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Patent 2176876 Summary

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(12) Patent Application: (11) CA 2176876
(54) English Title: POT, ESPECIALLY PRESSURE COOKER, AS WELL AS MATCHING LID, STEAMER INSERT, SIMMERING INSERT, AND CUTTING INSERT
(54) French Title: MARMITE, PLUS PARTICULIEREMENT UN AUTOCLAVE, AVEC COUVERCLE, ACCESSOIRE D'ETUVAGE, ACCESSOIRE POUR MIJOTER ET ACCESSOIRE POUR COUPER, ADAPTES
Status: Dead
Bibliographic Data
(51) International Patent Classification (IPC):
  • A47J 27/08 (2006.01)
  • A47J 27/082 (2006.01)
  • A47J 36/16 (2006.01)
(72) Inventors :
  • NIESE, KARL (Germany)
(73) Owners :
  • NIESE, KARL (Germany)
(71) Applicants :
  • NIESE, KARL (Germany)
(74) Agent: SIM & MCBURNEY
(74) Associate agent:
(45) Issued:
(22) Filed Date: 1996-05-17
(41) Open to Public Inspection: 1996-11-19
Examination requested: 2003-04-17
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data:
Application No. Country/Territory Date
195 18 305.3-16 Germany 1995-05-18

Abstracts

English Abstract






A pot has a bottom and a circumferential wall with a lower
edge and an upper edge, the lower edge connected to the bottom.
Pot handles are connected to the exterior of the circumferential
wall. Inwardly projecting pot segments as components of a
closure mechanism are provided wherein the inwardly projecting
pot segments extend in the circumferential direction and are
positioned below the upper edge. The pot is provided with a
matching pressure cooker lid, a steamer insert, a double boiler
insert, and a cutting insert.





Claims

Note: Claims are shown in the official language in which they were submitted.





WHAT I CLAIM IS:
1. A pot comprising:
a bottom;
a circumferential wall with a lower edge and an upper
edge, said lower edge connected to said bottom;
pot handles connected to the exterior of said
circumferential wall;
inwardly projecting pot segments as components of
a closure mechanism, wherein said inwardly projecting pot
segments extend in the circumferential direction and are
positioned below said upper edge.
2. A pot according to claim 1, wherein said inwardly
projecting pot segments are integral stamped projections of said
circumferential wall.
3. A pot according to claim 2, wherein at least two of
said inwardly projecting pot segments are evenly distributed in the
circumferential direction of said circumferential wall.
4. A pot according to claim 2, wherein a wall thickness
of said inwardly projecting pot segments is substantially identical
to the wall thickness of said circumferential wall.
5. A pot according to claim 2, further comprising a
- 53 -

circumferential band connected to the exterior of said
circumferential wall for covering recesses in the exterior of said
circumferential wall caused by stamping said inwardly projecting
pot segments.
6. A pot according to claim 5, wherein said band is
welded to the exterior of said circumferential wall.
7. A pot according to claim 1, wherein said
circumferential wall comprises at least one outwardly extending
vertical projection.
8. A pot according to claim 7, wherein between
neighbouring ones of said inwardly projecting pot segments gaps
are provided and wherein said at least one vertical projection is
located in the area of one of said handles above said inwardly
projecting pot segments within one of said gaps.
9. A pressure cooker lid for a pot comprising a bottom,
a circumferential wall with a lower edge and an upper edge, the
lower edge connected to the bottom pot handles connected to the
exterior of the circumferential wall, inwardly projecting pot
segments as components of a closure mechanism, wherein the
inwardly projecting pot segments extend in the circumferential
direction and are positioned below the upper edge; said pressure
- 54 -




cooker lid comprising:
a hood with at least one pressure relief and venting
valve and a combined pressure indicator/venting device wherein
said hood has a circumferential edge;
a cylindrical lid wall connected to said circumferential
edge of said hood;
said cylindrical lid wall having outwardly projecting lid
segments as components of said closure mechanism, wherein
said outwardly projecting lid segments extend in the
circumferential direction and cooperate with the inwardly projecting
pot segments to close the pot;
a sealing element for sealing the pot when closed.
10. A pressure cooker lid according to claim 9, wherein
said outwardly projecting lid segments are integral stamped
projections of said cylindrical lid wall.
11. A pressure cooker lid according to claim 10 wherein
the number of said outwardly projecting lid segments is identical
to the number of said inwardly projecting pot segments wherein
said outwardly projecting lid segments are shorter than gaps
between said inwardly projecting pot segments.
12. A pressure cooker lid according to claim 10 wherein

- 55 -





said outwardly projecting lid segments have upwardly curved ends
pointing toward said hood.
13. A pressure cooker lid according to claim 12, wherein
a length of said outwardly projecting lid segments between said
upwardly curved ends is identical to the length of said inwardly
projecting pot segments.
14. A pressure cooker lid according to claim 10, wherein
said pressure cooker lid further comprising at least one spring
connected to the exterior of said cylindrical lid wall between said
hood and said outwardly projecting lid segments, wherein said at
least one spring is progressively tensioned when said pressure
cooker lid is placed on said circumferential wall and the pot is
closed.
15. A pressure cooker lid according to claim 14, wherein
said at least one spring is wave-shaped in the circumferential
direction of said cylindrical lid wall, wherein valleys of said at least
one wave-shaped spring are positioned in the area of said
outwardly projecting lid segments.
16. A pressure cooker lid according to claim 15, wherein
said at least one spring comprises bent, meander-shaped
sections.

- 56 -

17. A pressure cooker lid according to claim 14, wherein
said sealing element is a sealing ring positioned between said
hood and said at least one spring and resting on said cylindrical
lid wall, wherein said sealing ring has an outwardly facing side
with a sealing edge.
18. A pressure cooker lid according to claim 9, wherein:
said at least one pressure relief and venting valve
has a valve body in the form of a sleeve with a first and a second
end;
said hood has an opening into which said sleeve is
inserted so as to extend with a first end into the interior of said
hood;
said hood comprises a pressure spring positioned in
said opening and acting on said sleeve;
said sleeve is supported by said pressure spring so
as to be displaceable to a limited extent;
said at least one pressure relief and venting valve
has a perforated disc comprising a valve opening and connected
to said second end of said sleeve;
said at least one pressure relief and venting valve
has a valve ball movably positioned in said sleeve for closing said

- 57 -

valve opening.
19. A pressure cooker lid according to claim 18, wherein
said at least one pressure relief and venting valve has a rubber-
elastic insert with an outwardly facing end face forming a valve
seat, said sleeve having a sealing edge and being positioned in
said rubber-elastic insert, wherein between said sleeve and said
rubber-elastic insert an annular gap as a steam venting channel
is provided, and wherein said valve seat and said sealing edge
cooperate to provide a sealing action for said pressure relief and
venting valve.
20. A pressure cooker lid according to claim 9, wherein:
said combined pressure indicator/venting device has
a sleeve with a first and a second end;
said hood has an opening into which said sleeve is
inserted so as to extend with a first end into the interior of said
hood and be displaceable to a limited extent;
said combined pressure indicator/venting device
further has a piston and a pressure spring, said piston supported
in said sleeve so as to be moveable against a force of said
pressure spring;
said combined pressure indicator/venting device



- 58 -

further having a rolled diaphragm positioned at said first end of
said sleeve;
said piston having a first end extending into the
interior of said hood and resting with said first end on said rolled
diaphragm; and
said piston having a second end remote from said
first end, wherein said second end comprises colored rings.
21. A pressure cooker lid according to claim 20, wherein
said sleeve, in the area of said opening of said hood, comprises
a radially inwardly oriented annular projection with an upper and
a lower side and engaged radially outwardly by said rolled
diaphragm, said combined pressure indicator/venting device
further comprising a spring plate, resting at said lower side of said
radially inwardly oriented annular projection, and a bushing,
connected to said piston and resting at said upper side of said
radially inwardly oriented annular projection.
22. A pressure cooker lid according to claim 20, wherein
said hood has a stamped depression in which said opening is
located, said stamped depression having an upper outer edge with
at least one radially extending groove.
23. A pressure cooker lid according to claim 22, wherein


- 59 -




said combined pressure indicator/venting device comprises a
rubber-elastic perforated disc with an outer rim connected to said
second end of said sleeve, said perforated disc covering said
stamped depression and resting with said outer rim on said upper
outer edge of said stamped depression.
24. A pressure cooker lid according to claim 23, wherein
said perforated disc has spacer elements at a side thereof facing
said stamped depression.
25. An steamer insert for a pot comprising a bottom, a
circumferential wall with a lower edge and an upper edge, the
lower edge connected to the bottom, pot handles connected to the
exterior of the circumferential wall, inwardly projecting pot
segments as components of a closure mechanism, wherein the
inwardly projecting pot segments extend in the circumferential
direction and are positioned below the upper edge; said steamer
insert comprising:
a bottom with openings;
a circumferential wall with a lower edge and an upper
edge, said lower edge connected to said bottom;
said upper edge being bent outwardly for resting on
the upper edge of the circumferential wall of the pot;

- 60 -

said circumferential wall comprised of a lower
cylindrical portion adjacent to said bottom and an upper cylindrical
portion adjacent to said upper edge, wherein said upper cylindrical
portion has a greater diameter than said lower cylindrical portion;
said circumferential wall further comprising a
transition portion for connecting said upper and said lower
cylindrical portions, wherein said transition portion matches a
contour of the inwardly projecting pot segments.
26. A steamer insert according to claim 25, wherein the
diameters of said upper and said lower cylindrical portions and
said transition portion are smaller than an inner diameter of the
pot so that said steamer insert is spaced from the circumferential
wall of the pot and does not come into contact with the inwardly
projecting pot segments.
27. A lid for a pot comprising a bottom, a circumferential
wall with a lower edge and an upper edge, the lower edge
connected to the bottom, pot handles connected to the exterior of
the circumferential wall, inwardly projecting pot segments as
components of a closure mechanism, wherein the inwardly
projecting pot segments extend in the circumferential direction and
are positioned below the upper edge; said lid comprising:
- 61 -

a hood;
a cylindrical circumferential wall comprising an upper
wall section connected to said hood, a lower wall section, and a
transition portion connecting said upper wall section to said lower
wall section;
said lower wall section having a smaller diameter
than said upper wall section.
28. A lid according to claim 27 wherein the outer
diameters of said upper wall section and said lower wall section
are smaller than the inner diameter of the circumferential wall of
the pot so that said lower wall section rests on the inwardly
projecting pot segments.
29. A lid for a steamer insert comprising a bottom with
openings, a circumferential wall with a lower edge and an upper
edge, said lower edge connected to said bottom, said upper edge
being bent outwardly for resting on an upper edge of a
circumferential wall of a pot, the circumferential wall comprised of
a lower cylindrical portion adjacent to the bottom and an upper
cylindrical portion adjacent to the upper edge, wherein the upper
cylindrical portion has a greater diameter than the lower cylindrical
portion, the circumferential wall further comprising a transition

