Language selection

Search

Patent 2089828 Summary

Third-party information liability

Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.

Claims and Abstract availability

Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:

  • At the time the application is open to public inspection;
  • At the time of issue of the patent (grant).
(12) Patent: (11) CA 2089828
(54) English Title: GRIPPER FOR A CONVEYING DEVICE FOR CONVEYING SINGLE-SHEET OR MULTIPLE-SHEET PRINTED PRODUCTS
(54) French Title: PINCE POUR DISPOSITIF SERVANT A TRANSPORTER DES IMPRIMES A UNE SEULE OU A PLUSIEURS FEUILLES
Status: Expired
Bibliographic Data
(51) International Patent Classification (IPC):
  • B65H 5/14 (2006.01)
  • B65H 29/04 (2006.01)
(72) Inventors :
  • WEBER, BRUNO (Switzerland)
  • EBERLE, JURG (Switzerland)
(73) Owners :
  • FERAG AG (Switzerland)
(71) Applicants :
(74) Agent: GOWLING LAFLEUR HENDERSON LLP
(74) Associate agent:
(45) Issued: 1999-02-16
(22) Filed Date: 1993-02-18
(41) Open to Public Inspection: 1993-08-20
Examination requested: 1993-02-18
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data:
Application No. Country/Territory Date
00 496/92-0 Switzerland 1992-02-19

Abstracts

English Abstract



The two gripper parts (5, 6) of a gripper are
mounted so as to be pivotable on a shaft (12) which, in
turn, is mounted rotatably in a holder (13). Connected
to this shaft (12) so as to be fixed against rotation
is closing lever which bears at its end a follower
roller which interacts with fixed closing links.
Furthermore, a resting part (16) for a compression
spring (18) is connected to the shaft (12) via a
spreader ring (17) so as to be fixed against rotation.
This compression spring (18) is supported at its other
end on a bearing part (5) which is integral with the
one gripper part (5). A pivot movement of the closing
lever results in a corresponding clockwise pivoting of
the resting part (16), as a result of which pivoting of
the one gripper part (5) into the clamping position is
brought about via the compression spring (18). This one
gripper part (5) is blocked in its clamping position in
which the compression spring (18) is compressed and
exerts a corresponding clamping force.


French Abstract

Les deux doigts (5, 6) d'une pince sont montés de façon à pouvoir pivoter sur un axe tournant (12) qui est monté à son tour dans un support (13). Un levier de fermeture est raccordé à l'axe (12) de façon à ne pas pouvoir tourner; ce levier porte à son extrémité un galet suiveur qui coopère avec des biellettes de fermeture fixes. Par ailleurs, une coupelle (16) de ressort de compression (18) est montée sur l'axe (12) au moyen d'un anneau à expansion (17) de façon à être solidaire dudit axe. Le ressort de compression (18) prend appuipar par son autre extrémité sur une portée (5) qui fait partie intégrante du doigt (5). Le pivotement du levier de fermeture entraîne la rotation en sens horaire de la portée (16), ce qui a pour effet, par l'intermédiaire du ressort de compression (18), de faire pivoter le doigt (5) vers sa position de fermeture. Ce doigt (5) est bloqué en position de fermeture où le ressort de compression (18) est comprimé et exerce une force de pinçage correspondante.

Claims

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


CLAIMS

1. A gripper for a conveying device for conveying single-sheet or
multiple-sheet printed products, such as newspapers, magazines and parts
thereof, comprising:
a) a first gripper part and a second gripper part which can be moved
relative to one another, the first gripper part being mounted to
pivot about a pivot axis such that it can be pivoted from an open
position to a clamping position in which it interacts with the
second gripper part to clamp a printed product under a spring
force;
b) a pivotably mounted closing lever which interacts with a fixed
closing cam arranged along the path of travel of the gripper to
pivot the first gripper part into the clamping position;
c) a locking device for blocking the first gripper part in its clamping
position, the locking device being releasable by a stationary
opening arrangement along the path of travel of the gripper,
d) a further gripper part which is coupled to the closing lever for
common pivotal movement with the closing lever; and
e) a spring element which is arranged between the first gripper part
and the further gripper part which is coupled with the closing
lever for common pivotal movement, the spring element being
tensioned during the closing movement of the gripper, the spring
element transmitting the pivot movement of the closing lever to
the first gripper part, and the spring element generating the
closing force when the first gripper part is blocked in its clamping
positions.

