Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
~ JJN-l~9C 11:~7 Sh~ ERC:OI_KS P~IT RTT rJ~lD~ ~l 3 7913160 P,1~4
2 ~ 7 ,~ -3 ~ ~
E: "~ATT3R ~5P~TE1R'
L~ OF TH~ VEN~xON:
5 T~is ~ nv~nt~on relate~ to a water heater and ~n a
partic~ r aspe~:t it r~late~ ~o an electrlc ke~ctle.
BA~OUP~D ~0 ~HE INVI~NTIOP~:
~0
Whi~ling ket~l~s ar~ known which have a ~od~, a SpO~It or
~11in~ the l~et~l~ and a ~mo~a~le cap ~or loc~ti~g ove~
the spout ~nd wh~ ch ~ap con~ains a whi~tle to be op~rated
b~ ~team.
Howevel~, the caps fo~ ~u~h kettles a~e o~ten lost.
~n ~ mproved whistl~ ng kettle has a bo~, a ~pou~ ~or
f~lling th~ ke~tl~, a handl~, a clo~ur~ ~or 'che spout whl~h
20 is pivotally mot~ ed to the ~o~y and a me~han~m ha~lng ~n
opera~or lo<~ed in th~ han~le ~o~ ~u~in~ the closu~e 'co
pivot ~om a ~i~st, spou~ ~ove~inSI~ pos~t:ion to a s8~0nd
position in which the ~pout ls r~ot cc)vered and whe~ein a
whis~le ~s mounted in lthe closu~e~
While ~hat improved wh~stllng ke~tle does not sue~ ~om
the disadv~n~age o~ losing the cap, m3n~ p~3opl~,
partloularly the ~ldarly and in1~ nd dif1culty in
slmu~neouæly llt~ng t~ 1cett~e by ~he handl~, operatl~g
30 t~3 mechanism ~o br~ng the closure to the ~e~ond posl'cton
and ~ipp~ng the kettl& to ~our ou~ wa~er~
sin~ilar problem occurs ln kettle~ pro~rided wlth a
thermos~at to ~ltch the kettle o~ wh~3n it b~ ;ln that
35 to aot~2ate th2 th~mostat it io usual t~ prov~de a clo~ure
for s~ spout which can b~ mov~3~ from a 1~ pout
cove~ln~, po~i~ion to a se~onsl po~i~io~ ~n wh~c:h the spout
~25,~"~e.067,~am~.~,1
26-JIJI`~-19~2 11 27 r~ IDI~ $ 1~ h r-r I~ )G 61 ~ 7'~131~,0 P. 05
2 ~ ~ 2 ~ 3
15 not cov~e~.
T~E S~A~Y OF THE INVE;NT~ON:
rhe p~en'c ln~en~ion provld~ ~ water hea~-er ~omp:~s~ng a
~o~y for ~onta~ning wate~, a spout fo~ ps~l~lng w~er ~rom
~he wate~ heater, a cham~er within the }:ody which, ln use,
will l~e in co~ununi~ lo~ with water ~n the w~er heate~,
10 the cham4e~ ~omp~ Ln~ ~ wall ~hlch, $n use, exte1n~s
t~ough and below ~he ~u~a~e o~ wat~sr ln ~he w~ter ~eater,
wh~re~n 'che cham~e~ has an o~ific~e ~or eg~ess o~ s~eam
~here~rc7m and wherein the cAambe:r ~s, in use, adap~e~ to
tra~ a p~opo~tion of ~team eYol~ed ~n consequenoe of the
15 water hea~e~ ~oSling ~o~ ap~ o ~team vi~ the ~ri~ce.
~R~FP~ aspEc~ OF q!E~S INvE~rIo~:
~0
Preferal~l~ ther~ wh~ stle means or the~mo-~t~ me~n~
loc~d ~d~ac~n'c sald o~ ~ to, in use, indic:a~ r
detect boillng o~ the water l~te~.
25 P~e~erably th~ ~pout ~ s perm~nently open ~o malntal~A
co~Tunu~icat~on between ~he interior and exterior o~ the
wa'c~ heat~r.
Prefera~ly the~e ~ ~ s'ceam ¢ham~es into wllich ~ald ori~ce
30 open~ arld wh~ch has an opening ~o ~'cmosphere.
Pref~ra~ly thera ls whi~tle means loa~ted a~ sald op~ning
to, ln use, ~rldlcat~ bc~ling o~ the water heate~.
35 Pre~e~abl~ ~her~ the~mostat means in co~Tunun~c:at~or~ wlt~
~ald s~eam ch~er to, ~n use, ~taot ~i~inçt of the wat~r
h~Qr.