- 62 -





portion for connecting the upper and lower cylindrical portions,
wherein the transition portion matches a contour of inwardly
projecting pot segments; said lid comprising:
a hood;
a cylindrical circumferential wall comprising an upper
wall section connected to said hood, a lower wall section, and a
transition portion connecting said upper wall section to said lower
wall section;
said lower wall section having a smaller diameter
than said upper wall section.
30. A lid according to claim 29, wherein the outer
diameter of said upper wall section is greater and the outer
diameter of said lower wall section is smaller than the inner
diameter of the upper cylindrical portion of the steamer insert such
that said lid rests only with said transition portion on the steamer
insert.
31. A double boiler insert for a pot comprising a bottom,
a circumferential wall with a lower edge and an upper edge, the
lower edge connected to the bottom, pot handles connected to the
exterior of the circumferential wall, inwardly projecting pot
segments as components of a closure mechanism, wherein the

-63-

inwardly projecting pot segments extend in the circumferential
direction and are positioned below the upper edge; said insert
comprising:
a bottom;
a cylindrical circumferential wall connected to said
bottom and having an upper edge;
securing and closing elements connected to the
exterior of said cylindrical circumferential wall for cooperation with
the inwardly projecting pot segments.
32. An insert according to claim 31, wherein said
securing and closing elements comprise at least one outwardly
extending tab with an elastic tongue, extending in the
circumferential direction, for engaging under the inwardly
projecting pot segments.
33. An insert according to claim 31, wherein said tongue
has a free end with an upwardly extending projection.
34. An insert according to claim 31, wherein said
securing and closing elements further comprise for each one of
said tongues a securing flap connected to said cylindrical
circumferential wall spaced from said respective tongue.
35. An insert according to claim 31, wherein said

- 64 -




securing and closing elements further comprise at least one
outwardly projecting flap displaced upwardly and spaced from said
tab such that in a closed position said outwardly projecting flap
contacts a corresponding inwardly projecting pot segment.
36. An insert according to claim 35, further comprising a
ring member arranged at said cylindrical circumferential wall,
wherein said outwardly projecting flaps, said tabs, and said
securing flaps are parts of said ring member.
37. An insert according to claim 36, further comprising a
sealing ring arranged above said ring member, said sealing ring
having an outer side with a sealing edge.
38. An insert according to claim 37, wherein said sealing
ring is arranged such that said sealing edge rests within at least
one outwardly extending vertical projection of the circumferential
wall of the pot when said insert is placed into the pot.
39. A cutting insert for a pot comprising a bottom, a
circumferential wall with a lower edge and an upper edge, the
lower edge connected to the bottom, pot handles connected to the
exterior of the circumferential wall, inwardly projecting pot
segments as components of a closure mechanism, wherein the
inwardly projecting pot segments extend in the circumferential

- 65 -





direction and are positioned below the upper edge; said cutting
insert comprising:
a cutting disc insertable into the pot, said cutting disc
having areal disc surfaces with cutting elements for cutting,
shredding, and slicing;
said cutting disc having an outer circumference with
alternatingly upwardly and downwardly extending flaps;
said upwardly extending flaps resting on the inwardly
projecting pot segments;
said downwardly extending flaps positioned between
the inwardly projecting pot segments;
a turntable;
said cutting disc comprising a bearing for rotatably
supporting said turntable.
40. A cutting insert according to claim 39, wherein said
turntable comprises an eccentrically arranged turn grip as a feed
channel for material to be cut.
41. A cutting insert according to claim 40, wherein said
turn grip comprises a sleeve surrounding said feed channel and
being rotatably supported thereat, further comprising a push
member slidably supported at said sleeve.

- 66 -

Description

Note: Descriptions are shown in the official language in which they were submitted.


2 1 76876
POT, ESPECIALLY PRESSURE COOKER, AS WELL AS
MATCHING LID, STEAMER INSERT, S'~ lr~G INSERT,
AND CUTTING INSERT
Background of the Invention
The present invention relaks to a pot, especially a pressure
cooker pot, with a bottom and a circ~""'~ ial wall to which pot
handles as well as projecting pot segments extending in the
circu",' ~IIIidl directions, provided as cu"".c",t:"k, of a closure
means, are arranged. The invention also relates to a lid, a
steamer insert, a double boiler insert, as well as a cutting insert for
such a pot.
Known pressure cookers have, in general, outwardly
projecting securing and closing elements so that a rather large lid
is required in order to engage from the radial outer direction the
securing and closing elements. Fullllt:llllul~, these pots and the
co,lt~ .ul,di.,g lids are both provided with a long handle which in
order to ensure correct closure must be brought into alignment.
In the known pressure cookers the devices for a reliable closure
of the pressure cooker are integrated into the elongate pot
handles or lid handles. The construction of these pressure
cookers thus allows only for a limited number of designs variations

- 1 -
~ VS 18 305 a- 15 - Kal1 Ni~s~ - Al 2~8

2 ~ 76~76
so that pressure cookers, in general, are almost identical. The
design of regular cooking pots can therefore not be applied to
pressure cookers so that pressure cookers cannot be integrated
into design lines of cooking pots.
In addition to the disadvantage of allowing only a limited
number of design variations, the known pressure cookers have
also di~d.lvdllldges with respect to their manipulation.
In order to close the pot, the lid must be placed onto the pot
such that a certain segment of the bayonet closure of the lid is
introduced into a certain segment gap of the bayonet closure of
the pot. Since the lid covers the pouring rim of the pot like a cap,
the desired position is, in general, hard to find. F~,ll,er",o,e, a
centering means for the lid is not available which makes the
pldc~lllell~ of the lid on the pot even more difficult.
In order for the segments of the lid to engage below the
segments of the pot upon rotation of the lid, the lid must be
pushed '~..., ul~ sulJ:~Ia~ centrally counter to the spring
force of the rubber-elastic sealing so that the frictional force
between pot, seal, and lid is increased. During pressing down on
the lid and rotation of the lid, the pot must be securely held by teh
operator.

- 2 -
195 18 305.3-16 - K~r1 Nies~ - N 2~B

-
2 ~ 768 76
The segments of the bayonet closure which are arranged
on the pouring rim of the pot fu~ ll"o,~ make it i",~-~ssiule to
pour contents out of the pot in a directed manner.
Vvhen the pressure cooker is closed, the segment gaps of
the bayonet closure of the lid are in alignment with the segment
gaps of the pot. In order to prevent that due to the inner pressure
within the pressure cooker the seal is forced through the resulting
openings, the back of the seal must be very massive and wider
than this opening. This results in that the contact surface required
for a suitable length of the lower sealing lip is hardly sufficient.
The segments of pot and lid must also withstand the force
which is produced by the inner pressure within the pressure
cooker and acts to lift the lid off the pot. The cantilever girder are
co"t:~pu~,di.,y:y loaded by bending forces. Their stiffness can
only be adapted to the resulting load forces by varying their
thickness. Since pressure cookers are produced of material of
sul,~ldl 1" 'Iy identical thickness, this results in that a great portion
of the pressure cooker, which is subjected only to minimal loads,
are oversized. This results in high material costs and a high
weight.
From European Patent 0 247 406 a pressure cooker is

- 3 --
1~518 305.3-16 - Karl Nies~ - N 2~e

21 76876
known which below the edge of the container at the exterior of its
circu",'~ t~lllidl wall is provided with segments in the fomn of locks
and abutments which cooperate with PI~J~UI;UI1S at the lid wall of
the lid. The lid projects with all sides past the pot. Due tû the
resulting mushroom-shaped design the pot is very large. This pot
also has the di~advdl,ld~a that upon placing the lid onto the pot
the segments of the securing and closing l,,e~l,dl,i:,,,, are without
centering means. Since the locks and abutments are cu,, ,~,u, ,~, It~.
of the pouring rim, a directed pouring of the contents is not
possible. This pressure cooker c~",~u,i:,a~ a specially designed
sealing which due to its pivoting Illaulld~ialll requires an especially
wide pouring rim. Due to the wide pouring rim, the segments are
loaded by the inner pressure of the pot to a much greater extent
so that in this design it is also necessary to use ~ ,ueuth/cly thick
material. This again results in a high weight so that the pot is not
suitable as a regular cookin~ pot.
From Austrian Patent 116021 a pressure cooker is known
having an upper edge that is inwardly bent and provides a neck
strip against which the inner side of the lid abuts. In order to be
able to introduce the lid into the container, two cutouts are
provided which are p~ailiul ~ed didl I It:l(iU~ l~ opposed one another

-- 4 --
195 18 305 3-16 - K~ll Nios~ - N 2.t8

2 ~ 76876
and are r--h i n~cl into the necking ring. The
disadvantage of thi& pot is that no pouring rim for
a directed pouring of the contents is provided.
Since the cutouts do not completely cut through the
neck ring, because the Ll ;ninq width of the neck
ring serves as a sealing surface for the sealing
ring, there is always liquid retained within the
pot during pouring of liquid from the pot.
From German Patent 37 03 448 a ~LesDuL_ cooker
pot is known which the risk of deformation of the
locking elements upon ~JL~ UL2 loading is to be
prevented by providing them in the f orm out
outwardly extending wall projections. The lid
projects past the rim of the pot and has a wall
section with inwardly eYtending recesses for
receiving the outwardly extending wall projections
for locking the lid on the pot. The inwardly
extending recesses are subjected to ~_ ession
forces upon loading with pressure. For securing
the sealing ring in the desired position, further
inwardly extending securing elements are provided
at the lid above the inwardly extending reces~es.
These securing elements are sub; ected to a
stretching load. The combination of ~ _~ssion
forces and stretching load acting on the lid can
result in a stretching of the lid and thus leakage.
Fur~h~ -, the pot has the disadvantage that is
appears very large because of the lid engaging over
the rim of the pot. Also, due to its design it
cannot be integrated into existing design lines of
cooking pots. The outwardly extending projections
of the pot have the disadvantage that when pouring
out the contents, liquid will be caught at the
projections and the pot can be completely emptied
only when turned upside down.