2. The gripper according to claim 1 comprising a rotatably mounted
shaft to which both the closing lever and the further gripper part are fixedly
connected against rotation, and on which the first gripper part is pivotably
mounted.

3. The gripper according to claim 2 wherein the further gripper part
comprises a rest for one end of the spring element, and the spring element

comprises a compression spring and acts with its other end on the first gripper
part.

4. The gripper according to claim 3 comprising a bearing part
connected to the first gripper part, wherein the other end of the compression
spring bears on the bearing part.

5. The gripper according to claim 2 wherein the second gripper part
is mounted so as to be pivotable on the rotatably mounted shaft whose
longitudinal axis forms a common pivot axis of the two gripper parts.

6. The gripper according to claim 1 wherein the closing lever
comprises a follower member which interacts with a fixed closing cam.

7. The gripper of claim 6 wherein the follower member comprises a
roller rotatably mounted on the closing lever.

8. The gripper according to claim 4 comprising a positioning follower
member coupled to the second gripper part which interacts with a fixed
positioning link for holding the second gripper part in a particular position.

9. The gripper according to claim 8 wherein the positioning follower
member comprises a rotatably mounted roller.

10. The gripper according to claim 2 wherein the locking device
comprises a pivotably mounted locking lever which acts on the rotatably
mounted shaft, to block the first gripper part in its clamping position, and
which can be pivoted into a release position by an opening arrangement.

11. The gripper according to claim 2 wherein the locking device
comprises a pivotably mounted locking lever which acts on a blocking part,
which is fixed against rotation with the rotatably mounted shaft, to block the
first gripper part in its clamping position, and which can be pivoted into a
release position by an opening arrangement.

12. The gripper according to claim 11 wherein the blocking part is
constructed as an arm which is integral with the locking gear.

13. The gripper according to claim 11 comprising a rotatably mounted
roller provided on the locking lever such that an opening arrangement can be
brought into action on the roller, and the axis of rotation of the roller running
approximately coaxially with the pivot axis of the two gripper parts in the
blocking position of the locking lever.

14. The gripper according to claim 11 wherein the axis of rotation of
the positioning follower roller runs approximately coaxially with the pivot axisof the locking lever.

Description

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


f~d 2 8
Grip~er for a conveying device for conveying single-
sheet or multiple-sheet Printed ~roducts

The present invention relates to a gripper for
a conveying device for conveying single-sheet or
multiple-sheet printed products, such as newspapers,
magazines and parts thereof, according to Claim 1.
Preferred further developments of the gripper
according to the invention form the subject-matter of
the dependent claims.
Exemplary embodiments of the subject-matter of
the invention are explained in detail below with refer-
ence to the purely diagrammatical drawing, in which:
Figure 1 shows a lateral view of a conveying device
for carrying printed products away in the
transfer region,
Figures 2 and 3 show a gripper of the conveying device
according to Figure 1 in the open and closed
states respectively,~0 Figure 4 shows a plan view of a gripper according to
Figures 2 and 3, partially in section along
the line IV-IV in Figure 5,
Figure 5 shows a section along the line V-V in Figure
4,
Figure 6 shows a lateral view of the gripper in the
direction of the arrow A in Figure 4,
Figures 7 and 8 show a gripper in an illustration
corresponding to Figures 2 and 3 in a
different pivot position in the open and
closed states respectively, and
Figures 9-12 show different conveying devices with a
different arrangement of the grippers.
Figure 1 shows the transfer region of a convey-
ing device 1 which has grippers 2 which are fastened at
regular intervals to a continuous link chain (not
shown) guided in a chain duct 3. Said link chain is
guided over a deflection wheel 4 in the transfer