2 ~ 76876
It i8 theref ore an ob~ ect of the present
invention to provide a pot for the aforementioned
kind which is easy to r-nirll~Ate, allows for
various design pos~;hilities~ can serve as a basic
element for ~l]~riliAry devices, and can be
lntegrated into already existing design series of
cooking pots. The invention is also co~ with
providing ~L.. ~,....lin~ additional devices such as
a lid, a steamer insert, a double boiler insert,
and a cutting insert.
Summary of the Invention
The pot according to the present invention i5
primarily characterized by:
A bottom;
A circumferential wall with a lower edge and
an upper edge, the lower edge connected to the
bottom;
Pot handles to the exterior of the
oirc=~eren'ci~l

- 5a -

21 76876
wall;
Inwardly projecting pot segments as C~ JOllel l;~ of a
closurellle~l~allialll whereintheinwardlyprojectingpotsegments
extend in the circu", .ell direction and are F~ ~ed below
the upper edge.
Preferably the inwardly projecting pot segments are integral
stamped pl~Jjel;tiolls of the circ~lllFelel,lidl wall.
Advdl Itdyeously at least two of the inwardly projecting pot
segments are evenly distributed in the circ~"~f~re"l;dl direction of
the circu" -ell wall.
Preferably the wall thickness of the inwardly projecting pot
segments is sub~ldll 'Iy identical to the wall thickness of the
circu" elllidl wall.
r~,edie"lly the pot further Col~ ,eS a circulllfelelllidl
band coll"e~led to the exterior of the circ~",re,el,lidl wall for
covering recesses in the exterior of the circu" ,r e"t;al wall caused
by stamping the inwardly projecting pot segments.
A~vd"tayeously the band is welded to the exterior of the
circ~l,,, el,lidl wall.
In another e",Lodi",e"l of the present invention the
circu" e"tial wall cv""),i~es at least one outwardly extending,
- 6 -
~95 18 305 3 ~6 - K~ri Nisss - N 2~/J
(',~

2l 76876
vertical projection.
Preferably, between n~ u, i"~ ones of the inwardly
projecting segments gaps are provided and the at least one
vertical projection is located in the area of one of the pot handles
above the inwardly prûjecting pot segments within one of the
segment gaps.
The present invention also relates to a pressure cooker lid
for the inventive pot. The pressure cooker lid according to the
present invention is primarily u lldld~ d by:
A hood with at least one pressure relief and venting valve
and a combined pressure i" 'i .,'vcnting device, wherein the
hood has a circu",f~ ~" ' edge;
A cylindrical lid wall c~nll~td to the circu",.'~ t:"lidl edge
of the hood;
The cylindrical lid wall having outwardly projecting lid
segments as ~,c""p~llel,;~. of the closure ")e~ l,d"i:,"" wherein the
outwardly projecting lid segments extend in the circ~", ~ idl
direction and cooperate with the inwardly projecting pot segments
to close the pot;
A sealing element for sealing the pot when closed.
Preferably, the outwardly projecting lid segments are

- 7 -
195 ~8 305.3-1~, K~rl Hi~s~ - N 248
.

2176~376 ~ ~
integral stamped ~uje:~,l;vlls 112 of the cylindrical lid wall.
Preferably, the number of the outwardly projecting lid
segments is identical to the number of the inwardly projecting pot
segments, wherein the outwardly projecting lid segments are
shorter than the segment gaps between the inwardly projecting pot
segments.
Advantageously, the outwardly projecting lid segments have
upwardly curved ends pointing toward the hood.
Preferably, the length of the outwardly projecting lid
segments between the upwardly curved ends is identical to the
length of the inwardly projecting pot segments.
Preferably, the pressure cooker lid further c~",~ at
least one spring con"e..L~d to the exterior of the cylindrical lid wall
between the hood and the outwardly projecting lid segments,
wherein the at least one spring is plu~ ,ly tensioned when
the pressure cooker lid is placed on the circ~""rc"t,ri" ' wall and
the pot is closed.
EA~ e~ ly, the at least one spring is wave-shaped in the
circ~",.' ~IIIidl direction of the cylindrical lid wall, wherein valleys
of the at least one wave-shaped spring are posi~iol~d in the area
of the outwardly projecting lid segments.

- 8 -
1~5~83053-~5~ Ni~s~-N2~8
C~

2~ 76876
The at least one spring preferably c~"",,i~s bent,
meander-shaped sections.
` The sealing element is preferably a sealing ring l)n~ " ~"ed
between the hood and the at least one spring and rests on the
cylindrical lid wall. The sealing ring has an outwardly facing side
with a sealing edge.
Preferably, the at least one pressure-limiting relief valve has
a valve body in the form of a sleeve with a hrst and a second end.
The hood has an opening into which the sleeve is inserted so as
to extend with the first end into the interior of the hood. The hood
Ciolll~ 5 a pressure spring positioned in the opening and acting
on the sleeve. The sleeve is supported by the pressure spring so
as to be fl;.,.l,..,~,.l.l~ to a limited extent. The at least one
pressure relief and venting valve has a p~, tu, ' ' disc Golll~,lic,i, ,9
a valve opening and co""e~,tt:d to the second end of the sleeve.
The at least one pressure relief and venting valve has a valve ball
movably po~ iol~ed in the sleeve for closing the valve opening.
Advc.l ,le-~eously, the at least one pressure relief and venting
valve has a rubber-elastic insert with an outwardly facing end face
forming a valve seat, the sleeve having a sealing edge and being
,J- " .led in the rubber-elastic insert. Between the sleeve and

g
19510 305.~-16 - Kad t.lbs~ - N 2~8
(!!~,

21 76876
rubber-elastic insert an annular gap is provided as a steam
venting channel. The valve seat and the sealing edge cooperate
to provide a sealing action for the pressure telief and venting
valve.
Advdlltd~uusly, the combined pressure indicatorlventing
device has a sleeve with a first and a second end. The hood has
an opening into which the sleeve is inserted so as to extend with
the first end into the interior of the hood and be ~ le to a
limited extent. The combined pressure indicator/venting device
further has a piston and a pressure spring. The piston is
supported in the sleeve so as to be movable against the force of
the pressure spring. The combined pressure i"~; ' -'vcnting
device further has a rolled did,lJI'II d~l l l pOai~iul ,ed at the first end of
the sleeve. The piston has a first end extending into the interior
of the hood and resting with the first end on the rolled .lid,JIlldy.".
The piston has a second end remote from the first end wherein
the second end cc"",ri~es colored rings.
Advdll~d~eously, the sleeve, in the area of the opening of
the hood, cc" "~u, iaeS a radially inwardly orienkd annular projection
with an upper and a lower side and engaged radially outwardly by
the roll ~JidlJ~lld~ . The combined pressure indicatorlventing

- 10 -
1~5 1a 305 3~ K~rl NjRS~ - N 2~a
l3

~ 2176876
device further co" "~ a spring plate resting at the lower side of
the radially inwardly oriented annular projection and a bushing
cu,,,,e- t~ d to the piston and resting at the upper side of the
radially inwardly oriented annular projec~ion.
In another e~uud;,l~elll of the present invention the hood
has a stamped dep,e~siu,) in which the opening is located. The
stamped dep,e~:,ioll has an upper outer edge with at least one
radially extending groove.
The combined pressure i" 'vcnting device co"",,i:.es
preferably a rubber-elastic pe, ru, dlc:d disc with an outer rim
colllleuled to the second end of the sleeve. The pelrU,dlecl disc
covers the stamped de~JI easion and rests with the outer rim on the
upper outer edge of the stamped de~Jre~siùll~
The perforated disc preferably culll~ulises spacer elements
at a side thereof facing the stamped deure~siùll.
The present invention also relates to a steamer insert for
the inventive pot. The steamer insert according to the present
invention is primarily u llaldclt~ ed by:
A bottom with openings;
A circu" '~, llidl wall with a lower edge and an upper edge
the lower edge col~"e~;ted to the boHom;

- 11 -
1~518 3053.1~ - Karl Ni~sa - N 2~8
~.

2~ 76876
The upper edge being bent outwardly for resting on the
upper edge of the circ~" ~ idl wall of the pot;
The circu", ~"tial wall cu",u,i~ed of a lower cylindrical
portion adjacent to the bottom and an upper cylindrical portion
adjacent to the upper edge, wherein the upper cylindrical portion
has a greater diameter than the lower cylindrical portion;
The circu".r ~" wall further cu",~ ed of a transition
portion for cu",~ the upper and lower cylindrical portions
wherein the transition portion matches the contour of the inwardly
projecting pot segments.
Preferably the diameters of the upper and lower cylindrical
portions and the transition portion are smaller than the inner
diameter of the pot so that the steamer insert is spaced from the
circ~" "r~ idl wall of the pot and does not come into contact with
the inwardly projecting segments of the pot.
The present invention further relates to a lid for the
inventive pot. The lid according to the present invention is
primarily .;l ,ard~ d by:
A hood;
A cylindrical circu"~ idl wall c~",u,i~i"y an upper wall
section co""e~ d to the hood, a lower wall section and a

- 12-
1f~5 18 305.3.16 ~ 1 Nl05~ - N 2~8
~i~
-

21 7687~
transition portion col,l.o: ,g the upper wall section to the lower
wall section;
The lower wall section having a smaller diameter than the
upper wall section.
Preferably, the outer diameters of the upper wall section
and the lower wail section are smaller than the inner diameter of
the circ~ , wall of the pot so that the lower wall section
rests on the inwardly projecting pot segments.
The present invention further relates to a lid for a steamer
insert according to the present invention. The inventive lid is
primarily ullcll~ute~ d by:
A hood;
A cylindrical circ~"" ~llti~l wall cu,"~ ,g an upper wall
section coll"e.lt:d to the hood, a lower wall section, and a
transition portion cu""e.:ti"g the upper wall section to the lower
wall section;
The lower wall section having a smaller diameter than the
upper wall section.
Preferably, the outer diameter of the upper wall section is
greater and the outer diameter of the lower wall section is smaller
than the inner diameter of the upper cylindrical portion of the

- 13 -
195 1~ 305 3~ K~ri Niess - N 2Ç~
(3

2~ 76876
steamer insert such that the lid rests only with the transition
portion on the steamer insert.
The present invention further relates to a double boiler
insert for the inventive pot. The double boiler insert according to
the present invention is primarily ulldldut~ ed by:
A bottom;
A cylindrical ciraJ",~ t:" ' wall cull"~ule:d to the bottom
and having an upper edge;
Securing and closing elements cur" ~ d to the exterior of
the cylindrical circ~", ~, ~tidl wall for coope, , with the inwardly
projecting segments of the pot.
Preferably, the securing and closing elements comprise at
least one outwardly extending tab with an elastic tongue,
extending in the circu",f~.~" direction, for engaging under the
inwardly projecting segments of the pot.
Ex~u~.llly, the tongue has a free end with an upwardly
extending projection.
The securing and closing elements further comprise for
each one of the tongues a securing flap col)l ,e~.t~d to the
cylindrical circu", '~ l llidl wall spaced from the ~ ue. ti ~c tongue.
Advdllldy~ously, the securing and closing elements further

- 14-
195 10 305.3-16 - Ka~i Ni~s~ - N 2~
i,~

2 1 76876
comprise at least one outwardly projecting flap displaced upwardly
and spaced from the tab such that in a closed position the
outwardly projecting flap ContaGtS a cu~ ,.li"~ inwardly
projecting pot segment.
Preferably, the insert further ~"",,i~es a ring member
arranged at the cylindrical circu~ IIIidl wall, wherein the
oub,vardly projecting flaps, the tabs, and the securing flaps are
parts of the ring member.
The insert may further comprise a sealing ring arranged
above the ring member, wherein the sealing ring has an outer side
with a sealing edge.
Preferably, the sealing ring is arranged such that the
sealing edge rests within at least one outwardly extending, vertical
projection of the circu",~ t:"" ' wall of the pot when the insert is
placed into the pot.
The present invention further relates to a cutting insert for
the inventive pot. The cuUing insert according to the present
invention is primarily ~JIdldute~ d by:
A cutting disc insertable into the pot, the cutting disc having
areal disc surfaces wlth cutting elements for cutting, shredding,
and slicing;

- 15-
1~5 18 305.3-16 - K~d Nieso - N 2~8

21 76876
The cutting disc having an outer circumference with
ly upwardly and ~ Iy extending flaps;
The upwardly extending flaps resting on the inwardly
projection pot se~",~,lts
The c'c...~ Iy extending flaps F: ~ ,ed between the
inwardly projecting pot seu",t:"ts;
A turntable;
The cutting disc . o" ".riai"~ a bearing for rotatably
supporting the turntable.
Preferably the turntable ~,OIll~ulia~S an ecce"l,i 'Iy
arranged turn grip as a feed channel for material to be cut.
The turn grip CC)III~JI;D~S a sleeve surrounding the feed
channel and being rotatably supported thereat. The cutting insert
further c u" ,u, iaes a push member slidably supported at the sleeve.
The inventive pot is clldldu~ d in that the inwardly
projecting pot segments which are Co"",ol,.="tS of the closure
"~cl,d"ia", and therefore cooperate with cc,r"3:"uu"di"9 elements
provided at the lid are arranged below the upper edge of the
circ~". ~"Lial wall in the interior of the pot. The pouring rim of
the pot thus remains unaffected by the design of the inwardly
projecting pot segments so that the pouring of liquid from the pot

- 16 -
19518 3053-t6 - l~lt N~s~ - N Z~8

2 ~ 76876
is, Fullllt:llllul~ the outer shape of the pot is not
affected so that the pot does not differ in its outer apped,d"~
from any cu,,,~., Idl pot. This allows the ill~ldt;UIl of the
inventive pût into already existing design lines of cooking pots.
On the other hand, the inwardly projecting pot segments can be
used as securing and abutting elements for any suitable pot insert
so that the , range of the pot with respect to
conventional pots especially with respect to known pressure
cookers is suu;~ldll - 'Iy widened. Which inserts can be used in
c~,,,,euliu~ with the inventive pot will be explained in more detail
in the following with the aid of the steamer insert a double boiler
insert, and a cutting insert.
The novel ~ .,;"9 of the inwardly projecting pot
segments into the interior of the pot has fu,ll,e,,,,ù,~: the
advantage that it is no longer needed to provide an elongate
handle. It is thus possible to use any desired pot handle so that
more design variations are possible.
At least two inwardly projecting pot segments are provided
which are evenly distributed over the circumference of the pot.
Advantageously, an odd number of inwardly projecting pot
segments is provided so that for one gap on one side of the pot

- 17-
195 18 305.3-15 - K Il Hiess - N 2~B
~3

21 7687~
didlll~.t~i ~Iy opposed an inwardly projecting pot segment is
provided. This increases the stability of the pot especially when
used as a pressure cooker.
Preferably, the inwardly projeGting pot segments are integral
stamped ~l uj~-.liul la of the circ~" "'~ ~:" wall. The t " ,uo~i" ,e"l
of such integral stamped plOje- liùl)s has the advantage that the
required stability upon use as a pressure cooker is ensured
without requiring the use of thicker material within the area of the
stamped p, u;~ S as has been the Gase in conventional
pressure cookers with the conventional securing and closing
segments. By providing such integral stamped p~ujt~ iu~ the
weight of the pressure cooker can be suL,ald" 'l~ reduced in
CUlll~JdribUIl to conventional pressure cookers.
The recesses which result from the stamping of the integral
stamped pruJ~ ~iùnS and which are visible from the exterior of the
pot cdn be a~vd"ldgeously covered by a band whereby the band
is a~v.~.,tdgeûusly welded to the exterior of the circu~,'t ~"
wall. This results ess~" 'Iy in a three-point u c""le~iu" which
., 'l~ increases the stability of the integral stamped
pl ujeuliul)~. Actually this results in a more stable dl I dl~ 111 as
would result from an increase of the wall thickness.
- 18 -
195 18 30A3-16 . K~ Nios~ - N 2~8
l'7~

2~ 76876
According to a further t:" ~L.~.li" ,t:"l, the circu, . ,' ~. Itial wall
of the pot is provided with at least one outwardly extending,
vertical projection. This outwardly extending, vertical projection is
located ad~ dgeously in the area of one of the pot handles at
one of the segment gaps between and above the integral stamped
~J~uje~.l;ol~s. This at least one outwardly extending, vertical
projection will be explained in more detail in uulll,euliul~ with the
pressure cooker lid and the double boiler insert.
The pressure cooker lid is ullaldu~ d in thât outwardly
projecting lid segments are provided. The outwârdly projecting lid
segments can be embodied within the circu",' ~IIIidl wall of the
lid in the same manner as the inwardly projecting pot segments.
The number and circu",' ~ lidl distribution of the outwardly
projecting lid segments cu" ~a,uOI~ to the number and distribution
of the inwardly projecting pot segments, whereby the outwardly
projecting segments are shorter than the segment gaps arrsnged
between the inwardly projecting pot segments. The inventive
pressure cooker lid can be pusitiol,ed on the pot in any desired
way, whereby in most cases the lid segments will come to rest on
the pot segments. Accordingly, the pressure cooker lid in this
position is already centered. By rotating the lid, a position will be

- 19 -
1~5 18 305.~15 - tCal! Ni~s~ - N 2~8
C LG~

2~ 76876
.
assumed in which the lid segments are in the area of the segment
gaps between the pot segments so that the lid will fall down due
to its own weight. Upon further rotation of the lid, the pot
segments and the lid segments will glide along one another so
that the pot is closed.
In this context it is d~Vdl lldgeous to provide the lid
segments with curved ends that point upwardly to the hood of the
lid. The length of the lid segment between the curved ends
COI l~ oll~b advantageously to the length of the pot segments.
In order to ensure a tight closure of the lid the exterior of
the circu" ~ " wall of the lid is provided with at least one
spring between the hood and the lid segments. This spring will be
tensioned ~luul~ ly during plc,~",e"l and closure of the pot.
As a special e ~ ~ IL ~ "el ,l the spring can extend in the
circu",r~,c:l,tidl direction along the circ~""'~ ~" wall in a wave-
shaped fashion whereby the valleys of the waves are arranged in
the area of a lid segment. In order to secure the spring at the
circu",r t",tic.l wall of the pressure cooker lid the spring is
preferably provided with bent, meander-shaped sections in the
plane of the lid whereby the spring engages with at least one
meander-shaped section a Cull~S~Joll ,9 opening or slot of the

- 20 -
~5 18 305 3~ K~lt Nles~ - N 2~18

2 176~376 -~
circu,n~ ~IIIidl wall.
Upon sliding the pot segments and the lid segments across
one another, the pot segments are pushed progressively into the
area of the wave valleys of the spring so that the spring is
ac.,u,di"y!~ tensioned. The maximum tension is reached when
the pot segments rest on the center portion of the lid segments.
The valleys of the waves of the spring force the pot segments
securely against the lid segments so that a secure closure is
ensured.
For achieving a sealing action, a sealing element in the
form of a sealing ring is provided which is seated between the
hood and the spring at the cylindrical lid wall and has at its outer
side a circu"~ "tial sealing edge. During closing, the sealing
edge of the sealing ring intercepts the area of the integral stamped
p, uj~,ti~ i ,s SO that the pressure cooker is not sealed. Only when
the upwardly curved ends of the lid segments engage the pot
segments, the lid is lifted by the spring and forced in the upward
direction. Accordingly, the sealing edge moves upwardly and
leaves the area of the integral stamped p~ ;tiO~ so that the pot
is tightly sealed. Accordingly, the integral stamped projection
serves in coopei- " , with the sealing edge of the sealing ring as

- 21 -
1~5 18 305 3~1r - Korl Nl~so - N Z,18
~ j;,`~

2~ 76~76
a safety device because a tight sealing of the interior of the pot is
only ensured when the required end position of the lid and the pot
is reached. Only in this position it is ensured that the lid cannot
be lifted off the pot by the interior pressure thus preventing
el,.Jd"~e,i,~ the operator.
Due to the inventive closure ~, ~acl~dl l;~ l l and the e';. "i, Id~iU~ I
of the elongate grip, the pressure relief and Yenting valve can be
pl " ,ed at any desired location within the hood of the pressure
cooker lid. According to another ~:",bodi",~"l, the pressure relief
and venting valve UUIll~Jlia~S as a valve body a sleeve extending
into the interior of the lid and po:,itiùned in an opening of the hood
in a manner so as to be slidable to a limited extent against the
force of a pressure spring. The sleeve is provided at the exterior
of the lid with a p~, ru, ' ' disc having a valve opening which is
closable by a valve ball movably arranged within the sleeve. The
pressure relief and venting valve is thus poa;t;ol~ed suLaldllt;.ll~
within the interior of the lid so that the d,upedldl~ce of the pressure
cooker is not negatively affected.
The sleeve is preferably arranged within an insert
c~ nia~d of rubber-elastic material so as to provide an annular
gap as a steam venting channel, whereby the rubber-elastic insert