89828
-- 2 --
region. The grippers 2 move in the direction of the
arrow B along a closed circulation path.
Each gripper 2, whose construction and mode of
functioning will be described in detail with reference
to Figures 2-6, has a first gripper part 5 and a second
gripper part 6. In the opened state of the grippers 2,
the two gripper parts 5, 6 define a gripper opening 7
which faces towards the rear relative to the conveying
direction B in the conveying device according to Figure
10 1.
Each gripper 2 grips a printed product 8 at its
leading edge 8a (fold edge). The printed products 8 are
fed in the direction of the arrow C by a belt conveyor
9 in a manner known per se in an imbricated formation
S. As can be seen in Figure 1, each printed product
lies in this imbricated formation S on the preceding
printed product 8. A pressure roller 10 lies loosely on
the printed products 8 fed by the belt conveyor 9.
The construction of the grippers 2 is now
explained in detail below with reference to Figures
2-4.
The second gripper part 6 is of integral con-
struction with a bearing part 11 which is mounted so as
to be pivotable on a shaft 12 whose longitudinal axis
is denoted by 12'. As emerges, in particular, from
Figures 5 and 6, this shaft 12 is provided with longi-
tudinal grooYes. The shaft 12 is mounted rotatably in a
holder 13 which is U-shaped in cross-section and is
fastened to a link chain 13 which is guided in the
guide duct already mentioned. This link chain 14 is of
known design and is very similar to the link chain such
as is described, for example, in DE-A-2,629,528 or the
corresponding document US-A-4,294,345. Figure 4 shows
in each case half of a link chain 14 of a lighter con-
struction and of a link chain 14' of heavierconstruction.
The first gripper part 5 is likewise of
integral construction with a bearing part 15 which is
arranged inside the holder 13 and i8 mounted so as to



be pivotable on the shaft 12. The longitudinal axis 12'
of this shaft 12 thus forms the common pivot axis for
the bearing parts 11, 15 and thus for the gripper parts
6 and 5. A resting part 16 is connected to the shaft 12
so as to' be fixed against rotation, specifically via a
spreader ring 17 which is integral with the resting
part 16 and engages with projections in the longitu-
dinal grooves of the shaft 12 (Figure 5). Supported on
the resting part 16 is a compression spring 18 which is
supported at the other end on a journal 19 which is
inserted in the bearing part 15 for the first gripper
part 5. As can readily be seen in Figure 5, a rotary
movement of the shaft 12 in an anticlockwise rotary
movement, i.e. in the direction of the arrow F, is
transmitted via the compression spring 18 to the bear-
ing part 15 and thus the first gripper part 5, which
results in pivoting of the first gripper part 5 from
the open position shown in Figures 2 and 5 into the
clamping position illustrated in Figure 3.
Connected to the shaft 12 so as to be fixed
against rotation is a closing lever 20 whose pivot axis
20' coincides with the longitudinal axis; 12' of the
shaft 12. At its free end, the closing lever 20 bears a
follower roller 21 which is freely rotatable about the
axis of rotation 21'. The closing lever 20 is provided
with a projecting blocking arm 22. The closing lever 20
is now arranged in such a way that the connecting line
denoted by 23 between the pivot axi~3 20' and the axis
of rotation 21' of the follower roller 21 runs trans-
versely to the direction of movement B or B' of the
grippers 2 (Figure 2). Furthermore, together with the
plane D which is formed by the flat first gripper part
5, this connecting line 23 forms an angle ~ which i~
less than 90~ (Figure 2). This is important so that the
first gripper part 5 can be moved from the open posi-
tion into the clamping position during a movement in
both directions of movement B and B'.
For blocking the first gripper part 5 in its
clamping position, there is a locking device which has