- 22 -
1~5 ~8 305.3.16 - Korl Nlos- - N 2~11
~3

21 76876
provides at its outwardly facing end face a vaive seat which
Coupt~ with a sealing edge provided at the sleeve. The
advantage ûf the inventive pressure relief and venting valve is that
the individual parts can be manufactured in a simple manner and
are therefore inexpensive. The assembly of the pressure relief
and venting valve is possible with few manipulative steps.
In addition, the pressure cooker lid Cu~ Jlia~:5 a pressure
indicator/venting device whose essential uc~ uullel~ts~ with the
exception of the externally visible colored rings, are also displaced
into the interior of the lid. According to a preferred e",i,o.li",el,L,
the pressure indicator/venting device co",,u,i~es a sleeve inserted
into an ûpening of the hood, extending into the interior of the lid,
and being d;-l>l~ce~ lP to a limited extent. In the sleeve a piston
is movably supported counter to the force of a pressure spring
whereby the piston at the end facing the interior of the lid rests at
a rolled didpl lldylll p~:,iliolled at the sleeve. At the other end the
piston is provided with colored rings. The rolled did,ullldylll
engages a radially inwardly extending annular projection of the
sleeve. A spring plate is supported at the lower side of the
radially inwardly extending annular projection and a bushing,
c~""eul~d to the piston, is supported at the upper side of the

- 23 -
~5 ~830OE3-~6-K~11Ni~s~-HZÇ3

21 76876
projection. The opening of the hood is aJvd"ldyeously provided
within a stamped de",e~iol1 of the hood having an upper outer
edge with at least onê radially extending groove. This groovê may
also be stamped. Adva"tdgeously, the sleeve supports at the
outer slde of the hood a rubber elastic pe,ru,. ' disc which
covers the stamped dtlplt,asi. 1~ and rêsts with its rim at the upper
outer edgê of thê stamped d~,ult~ ioll. The pe,~ ' J disc is
provided with spacer elements at a side facing the stamped
dep,t:~;ol~ which may be, for example, in the form of knobs.
For opening the pot, the lid must be forced d.... ~ d!y and
then rotated. In order to be able to do so, the pressure built up
within thê pot must be released. This is possible with thê
pressure indicator/venting device. First, the piston is pressed
du ... I ... .lly until the spacer element of the rubber-elastic
pe,ru,i ' ' disc comes into contact with the outer surrace of the
stamped d,:, ,r~asio~, of the hood. By doing so, the rolled
did~Jllldylll is forced away from the underside of the stamped
d~ ,si.,n and the annular gap provided between the sleeve and
the opening of the hood is opened for venting.
The inventive pot has the advantage that it can also be
used together with a steamer insert and a co,,~,uondi,,y lid.

- 24 -
195 t8 aosa-16- K~rlNlrJs~-N2~0
':~

21 76876
.
Conventional pots have usually one lid that is designed such that
sufficient steam can be released in order to avoid rattling of the lid
during cooking. However, during steaming as little steam as
possible should vént from the pot. In order to be able to reconcile
these two opposed requirements, known lids have a closable
opening at the lid handle. A disadvantage of such ~ o.li~el~t~
is the increased technical ~ r " ~re, increased soi1ing tendency,
and limitations with respect to the design of the lid handle. A
further disadvantage is that the opening and closing of these
openings may be o~.looht:d so that with these lids it is not
possible to avoid rattling and the food to be cooked may overflow.
In order to avoid this, a steamer insert is s~ estr~d which
is ~,lldl d~,t~ d in thatthe circu",~ idl wall co"",,i~s a lower
cylindrical portion adjacent to the bottom and an upper cylindrical
portion adjacent to the upper edge whereby the upper cylindrical
portion has a greater diameter than the lower cylindrical portion
and both cylindrical portions are co,)~ d by a flange-like
transition portion adapted to the contour of the pot segments. In
order for the steamer insert not to come into contact with the
circu,~ idl wall of the pot and its pot segments, the outer
diameter of the cylindrical portions and of the flange-like transition
- 25 -
195 183053-15-K~dNlos~-N218
.



~' ~

2 ~ 76876
portion is smaller than the inner di"~ ll of the pot. The
steamer insert thus rests only with its upper edge on the pouring
rim of the pot.
The lid which fits this dlldilg~lllell~ is ~lldld~tl ri~ed in that
the cylindrical circulllf~ llidl wall ~ulll~ an upperwall section
Colll~. t~d to the hood and a lower wall section con"e~;led with a
transition portion to the upper wall section. The diameter oF the
lower wall section is smaller than the diameter of the upper wall
section. This lid can be used with and without the steamer insert.
The outer diameters of the two wall sections are smaller than the
inner diamekr of the circu",F~ llidl wall of the pot so that the
lower wall section of the lid can be placed onto the pot segments.
The centering of the lid in this case is achieved with the transition
portion in coo~ldli~ll with the circu", I:"lial wall of the pot.
Since this transition portion does not rest in a sealing manner at
the circ~",' ~ idl wall and since between the pot segments
segment gaps are provided no additional opening within the lid is
necessary. During cooking the foam formed within the interior of
the pot can thus rise into the free space between the
circu" I t~ ial wall of the pot and the wall section of the lid where
due to the lower temperature, it will collapse and flow down as a

- 26 -
1~5 18 30a3-16 - Kod Nhs~ - N 248
~.~

2~ 76876
liquid into the pot.
Vvhen using the lid together with the steamer insert, the
outer diameter of the upper wall section of the lid is preferably
greater and the outer diameter of the lower wall section of the lid
is smaller than the inner diameter of the upper cylindrical portion
of the steamer insert so that the lid contacts the steamer insert
only with the transition portion. The ~ul~ld~ l9 action thus is
achieved with the transition portion and the centering is achieved
with the circ~""f ~IIIidl wall of the lid. The function of the
transition portion and the circ~"~fe,t:"lidl wall, when used in
c~ ,eutiu~) with a steamer insert, is just the opposite as in the use
without steamer insert. The design of lid and steamer insert has
the advantage that the steam produced within the pot can
condense at the inner side of the cool lid so that s~l,c,ld"t;.~ no
steam will exit from the pot. The pot can thus not be cooked dry.
Delicate foods that should not be overheated are cooked in
a double boiler. For this purpose, a so-called double boiler is
used which is s~l,ald, I~y co,,,,u~ e~ of a double wall pot having
a hollow space into which water can be filled through an opening
provided at the pouring rim. Known double boilers have the
disadvantage that it is not possible to see how much water has

- 27 -
11151830a3-15~ Nbsll-N2~8

21 76876
.
been filled into the hollow spaGe. When too much water is present
within this hollow space, it will flow over; when too little water is
present the double boiler can cook dry. The hollow space is
difficult to access and thus difficult to Glean.
In order to avoid these disadvantages, the double boiler
insert for the inventive pot is ol ld~ d~,t~ d in that at the exterior
oF the circu" ,c~ ~" ' wall of the double boiler insert securing and
closing elements are arranged which cooperate with the pot
segments. These securing and closing elements comprise at least
one outwardly extending tab with an elastic tongue extending in
the circu".' .~"~;~1 direction for engaging below the inwardly
projecting pot segments. Advantageously, the tongue at its free
end is provided with an upwardly extending projection. With this
tab and elastic tongue the double boiler insert is fKed in the
desired position by a rotational ",oi~,."t:"l within the pot.
In order to prevent bending or breaking of the tongues
during removal of the double boiler insert from the pot, for each
one of the tongues a securing flap is c."lle~;tt:d to the cylindrical
circu",F~ idl wall and spaced from the respective tongue, This
securing flap, during mounting of double boiler in the pot and,
slides under the pot segment and upon removal of the double
- 28 -
19518 30h3-16 - K~ri Nioss - N 2~8

2 7 76~7~
boiler insert from the pot, must be cu,,l~,lut~,ly removed from the
pot segment before the double boiler insert can be removed from
the pot.
F~llllellllolt:, outwardlyprojectingflapsareadvantageously
provided which are displaced upwardly and spaced relative to the
tab with tongue such that in the closed position they abut the
C~l I e:.~,on~i. 19 pot segment.
In order to facilitate the manufacture ûf the tabs, securing
flaps and projecting flaps, the colll,uullellt~ are preferably part of
a ring member cul~,eu~ed to the exterior of the circulllre,e"lidl
wall, for example, by welding.
Above the ring member a sealing ring is arranged which at
its outer side has a circu" ,' el llidl sealing edge. This sealing ring
can be designed identical to the sealing ring of the pressure
cooker lid.
Known cutting device such as shredders, slicers, etc. have
in general a rectangular shape and must be held by hand at their
narrow sides so that the cutting surface is pu~itiuned at a more or
less steep angle. The other hand is used to guide the material to
be sliced or cut along the cutting surface whereby the hand
fatigues easily due to the repetitive movement. Ful ~1 ,e" "û, e, there

- 29 -
1~5 18 305.3-16 - Ksr1 Nhs~ 12~8
(~

21 76876
is a risk of injury. In order to avoid this risk, devices are known in
which the material to be cut is guided into a feed channel provided
with a push member which is guided along a carriage that is
advanced across the cutting surface. A disadvantage of these
devices is that the cut material is not directly received in a pot
because the ~ d~s~ ed manipulation is not possible within a
container. In order to make this possible, devices are known
having cutting surfaces in the form of a flat bowl with edge. This
must be placed onto a respective matching ,~ . The
material to be cut is moved back and forth across the bowl. Due
to the minimal diameter of the c~ ol~dill~ læ, only a
very short travel stroke is possible so that the operator must be
move the hand back and forth with great frequency. Due to the
short travel stroke there is no space for providing a feed channel
for feeding the material to the cutting surfaces. Also, the risk of
injury is still present.
Such di_3JJd,lLd~s are no longer present with the
inventive cutting insert designed for the inventive pot. The cutting
insert .,v,,,~,,i,~s a round disc insertable into the pot which at its
round surfaces is provided with cuKing elements, for example, for
cutting, slicing, or shredding. This cutting insert is .ill~ldut~ d

- 3û -
1~6 1A 305.3-16 - K~rl Nios~ - N 2~8

2~ 76876 --
in that at the circumference of the cutting disc _" , Id~
upwardly and '~ y extending flaps are provided and
arranged such that the upwardly extending flaps rest on the pot
segments and the ~ u!~ extending flaps are p- " ~ed
between the pot segments. The cutting disc ~u,,,,u,isas a bearing
for rotatably supporting a turntable. With this dlldllgt:lllelll of the
flaps the cutting insert is arrested in a simple manner within the
pot so that the cutting disc must not be held by hand. For
stabilizing its position, upwardly and '~.. i'y extending stays
are arranged between the flaps in an ~ ldlillg fashion.
The turntable is preferably supported at the center and can
rest at the edge. According to one e",u~di",t:"l the rotatable
support of the turntable is in the fonm of a hole provided at the
center of the cutting disc into which a cup of the turntable can be
inserted. This cup is puDi~iu,,ed centrally on its outer diameter is
such that it rests with minimal play in the hole. The turntable can
be provided with a beaded outer edge so that it rests with its bead
on the cutting disc. This reduces s~bDIdll~ l'; friction between the
turntable and the cutting disc.
AdVdlltd5~Usly, the turntable cu"",,iDas an ec;e, ' i lly
arranged tum grip which serves simultaneously as a feed channel

- 31 -
19s ~8 30A3, 18 - K~l Nl~sll - H 2~8

2 i 76376
.
for the material to be cut. The turn grip may comprise a sleeve
which surrounds the feed channel and which is rotatably supported
thereat. At the feed channel a push member is arranged with
which the material to be cut is forced onto the cutting disc. Since
the turn grip is not only rotatably about the sleeve, but also
o~ in the axial direction, one hand can perform the
rotational movement and simultaneously push the push member
into the feed channel. This su~:,ldl.- 'Iy facilitates the
manipulation of the cutting insert.
Brief Description of the Drawings
The object and adv_.,tdges of the present invention will
appear more clearly from the following a~J~ " ' .1 in conjunction
with the ac..~.",l,d"ying drawings, in which:
Fig. 1 shows a side view of a pressure cooker in the
closed state;
Fig. 2 shows a plan view of the pot of Fig. 1;
Figs. 3 and 4
show details of the pot, partly in section,
along the lines A-A, It:a~J~..ti./cly, B-B of Fig.
2;
Fig. 5 shows the stamped projection of Fig. 4 in

- 32 -
1~5 18 305.3-16, Ked Nies~ - N 2~8
( ~-`?