~Y~2~
-- 4 --
a locking lever 24 which is mounted on the bearing part
11 90 as to be pivotable about the axis 24'. This lock-
ing lever 24 has at one end a blocking projection 25
which interacts with the blocking arm 22 on the closing
lever 20 to lock the first gripper part 5, as is shown
in Figure 3. The locking lever 24 is pivoted by means
of a spring 26 into its blocking position and held
therein. At the other end, the locking lever 24 has a
follower roller 27 which is mounted so as to be freely
rotatable about the axis of rotation 27'. In the block-
ing position of the locking lever 24, the axis of
rotation 27' of this follower roller 27 is flush with
the longitudinal axis 12' of the shaft 12. It is
ensured by this arrangement that release of the locking
lever 24, i.e. pivoting into its release position by an
unlocking force P acting on the follower roller 27
(Figure 3), is ensured in all pivot positions of the
gripper 2.
Arranged on the bearing part 11 for the second
gripper part 6 on the side opposite the locking lever
24 is a positioning follower roller 28 which is mounted
so as to be freely rotatable about the axis 28'. In
this case, the axis of rotation 28' is flush with the
pivot axis 24' of the locking lever 24. The positioning
follower roller 28 interacts with positioning links 29,
by means of which the pivot position of the second
gripper part 6 and thus of the open and closed gripper
2 is- defined. This second gripper part 6 is pivotable
between two end positions which enclose with one
another an angle of about 90~. One end position of the
second gripper part 6 is illustrated in Figures 2 and
3, in which this second gripper part 6 runs approxi-
mately in the direction of movement B, B' of the
grippers 2. In the other end position shown in Figures
7 and 8, the second gripper part 6 extends approxi-
mately perpendicular to the direction of movement B, B'
of the grippers 2. By means of these end positions of
the second gripper part 6, the end positions of the
open and closed gripper are also defined, which gripper

2 8
-- 5 --
can assume any intermediate position depending on the
design of the positioning links 29. It should also be
mentioned in this context that the second gripper part
6 defining a plane E (Figure 2) is offset relative to
the common pivot axis 12' of the two gripper parts 5,
6. In other words, the said plane E runs with spacing
from this common pivot axis 12', as can readily be seen
in Figure 2.
For closing the grippers 2, there are fixed
closing links 30 which act on the follower roller 21 of
the closing lever 20 and bring about pivoting of the
latter in the closing direction, i.e. anticlockwise in
the illustration according to Figure 2. These closing
links 30 can be constructed in a manner known per se to
correspond to the particular requirements. These clos-
ing links 30 are illustrated only diagrammatically in
the figures.
With reference to the closing links indicated
by 30a and 30b in Figure 2, it is to be made clear that
the gripper 2 can be closed in both conveying direc-
tions B and B' by virtue of the arrangement and con-
struction of the closing lever 20 described above. If
the gripper is moved in the direction of the arrow B,
the closing link 30a is to be provided. If, in con-
trast, the gripper 2 is moved in the opposite direction
B', the closing link is to be constructed as indicated
by 30b.
The mode of functioning of the gripper 2 is now
explained below with reference to Figures 2 and 3.
Prior to closing the gripper 2, the latter,
i.e. the second gripper part 6, is moved by the posi-
tioning link 29 into the desired product-receiving
position and held therein (Figure 2). To pivot the
first gripper part from the open position into the
clamping position, the closing link 30 (30a or 30b
respectively) begins to act on the follower roller 21
on the closing lever 20 which is thus pivoted anti-
clockwise. This results in a corresponding rotation of
the shaft 12 and thus also of the resting part 16. This