2~ 76876
.
horizontal section;
Fig. 6 shows a side view of the lid;
Fig. 7 shows a bottom view of the pressure cooker
lid of Fig. 6;
Fig. 8 and 9
show deeails of the pressure cooker lid partly
in section;
Fig. 10 shows a spring in a plan view;
Figs. 11 to 14
show the lvupe~ of the pot segments
and lid segments in various stages of closing
of the pot;
Figs. 15 and 16
show part-sectional views of the closed
pressure cooker pot;
Figs. 17 to 19
show a pressure relief and venting valve in
longitudinal section in various positions;
Figs. 20 to 22
show a pressure indicator/venting device in
longitudinal section in various positions;

- 33 -
195 18 30A3-16 - Kerl Nlese N 2~e

21 708~o ",
ig. 23 shows in section the pot with the steamer
insert and matching lid;
igs. 24 and 25
show details of the pot of Fig. 23, partly in
section;
ig. 26 shows a section of the pot with double boiler
insert;
ig. 27 shows a bottom view of the double boiler
insert shown in Fig. 26;
igs. 28 to 32
show details of pot and double boiler insert,
pe.,tiJ~ly, only of the double boiler insert
partly in section;
igs. 33 to 36
show the coope, ", of the flaps of the
double boiler insert with the pot segments in
different stages of the arresting process;
ig. 37 shows the pot with cutting insert in a plan
view;
ig. 38 shows the pot with cutting insert shown in Fig.
37 partly in section, partly in a side view;

- 34 -
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21 76876
Fig. 39 shows the cutting disc in a plan view; and
Fig. 40 shows the cutting disc of Fig. 39 in section
without cutting blade elements.
Description of Preferred Cr"uo~i",t:"ts
The present invention will now be described in detail with
the aid of several specific ~ uudi~ utilizing Figures 1 through
40.
Fig. 1 shows the pot 2 with pressure cooker lid 3 in the
position for use as a pressure cooker pot 1 in a side view. Due
to the pot segments and lid segments displaced into the interior of
the pot the inventive pressure cooker pot 1 does not differ with
the exception of the pressure cooker lid 3 having arranged thereat
the pressure relief and venting valve 10 and the pressure
i".l;..dlu,/vcnting device 11, from coll~/~.,tivlldl pots in its
d,l~pedldllc~. A further contribution to this is that no elongate
handle is present as is conventional for known pressure cooker
pots. Two bracket shaped pot handles 105 are arranged at the
circ~"" ~nlidl wall 100 of the pot which in their design
Cullt:Duul~d to the lid handle 111.
Fig. 2 shows a top view of the pot 2 I~::Ult:Dell' ~ in Fig. 1.
The pot 2 has at the upper area of the circ~ lidl wall 100 in

- 35 -
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21 76876
.
the shown t:",L: " "~:"l a total of five pot segments 4 distribukd
along the circumference which, as shown in Figs. 3 and 4, are in
the form of inwardly extending integral stamped ,u,ujt:-,liu"~ 1û4.
The recesses 102 which are visible from the exterior are covered
by a welded band 5. Also, at the upper portion of the
circ~""' tllll;dl wall 100 of the pot 2 at least one outwardly
extending, vertical projection 6 is provided in the area between the
potsegments4, respectively, thesegmentgaps 14 II,e,c:~h, ~,
preferably in the area of the pot handle 105, which will be
explained in more detail in connection with the sealing element 8
of the pressure cooker lid 3. The vertical projection 6 is po~iliolled
sull._..hdl above the stamped projection 104 and, as shown in
Fig. 5, is in the fomm of an integral stamped projection that extends
over a limited length of the circu",' ~IIIidl wall 1ûO in the axial
direction of the pot 2.
The pressure cooker lid 3 It:,Ult:~ll' ' in a side view in Fig.
6 (without spring, sealing element, grip, and valves) is in the form
of a plug-in lid and is cu""~ .ed of a hood 7 to which is co~"~ d
a '~..., u~ extending cylindrical circu",r~ "Lidl lid wall 110.
The pressure cooker lid 3 has at its circu".~ "lidl lid wall 110 lid
segments 12 the number of which Coll~uolldb to the number of

- 36 -
19518 305.3-16 - K~ll Nios~ - N 2~
~;~

21 76876
.
the pot segments 4. The lid segments 12 are also in the form of
integral stamped pluje~.tivilS 112 which extend outwardly. The
integral stamped ,u~uieutiu~ 112 comprise a center portion 113
which is horizontal and extends in the circ~" '~ rt:, direction and
has a transition into upwardly curved ends 13. Slots 16 for
receiving a spring 9 are provided between and 50111_. 'Id~ above
the stamped ulujè~liull;~ 112 within the circ~""'~ elllidl wall 11û.
The spring 9 can be seen in Fig. 7 showing the bottom view of the
pressure cooker lid 3 of Fig. 6. For safety reasons, two pressure
relief and venting valves 1û are provided within the hood 7. In the
left half of the hood 7 a pressure indicator/venting device 11 is
shown.
The pot segments 4 and the lid segments 12 of pot and lid
are si~ed such that the lid segments 12 fit in the segment gaps 14
of the pot 2 and the pot segments 4 of the pot fit in the gaps 15
between the curved ends 13 of the lid segments 12.
In Figs. 8 and 9 sections of the pressure cooker 3 along the
line D-D, respectively, E-E of Fig. 7 are leul~s,~nled. The hood 7
projects radially outwardly relative to the circ~",re,e" ' wall 11û
so that between the hood 7 and the circu",r elllidl wall 1û a
horizontal transition section 114 is provided at the underside of

- 37 -
~95 18 305 3-16 - K~l Nbs~ - N 248
(''~

~1 76876
which the sealing element 8 in the form of a sealing ring rests. As
is shown in Fig. 9, the sealing element 8 is secured with the
spring 9 and forced against the horizontal transition section 114.
The sealing ring 8 is SUu~ldll" 'Iy V-shaped and has at the outer
side a sealing edge 21 which projects slightly relative to the hood
7, respectively, relative to the outwardly extending stamped
projection 112. Due to the V-shaped t:"~uodi",e"l of the sealing
ring 8, the sealing edge 21 can yield radially inwardly upon
insertion of the pressure cooker lid 3 into the pot 2 so that always
a tight contact at the inner side of the pot 2 is ensured.
Fig. 10 shows a plan view of the spring 9. The spring 9
cull,~u,ia~s bent, meander-shaped sections 117 with curved
portions 17 which engage the slots 16 of the pressure cooker lid
3. The spring 9 can be a wire ring having ends in the form of
hooks 19. These hooks 19 also engage a slot 16 of the pressure
cooker lid 3. In addition, the spring 9 is wave-shaped as can be
seen in Figs. 11 to 14.
After introduction of food to be cooked into the pot 2, the
pressure cooker lid 3 can be placed thereon in any desired
position. In most cases, the lid segments 12 will come to rest on
the pot segments 4 as shown in Fig. 11. The valleys 118 of the
- 38 -
19518 305.3-16 - K~11 llios~ 1248
.

2~ 76876
.
wave structure of the wave-shaped spring 9 are p~ai~iol,ed in the
area of the lid segments 112. The sealing line 46 c,u, l~a,uOlldil 19
to the circ~",Ft~ "lidl sealing edge 21 is ~osiIk,"dd above the line
47 which COIl~:apOllda to the circu",r~ "lidl pouring rim 48 of the
pot (see Fig. 15). In this lid position, the pressure cooker pot 1 is
not yet sealed in the circ~ t" ," ' direction. When the pressure
cooker lid 3 is rotated in any desired direction, the pressure
cooker lid 3 glides with the lower surfaces of its lid segments 12
on the upper surfaces of the pot segments 4. As soon as the
pressure cooker lid 3 has reached the position of Fig. 12, in which
the lid se3ments 12 are congruent with the segment gaps 14 of
the pot segments 4, the pressure cooker lid 3 falls due to its own
weight into the pot 2 until the spring 9 rests on the pot segments
4. The sealing line 46 now intercepts the plane 49 which
COIl~ JOllda to the surface of the vertical projection 6. In this
position the pressure cooker pot 1 is still not sealed.
When the pressure cooker lid 3 is rotated further in any
desired direction, as is l~ d in Fig. 13, the curved ends 13
of the lid segments 12 in the direction of rotation glide with their
upper side onto the lower surface of the pot segments 4. The
spring 9 glides on the upper surFace of the pot segment 4 and is

- 39 -
195 1C 305.3-1C - Kad Ni~s~ - N 2~
~? .