~8~.2~
- 6 -
rotary movement of the resting part 16 is transmitted
via the compression spring 18 to the bearing part 15 of
the first gripper part 5, as a result of which the
latter is pivoted towards the clamping position. When
the closing lever 20 has now reached a position denoted
by the connecting line 23a in Figure 3, the first
gripper part 5 comes into contact with the second
gripper part 6. In this position, the compression
spring 18 already exerts a certain clamping force. In
this position of the closing lever 20, the blocking arm
22 also already begins to run up against the blocking
projection 25 of the locking lever 24. When the closing
lever 20 is rotated further, the locking lever 24 is
now pressed back out of the blocking position by the
blocking arm 22, continuing to act on the blocking pro-
jection 25, counter to the force of the spring 26, i.e.
is pivoted anticlockwise. When the closing lever 20 has
now reached its end position denoted by the connecting
line 23 in Figure 3, locking of the closing lever 20 is
effected by the blocking projection 25 of the locking
lever 24 acting on the blocking arm 22. This means
that, for locking the first gripper part 5 in its
clamping position, the closing lever 20 has to travel
only a short way which is illustrated in Figure 3 by
the pivot angle ~. During the pivoting of the closing
lever 20 through the abovementioned angle ~, the com-
pression spring 18 is compressed, which obviously
results in the clamping force exerted by the first
gripper part 5 being increased accordingly. The magni-
tude of this clamping force also depends on the thick-
ness of the printed product 8 clamped between the
gripper parts 5, 6.
The short pivot path (angle ~), as mentioned,
which the closing lever 20 has to travel until it is
locked, is possible because the compression spring 18
already exerts a clamping force, as already mentioned,
as soon as the first gripper part 5 comes into contact
with the second gripper part 6 or with the printed

- 7 _ ~ 2 ~
product 8 to be gripped which has run into the gripper
opening 7.
To unlock the closing lever 2 0 and thus the first
5 gripper part 5, i.e. to open the gripper 2, an opening
arrangement comprising fixed opening links (not shown in
Fig. 3) is provided which acts on the follower roller 27 of
the locking lever 24 thus exerting an unlocking force P on
the follower roller 27, causing the locking lever 24 to be
pivoted anticlockwise. After a short pivot path (small
pivot angle ~ in Figure 3), the blocking projection 25 is
released from the blocking arm 22 on the closing lever 20
which is pivoted clockwise under the effect of the
compression spring 18 becoming relaxed. As soon as the
15 blocking arm 22 is outside the range of action of the
blocking projection 25 and the unlocking force no longer
acts on the follower roller 27, the locking lever 24 is
pivoted back into its blocking position again by the spring
26.
In illustrations corresponding to Figures 2 and 3,
Figures 7 and 8 show a gripper 2 in the other end position
in which the second gripper part 6 runs approximately
perpendicular to the direction of movement B, B' of the
gripper 2. The gripper 2 is moved into this end position
25 by a correspondingly constructed positioning link 29 which
differs in construction from the positioning link 29 in
Figures 2 and 3. Figure 7 shows the first gripper part 5
in its extreme open position in which it is held by a
holding-open link 31 which interacts with the follower
roller 21 on the closing lever 20.
The closing, locking and opening of the gripper 2 are
effected in the end position illustrated in Figures 7 and
8 in the same manner as described with reference to Figures
2 and 3, in which case, however, the different links must
35 be constructed accordingly, as mentioned.
It can be seen by comparing Figures 2 and 3 with
Figures 7 and 8 that the grippers 2 can be opened and
closed in both end positions and thus also in any
intermediate position, specifically irrespective to