21 76~76 7'
p~uylcs~h/~ ly tensioned. The pressure cooker lid 3 can be forced
by exterior force a ~ , in the .~ ...,.: d direction only to such
an extent until the meander-shaped part 50 (see Fig. 10) comes
to rest at the lower surface 51 of the sealing element 8 (see Fig.
15). In this position the sealing line 46 still intercepts the plane 49
so that the pressure cooker pot 1 is still not sealed.
As soon as the pressure cooker lid 3 reaches the position
according to Fig. 14, in which the pot segments 4 rest on the
middle sections 113 of the lid segments 12, the pressure cooker
lid 3 is forced by the force of the spring 9 in the upward direction
so that the upwardly curved ends 13 of the lid segments 12
engage the pot segments 4. In this position the valleys 118 of the
wave-shaped spring 9 act on the upper side of the pot segments
4. The sealing line 46 intercepts the plane 49 no longer so that
the pressure cooker pot is now tightly sealed and is in the desired
closed state.
In Figs. 15 and 16 the closed position is lc,~lcscl.~d in
detail. Fig. 15 shows the contact of the stamped projection 104
and the stamped projection 112 whereby the two stamped
~,.je~iol,s are forced against one another by the action of the
spring 9. The sealing element 8 rests with its sealing edge 21

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2 1 76~76
provided at the elastic sealing lip 20 in a sealing fashion at the
cylindrical surface 22 of the circu", rt~ wall 100 of the pot 2.
As can be seen in Fig. 16, the sealing edge 21 is posiliu"ed
above the vertical projection 6 so that the pot is Gul I Ip~ t~ ly closed
in the circ~"" t~ idl direction.
In Figs. 17 to 19 the pressure relief and venting valve 10 is
ae, ll~d which is mounted within an opening 120 of a stamped
d~ a~ivll 24 in the hood 7. In this opening 120 a rubber-elastic
insert 128 is inserted which is sUbaldll-- ~1~' c~""., i:,ed of an upper
cylindrical section 129 and a lower cylindrical selection 130. The
upper cylindrical section 129 engages the opening 120 and has a
greater inner diameter than the lower cylindrical section 130 which
extends into the interior of the lid. In the transition area between
the upper and the lower cylindrical sections 129, 130 an inserted
disc 25 is provided which serves as an abutment for a pressure
spring 26 which rests with its underside at a spring plate 30. A
sleeve 28 which is the valve body 27 extends through the rubber-
elastic insert 128 and supports at the exterior side of the lid a
perfu, disc 29 which is welded in the sleeve 28. A rotational
spring 31 is inserted into the sleeve 28. The end sections of the
spring 31 extends to the exterior so that the spring plate 30 is

- 41 -
195 18 305 3-16 - K rl Nltst . N 2',0

2 1 76876
supported thereat. The rotational spring 31 serves to secure the
rubber elastic valve ball 32 against falling out of the sleeve. At the
side facing the pt:, rul.~t~d disc 29, the sleeve 27 is bent outwardly
by forming a sealing edge 127 so that it comes to rest at the end
face or exterior surface 123 of the upper cylindrical section 129 of
the insert 128 which thus provides the valve seat 23. By
p,~t~ ,iul,;"~ the pressure spring 26, the sealing edge 127 of the
sleeve 27 is forced against the valve seat 23.
When heat energy is applied to the pot, steam is generated
within the pressure cooker pot 1 which first displaces the air
present within the pressure cooker pot 1 through the valve
opening 52 within the pe, rul~ ,d disc 29 of the pressure relief and
venting valve 10. When the steam d~ lu,u~c:~l increases, the
increased steam flow entrains the rubber-elastic valve ball 32 so
that it comes to rest at the valve opening 52 in a sealing manner.
This is ,~:~,r~ , ' in Fig. 18. From now on, pressure can be
built up within the pressure cooker pot 1.
Upon reaching the maximum allowable cooking pressure
this pressure acts against the valve body 27 of the pressure relief
and venting valve 10. As soon as this force is greater than the
p,~ siu"i"y force of the pressure spring 26, the valve body 27

- 42 -
1~5 18305.3-~6-K011ies~ 2~B

2 1 768 76
is lifted off the valve seat 23. The steam can thus be vented via
the resulting annular gap 125 bet~veen the upper cylindrical
section 129 of the insert 128 and the sleeve 27. A higher
pressure can thus not be produced.
In Figs. 20 to 22 the pressure i" 'vcnting device 11
is ,~ e, ~ in section. It is inserted into an opening 121 of a
stamped de,~leaaiOI~ 45 of the hood 7. A sleeve 33 extends
through the opening 121 and is provided at the exterior end with
a rubber-elastic pe, ru, disc 34. This pe, ru, ~led disc 34 covers
the stamped dep,e:,aiull 45 and rests with its rim on the upper
outer edge 145 of the stamped de~ulessiol~ 45. The upper outer
edge 145 of the stamped d~u,essiù,, 45 is provided with at least
one radially extending groove 53. Fulll,er",o,e the pélFul
disc 34 cu",uriaes a dG~LII. u'y extending cylindrical part 134
which at its end face is provided with spacing elements 135 in the
form of knobs. In the position r~pleael in Fig. 2û, these knobs
135 do not contact the hood 7. The external circumference of the
sleeve 33 is smaller than the diameter of the opening 121 so that
between sleeve 33 and depll:aaiull 45 an annular gap 136
remains.
Below the opening 121 the sleeve 33 has an inwardly

- 43 -
195 183063-16-K~rlNioso-N2~11

2 1 76~376 - :
projecting annular projection 35 which is engaged from the exterior
by a rolled .I;d,UIlldS~ 43 with its bead 44 which, in the position
St:ll' ' in Fig. 20, closes the annular gap 136. The rolled
did~ullldylll 43 extends at the exterior side of the sleeve 33 in the
., d direction and encloses the lower end 137 of a piston 37
movably supported within the sleeve 33. The piston 37 is forced
by a pressure spring 38 arranged in the sleeve 33 into the interior
of the pot. The pressure spring 38 is supported on the one hand
at the piston 37 and on the other hand at a spring plate 36 which
is, in turn, supported at the underside of the annular projection 35.
The outwardly projecting end 138 of the piston 37 supports a cap
42 with a bushing 39 having arranged at its outer side colored
rings 40, 41. The bushing 39 is supported in the position
,~p,t:se~ ;l in Fig. 20 at the upper side of the annular projection
35. The colored rings 40, 41 are not visible in the position of the
bushing 39 which it assumes when no pressure is present in the
pot; they are F " led within the perfu,~l~d disc 34. Since the
lower edge of the bushing 39 rests on the upper side of the
annular projection 35, the spring plate 36, piston 37, and pressure
spring 38 are prevented from falling out of the sleeve 33.
Since the rubber-elastic p~, rul~.t~,d disc 34 with its outer rim

- 44 -
~9C la30A3.~0-K~Niusll-NZ~O

~ 2 1 768 76
rests with p~ lsiul~ at the upper outer edge 145 of the stamped
projection 45, the sleeve 33 and wlth it the rolled dia,ullldylll 43
are pulled upwardly so that the upper surface of the
circull,' t~ idl rubber-elastic bead 44 rests sealingly at the
underside of the stamped de~ asiv~l 45 of the hood 7.
When the pressure within the cooking pot increases, the
steam pressure will act on the rolled did,UI 11 a~l 1 l 43 of the pressure
indicator/venting device 11 and force the piston 37 and with it the
bushing 39, the colored rings 40, 41, and the cap 42 against the
force of the pressure spring 38 in the upward direction. With
dsi~g pressure first the colored ring 40, for example, being
green, than the second colored ring 41, for example, being yellow,
and, s~ Ihse~u~ntly, upon reaching the maximum allowable cooking
pressure, the lower part of the bushing 39 which can be, for
example red, will appear above the rubber elastic disc 34. The
piston 37 in this position abuts the spring plate 36. This end
position is It:pl~a~ll ' in Fig. 21.
After culll,ul~l;ull of the cooking process, the pressure
cooker pot 1 can only be opened in a pressure-less state. For this
purpose, the cap 42 as shown in Fig. 22, is pushed :'c... dly
until the knobs 134 of the rubber-elastic p~, ~u, i -' disc 34 come

- 45 -
~95 18 305.3- ~6 - Kari Ni~s~ - H 2~
~1~
-

- 2~ 76876
to rest at the outer surface of the stamped d~ siol~ 45 of the
hood 7. C~"~:,uu".li"~ly the upper surface of the circ~"~ rt~
rubber-elastic bead 44 of the rolled .lidUIl~d~UIll 43 is lifted off the
underside of the stamped dep,~siu,, 45. This frees the annular
gap 136 and steam is vented to the exterior.
In Fig. 23 the pot 2 is l~ S~ll with a steamer insert 57
and a matching lid 55 in section. The details are ,~u,~:,e" - in
Figs. 24 and 25 whereby in Fi3. 24 the steamer insert has been
omitted. The steamer insert comprises a bottom 151 which has
a transition into a lower cylindrical portion 153 of the
circu",~ " wall 150. In the upward direction, the cylindrical
portion 153 has a transition portion 62 into an upper cylindrical
portion 152 which relative to the lower cylindrical portion 153, has
a greater diameter. The upper cylindrical portion 152 has an
upper edge 61 with which the steamer insert 52 rests on the rim
48 of the pot 2.
As can be seen in Fig. 25 the outer diameter of the lower
cylindrical wall section 159 of the lid 55 is slightly smaller than the
inner diameter of the cylindrical surface 56 of the upper cylindrical
portion 152 of the steamer insert. The outer diameter of the
cylinder surface of the upper cylindrical portion 152 of the steamer

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19518 305.3-~6 - K~d N~s4 - N 2~8

2 ~ 76~76
insert 57 is again s~" "_ . ' IdL smaller than the inner diameter of the
upper cylindrical surface 58 of the pot 2. The exterior diameter of
the widened portion 59 of the lid 55 is s~",~ ,dl smaller than the
inner diameter of the upper cylinder surface 58 of the pot 2 but
greater than the inner diameter of the upper cylindrical portion 152
of the steamer insert 57. The height of the wall section 159 of the
lid 55 is sized such that when its lower edge 60 rests on the pot
segments 4, as It~ Il ' in Fig. 24, the upper wall section 157
of its widened portion 59 is immersed partly in the pot 2.
However, when the steamer insert 57 is present and the transition
portion 158 of the widened portion 59 rests on the pouring rim 61
of the steamer insert 57, its lower edge 60 does not contact the
flange-like transition portion 62 of the steamer insert 57. The
steamer insert 57 rests with the lower surface of its pouring rim 61
on the pouring rim 48 of the pot 2 whereby the flange-like
transition portion 62 does not contact the pot segments 4 (see Fig.
25).
In Fig. 26 the pot 2 is ,~ , ' with a double boiler
insert 64 which is also embodied such that it .,oope, ' - with the
pot segments 4 and is secured thereat. With this double boiler
insert 64 the pot 2 is turned into a double boiler 63. A ring
- 47 -
19510 305.~-16 - Ko~l Nbso - N 248