-- 8
whether they are moved in the direction of the arrow B or
in the direction of the arrow B'.
With reference to Figures 9-12, different
possibilities of use of the grippers 2 are now described,
as have been explained in conjunction with Figures 1-8.
In the embodiment according to Figure 9, the printed
products 8 are brought in a suspended position by a feed
conveyor 32 and are taken over and conveyed further by a
delivery conveyer 33. As described with reference to
Figures 7 and 8, the grippers 2 of the feed conveyor 32 are
held by positioning links 29 in an end position in which
the second gripper part 6 runs approximately perpendicular
to the conveying direction approximately perpendicular to
the conveying direction G of the feed conveyor 32. The
grippers 2 of the delivery conveyor 3, which are moved in
the same direction G, are likewise held in this end
position, but the gripper opening 7 is directed upwards and
the second gripper part 6 forms the trailing part of the
grippers 2.
The printed products 8 held in the region of their one
edge 8a by the grippers 2 of the feed conveyor 32 are
gripped at the opposite edge 8b by the grippers 2 of the
delivery conveyor 3. As soon as the printed products 8 are
clamped in the grippers 2 of the delivery conveyor 3, the
grippers 2 of the feed conveyor 32 are opened by means of
an opening arrangement 34 which has an opening link 35
which acts on the follower roller 27 on the locking lever
24.
The locking device 24, 25, the first gripper part 5
and the stationary opening arrangement 34, 35 can be
referred to, in general terms, as "a locking device for
blocking the first gripper part in its clamping position,
the locking device being releasable by a stationary opening
arrangement along the path of travel of the gripper.
The embodiment according to Figure 10 is very similar
to that according to Figure 9 and differs from the latter
by a different position of the grippers 2 during transfer
of the printed products 8. In the embodiment according to
Figure 10, the gripper openings 7 are namely not directed
downwards or upwards, but obliquely towards the rear in the
feed conveyor 32 and obliquely towards the front in the
delivery conveyor 33.
The embodiment shown in Figure 11 is related to a
certain extent to the embodiment according to Figure


g
1. ~owever, in contrast to the variant according to
Figure 1, the printed products 8 fed by the belt
conveyor 9 in an imbricated formation S are not gripped
at the leading edge 8a, but at the trailing edge 8b.
This requires a different position of the grippers 2 in
the transfer region than in the embodiment shown in
Figure 1. In Figure 11, 36 shows a guide for the
printed products 8.
In the embodiment according to Figure 12 which
is similar to that according to Figure 1, the belt con-
veyor 9 brings the printed products 8 in an imbricated
formation S' in which each printed product 8 lies on
the following printed product. This means that the
leading edges 8a of the printed products 8 lie at the
bottom in the imbricated formation S'.
The printed products 8 are gripped by the con-
veying device lb at this leading edge 8a. This means
that the gripper openings 7 must point towards the rear
in the transfer region.
It can readily be seen in Figure 1 and in
Figures 9-12 that the same gripper construction as was
described with reference to Figures 2-8 can be used for
conveying devices 1, la, lb, 32, 33 with different
tasks. By virtue of their special construction, the
grippers 2 can be moved into different pivot positions
and can be closed and opened satisfactorily in any
pivot position without requiring constructive adapta-
tions of the grippers 2 to the respective purpose. It
is understood that the positioning links 29, the open-
ing links 35 and any holding-open links 31 must be
adapted to the particular purpose of the conveying
devices. The corresponding links are indicated diagram-
matically in Figures 9-12.
A further advantage of the gripper construction
described is that the grippers 2 can be made and
assembled in a simple manner. The two gripper parts 5
and 6, together with their bearing parts 11 and 15
respectively can be made of plastic, which results in a
light construction. Since the closing force is

-lo- ~U~ 28
primarily applied by the compression spring 18, the
first gripper part 5 only has to have a limited flexi-
bility. In order to secure the shaft 12 against dis-
placement in the direction of its longitudinal axis
12', the shaft 12 is provided in the region of the
spreader ring 17 with a circumferential groove in which
a rib on the inside of the spreader ring 17 engages in
the manner of a snap-on connection in the assembled
state. This easy-assembly solution obviates the need
for mounting separate securing rings or the like.
It is also conceivable to connect the first
gripper part 5 to the shaft 12 directly via a spring
element which bears the first gripper part 5 at one end
and is connected to the shaft 12 at the other end. This
spring element then forms both the bearing part for the
first gripper part 5 and the closing spring which is
stressed when the gripper is closed. Such an embodiment
is described, for example, in DE-A-3,102,242 and the
corresponding document US-A-4,381,056.
Instead of fastening the grippers 2 at fixed
intervals on a link chain 14, as shown with reference
to Figure 4, it is also possible to mount them on bear-
ing elements which, though coupled to one another, can
be varied, however, in their spacing. Such a solution
with bearing elements which can be varied in their
spacing is described, for example, in EP-A-0,323,557
and the corresponding document US-A-5,007,629.

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 1999-02-16
(22) Filed 1993-02-18
Examination Requested 1993-02-18
(41) Open to Public Inspection 1993-08-20
(45) Issued 1999-02-16
Expired 2013-02-18

Abandonment History

There is no abandonment history.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Application Fee $0.00 1993-02-18
Registration of a document - section 124 $0.00 1993-08-24
Maintenance Fee - Application - New Act 2 1995-02-20 $100.00 1995-01-16
Maintenance Fee - Application - New Act 3 1996-02-19 $100.00 1996-01-22
Maintenance Fee - Application - New Act 4 1997-02-18 $100.00 1997-01-22
Maintenance Fee - Application - New Act 5 1998-02-18 $150.00 1998-02-02
Final Fee $300.00 1998-10-26
Maintenance Fee - Application - New Act 6 1999-02-18 $150.00 1999-01-19
Maintenance Fee - Patent - New Act 7 2000-02-18 $150.00 2000-01-14
Maintenance Fee - Patent - New Act 8 2001-02-19 $150.00 2001-01-15
Maintenance Fee - Patent - New Act 9 2002-02-18 $150.00 2002-01-18
Maintenance Fee - Patent - New Act 10 2003-02-18 $200.00 2003-01-21
Maintenance Fee - Patent - New Act 11 2004-02-18 $250.00 2004-01-19
Maintenance Fee - Patent - New Act 12 2005-02-18 $250.00 2005-01-18
Maintenance Fee - Patent - New Act 13 2006-02-20 $250.00 2006-01-24
Maintenance Fee - Patent - New Act 14 2007-02-19 $250.00 2007-01-23
Maintenance Fee - Patent - New Act 15 2008-02-18 $450.00 2008-01-23
Maintenance Fee - Patent - New Act 16 2009-02-18 $450.00 2009-01-26
Maintenance Fee - Patent - New Act 17 2010-02-18 $450.00 2010-02-04
Maintenance Fee - Patent - New Act 18 2011-02-18 $450.00 2011-02-03
Maintenance Fee - Patent - New Act 19 2012-02-20 $450.00 2012-02-02
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
FERAG AG
Past Owners on Record
EBERLE, JURG
WEBER, BRUNO
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

To view selected files, please enter reCAPTCHA code :



To view images, click a link in the Document Description column. To download the documents, select one or more checkboxes in the first column and then click the "Download Selected in PDF format (Zip Archive)" or the "Download Selected as Single PDF" button.

List of published and non-published patent-specific documents on the CPD .

If you have any difficulty accessing content, you can call the Client Service Centre at 1-866-997-1936 or send them an e-mail at CIPO Client Service Centre.


Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Cover Page 1993-12-04 1 18
Cover Page 1999-02-11 2 75
Abstract 1993-12-04 1 26
Claims 1993-12-04 3 104
Drawings 1993-12-04 10 350
Description 1993-12-04 10 478
Description 1998-03-11 10 484
Claims 1998-03-11 3 94
Representative Drawing 1999-02-11 1 16
Correspondence 1998-10-26 1 29
Fees 1997-01-22 1 42
Fees 1996-01-22 1 44
Fees 1995-01-16 1 52
Prosecution Correspondence 1993-02-18 8 339
Examiner Requisition 1995-10-20 2 76
Prosecution Correspondence 1996-04-01 1 30
Prosecution Correspondence 1996-04-01 1 61
Examiner Requisition 1997-07-22 2 49
Prosecution Correspondence 1998-01-21 3 102
Correspondence Related to Formalities 1993-05-21 1 26
Office Letter 1993-05-07 1 35