2 1 75876
member 66 is welded to the upper portion of the cylindrical
circu", t:lltidl wall 160 of the double boiler insert 64 and above
the ring element 66 a sealing element 8 is arranged which
COI I _a~Jul Ids to the sealing element 8 disclosed in cv", It~ iUI~ with
Figs. 8 and 9. The sealing element 8 is secured between the
angled portion 68 of the ring 66 and the horizontal wall portion 161
of the widened portion 67 of the circ~", .~" wall 160 of the
si"""e,i"g insert 64. At the upper edge of the ring member 66
angled flaps 69 70 71 are arranged whereby their number
co"~,ondb to the number of pot segments 4 (see Figs. 27-32).
One of the angled flaps is the tab 70 co",u, i~i"g an elastic tongue
72 extending in the direction of closure as l~ aell~ ' in Fig. 27.
The elastic tongue 72 has at its free end an upwardly extending
projection 73. The pouring rim 74 of the insert 64 has at least
three pruj~:uliulls 75 uniformly distributed about the circumference
so that for the inserted double boiler insert 64 between the pouring
rim 74 and the pouring rim 48 of the pot an annular gap 76
remains. As can be seen in Fig. 29 the sealing element 8 is
arranged such that for the inserted double boiler insert 64 the
sealing line 46, uoll~::al~u~ l9 to the circu", ~:rltidl sealing edge
21, intercepts the plane 49 which corresponds to the surface of
- 48 -
195 18 3051-15 - K~rl Nies~ - N2~d
~.~

21 76876 -~
.
the vertical projection 6.
First the pot 2 is filled with a cert~in amount of water. Then
the double boiler insert 64 is inserted into the pot 2 such that the
flaps 69, 70, 71 come to rest within the segment gaps 14 of the
pot 2 (see Fig. 33). The double boiler insert 64 thus falls
u~r until the ~ .lly extending prujeutiol~s 75 of its
pouring rim 74 come to rest at the pouring rim 48 of the pot 2.
Now the double boiler insert 64 is turned to the right. Thus, the
securing flap 69 glides under the cur.t:,~.o, " ,g pot segment 4 in
order to prevent that upon removing the double boiler insert 64
from the pot 2 the tongue 72 would be bent. When the double
boiler insert 64 is further turned in the same direction, the
projection 73 glides under the G~ ,uolldil lg pot segment 4
whereby the elastic tongue 72 is tensioned in the du.:,l.. .1
direction as shown in Fig. 35. Finally, the flap 71 comes into
contact with the col.t:,pol,~i"g pot segment 4 so that the
projection 73 driven by the elastic tongue 72 engages behind the
cu,,t:~,uùlldi.~ pot segment 4 tsee Fig. 36). The double boiler
insert 64 is thus arrested within the pot 2 and the sealing line 46
intercepts the plane 49, as shown in Fig. 29.
When heat energy is supplied to the double boiler pot, the
- 49 -
195 18 305 3~ K rl Nlts - N 2~

21 76~76
water within the hollow space 77 between the pot 2 and the
double boiler insert 64 is brought to a boil. The resulting steam
can exit through the gap 78 (see Fig. 29) between the sealing
edge 21 and the vertical projection 6 and finally through the
annular gap 76 Since the gap 78 is present within the area of the
pot handles of the pot, it is ensured that upon emptying the double
boiler no water can be poured out of the hollow space 77 between
pot 2 and double boiler insert 64. The removal of the double
boiler insert 64 is carried out in the reverse order.
In Fig. 37 a pot with inserted cutting insert is shown in a
plan view. The cutting insert .,o~ ib~s a cutting disc 80 which is
provided at its inner area with cutting elements or blades 88. In
addition, further cutting blades 89 for coarse slicing can be
provided. On the cutting disc 80 a turntable 81 with a turn grip 82
and a push member 83 are provided. The cutting disc 80 is
provided with flaps extending upwardly (84) and ~'~. .,. dly (85)
numbering twice the number of the pot segments and distributed
over the circumference in a uniform pattern. They have a size so
that they ft into the segment gaps 14 of the pot 2. Between the
flaps 84, 85 angled stays 86 are arranged which also alternate
upwardly and ~ Iy. At the center of the cutting disc 80 a

- 50 -
1~5 18 305.3-16 - K~d Ni~ N 2~0
(.3

2~ 7~87~
hole 94 is proYided and at the center of the turntable 81 a cup 95
is provided which extends :..., u!~. Its outer diameter is of a
size such that it is received with minimal play within the hole 94.
The edge of the tumtable 81 is provided in the circu", t:lllial
direction with a beaded edge 96. The outer diameter of the
beaded edge 96 is of such a size that it rests with minimal play at
the inner side of the respective stay 86. Applo,.i,ll 'y centrally
in the radial direction between the cup 95 and the beaded edge ~6
a channel 97 is provided. The turn grip 82 is rotatably supported
with minimal play at the feed channel ~77. The push member 83
glides with minimal play within the feed channel 97 and in the
upper part of the turn grip 82 and is closed at the top by a snap-
on lid 98.
The respective cutting disc 80 selected for a specific
'i 7 is placed into the pot 2 such that the area of the
upwardly projecting flaps 84 rest on the pot segments 4 while the
..... d'y extending flaps 85 are F: ~d in the segment gaps
14 of the pot 2. .SIlhsegllently the turntable 81 is placed onto the
cutting disc 80 such that the cup 95 comes to rest in the hole 94
whereby the lower side of the beaded edge 96 rests on the cutting
disc 80. Then the turn knob 82 is ~G~i~ioi1ed on the feed chânnel
- 51 -
195 t83053-15-1~81tN~s~-N2~8
.~

2~ 76876
97. The makrial to be cut is then introduced, if necessary cut into
smaller pieces, in the longitudinal direction into the channel 97.
Then the push member 83 is inserted into the channel 97 and
pushed in the downward direction. One hand grips the push
member 83 and the turn grip 82 and rotates in the shown
JOd;~ to the right while simultaneously pressing downward
the tumtable 81. Thus, the material to be cut is guided in a
circular path across the cutting surface 87. The material to be cut,
d~pe,~ on the used cutting disc, is thus shredded, sliced, or
cut and falls directly into the pot 2.
The present invention is, of course, in no way restricted to
the specific disclosure of the sl,e~ , and drawings, but also
el~c~"~,asses any " " 'i~ r,~ within the scope of the appended
claims.

- 52 -
195 1e 105.3-16 - Kerl Niose - N 2~18

21 76876 ---
R~F~.~n~t: Numerals
Pressure cooker pot
2 Pot
3 Pressure cooker lid
4 Pot segment
Band
6 Vertical Projection
7 Hood
8 Sealing element
9 Spring
Pressure relief and venting valve
11 Pressure indicator/venting device
12 Lid segment
13 End of lid segment
14 Gap between segments
1 5 Gap
16 Slot
17 Curved portion
1 9 Hook
Sealing lip
21 Sealing edge
--5
195 18 305 3-18 - K~r/ Nb5~ - H 2~8
~.~S

21 76876
22 Cylindrical surface
23 Valve seat
24 Stamped dep, tac~;~)l I
Disc
26 Pressure spring
27 Valve body
28 Sleeve
29 r~. ~ul -~ disc
3û Spring plate
31 Rotational spring
32 Valve ball
33 Sleeve
34 r~. ~, disc
Annular projection
36 Spring plate
37 Piston
38 Pressure spring
39 Bushing
40, 41 Colored rings
42 Cap
43 Rolled ,lialJl"a~",
,5~
1D5 18 305 3-16 ' K~rl Nl ~St . N 2~0

21 76876
.
44 Bead
Stamped dt~ c.;o
46 Sealing line
47 Line
48 Pouring rim
49 SurFace
Meander-shaped part
51 Lower surface
52 Valve opening
53 Radially extending groove
Lid
56 Cylindrical surface
57 Steamer insert
58 Cylindrical surface
59 Widened portion
Edge
61 Rim
62 Transition portion
63 Double boiler
64 Double boiler insert
66 Ring member
~5~C
195 18 30a3- 16 - K~11 Nios~ N 218

21 76876
.
67 Widened portion
68 Angled portion
ô9 Securing flap
70, 71 Outwardly extending tab
72 Tongue
73 Projection
74 Pouring rim
Projections
76 Annular gap
77 Hollow space
78 Gap
Cutting disc
81 Tumtable
82 Turn grip
83 Push member
84, 85 Flap
86 Stay
88, 89 Cutting blade
94 Hole
Cup
96 Beaded edge
1~5 18 305 3-15 - Kd Nlese - N 2~â

21 7687~
97 Feed channel
98 Lid
100 Circ~ idl wall
1 02 Recess
104 Integral stamped projection
105 Pot handle
110 Cylindrical lid wall
111 Lid handle
112 Stamped projection
113 Center portion of stamped projection
114 Horizontal transition section
11 7 Meander-shaped sections
118 Valley of wave
120 Opening of hood
121 Opening of hood
123 Outwardly facing end face
125 Annular gap
127 Sealing edge
128 Rubber-elastic insert
129 Upper cylindrical section
130 Lower cylindrical section
"~
19518 30~.3-1~ . K~rl Nbs~ 2~8

Representative Drawing
A single figure which represents the drawing illustrating the invention.
Administrative Status

For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee  and Payment History  should be consulted.

Administrative Status

Title Date
Forecasted Issue Date Unavailable
(22) Filed 1996-05-17
(41) Open to Public Inspection 1996-11-19
Examination Requested 2003-04-17
Dead Application 2006-05-17

Abandonment History

Abandonment Date Reason Reinstatement Date
2005-05-17 FAILURE TO PAY APPLICATION MAINTENANCE FEE

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Application Fee $0.00 1996-05-17
Maintenance Fee - Application - New Act 2 1998-05-19 $50.00 1998-03-31
Maintenance Fee - Application - New Act 3 1999-05-17 $50.00 1999-04-16
Maintenance Fee - Application - New Act 4 2000-05-17 $50.00 2000-03-09
Maintenance Fee - Application - New Act 5 2001-05-17 $75.00 2001-03-15
Maintenance Fee - Application - New Act 6 2002-05-17 $75.00 2002-03-01
Request for Examination $200.00 2003-04-17
Maintenance Fee - Application - New Act 7 2003-05-19 $75.00 2003-04-17
Maintenance Fee - Application - New Act 8 2004-05-17 $100.00 2004-05-12
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
NIESE, KARL
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Representative Drawing 1998-05-07 1 12
Abstract 1996-06-05 1 21
Description 1996-06-05 58 2,594
Claims 1996-06-05 14 614
Drawings 1996-06-05 19 584
Description 1996-05-17 58 1,156
Cover Page 1996-05-17 1 12
Claims 1996-05-17 14 274
Drawings 1996-05-17 19 269
Abstract 1996-05-17 1 15
Fees 2000-03-09 1 49
Fees 2003-04-17 1 50
Assignment 1996-05-17 6 207
Prosecution-Amendment 2003-04-17 1 67
Correspondence 1996-06-05 96 3,654
Fees 1999-04-16 1 56
Fees 2002-03-01 1 54
Fees 2001-03-15 1 52
Fees 1998-03-31 1 55
Fees 2004-05-12 1 51