26-JLt`~- '.. 9g2 11: 28 5~ r)ERCOCKS P~ r h l T ~ 1 3 79131~0 P, 06
2 ~ 3
~ 3 --
Preferably the ther~ost~t mean~ doe not clos~ sai~
openln~,
uv~alSl;;~tlo~A, the o~1:1~S~ l!~om ~ c7homl3c~cr~f~,~ thi:r
a ~Vu ~ 3 ~v~ l v ~.. l,C.~ or~ ,~c~
whloh comes 0~2t of the outlet durln~ pouriT~g wlll go in~o
~che spout~
The ~h~ex~ ls prefer~ly ope~ at i~ ~ottom.
Th~ chan~er prefe~bly has a volum~ oJ les~ ~han h~l that
of the body as ~ whole. In ~ preferred ~n~stance, the
o~mbe~ has a volume o~ about one-quar~er ~at o~ the ~ody.
lS P~efe~b~y the chambe~ ha~ a plan cross-sectionaî a2~a o~
les~ ~hsn h~l, ~refe~ably less ~han o~e th~d, and more
preferably a~ut ~ne quaz~ter o~ the plan c:~0~3-Se~::t~ onal
area of th~ body.
2Q Pre~erably th~ orl~lce has a ~ross-~ec:t~onal are~ of les~
th~n 1.0~, more prefe~a~ly 1~ than 0. 5g6 an~ mo~t
prefe~a~ly ~. 3~6 of the plan cros~-~ectional ~ea o~ ~he
~hambQr.
~S Pre~e~ably the or~ fic2 has a c~o~s-s~ct~onal a~ea of less
~han 5~, mor~ pree~ably loss th~n 2~ and mo~t preferably
less ~ o~ ~e c:ro~-se~ion~ ea o~ tA~ spout.
The water l e~cer may have an el~ctric element for heating
~0 wat~r or tl~e water h~at~r m~y }:~R Of a type ~hat Is heated
ex~ernally.
The ~ha~ may be ~n~e~rally fo~me~ wl~h a pa~ of ~h~
2:ody or ~ay be a separately ~ormed in'ce~et~.
Pre~Qra~)~y th~ wat~3r hsator comprls~ 8 4~e and ~ ~over
3nd ~he c::h~er 1~3 ln ~a~t ~efln~a by ~ ~k~rt attaGhe~d to
-J~-14~2 11:2~' 5R`I~E~COCKS PI~T hTT ~I,[JG ~1 3 79131~0 P.07
. ;. ~
2~72'3'~1~
-- 4 --
and d~p~n~in~ ~rom ~he unde~ide of the cover.
p~Q4erably the sk~ rt has a w~ll which, with the cover, ~ n
pa~t de~lne~ the s~eam ohamber.
Pr~ferably the c~ove~ Aa~ an aperture ln whlc:h the
thermo~tat mean~ is rec~lved.
Pre~erab~y ~n add;l~lon to said orlfi~3 ~here 1~ ~n aper~ure
~0 to S~id c:hamber which apert-lre ~s o~lented to dl~ect ~
subs~antlal part o~ stear~ in the cha~er out of the
opening~
Pre~erat~ly 'cher~ i~ re~e~ means adapted 'co be m~nu~lly
15 ope~a~ed to re~e~ ~he ~he!rmost~t means a te~ ng.
DEgClUPq~ION OF g~ VIEW~ O~ ~E DRAW~NGS:
20 Spec~ flc const~lCtions o~ kettleg in ac:cordance with th~
~ nv~ntlon wlll now ~e d~sc:~bed by way o~ ~xam~le wlth
ref~renc:e to the ac:~ompan~lng ~Irawing~ ln whi~h:-
FIt~. 1 is a top pl~n v~w of ~ st Xet~le;
25FIG. 2 ~ ross-sectional view ~ the first ke~le.
FIG. 3 ls an enla~ged oross-sec~tlonal view ~f pa~t of ~he
~5t kettle a~d
FIG ~ v~ ew corre~pond ~o FIG . 3 but of ~ ~econd
k~ttlR
rE~ER LIS~
1. Flr8t k~t~1~
~25,~m~0~7,b~1eJ~m ,4
:~6-JUN-,1.. 93~ 9 ~ lr)E~C~KS PRT flTT L~ G 61 3 ~l~lf.0 .P~
2 ~
2. ~o~y
3. Upp~r pa~t
4. I,o~c~
6. ~landle
5 7. Sp~u~
8~ Cover
~ End
11 . End
12. ~arlS7
~0 14. Slo~
lli. ~dicator wlndow
t7. Sp~ing arm
18. Re~e~ axm
1~. Fi~st open~ng
lS :21. She;~mo~t~ G 0~'~ ~h
2~. Second opening
2~. 5klrt
27. Flange
~8. Flng~s
20 31. ~af~ em~:r
32. ~op portion
33. ~101}3
34. ~o~
-~6. Skl~t
25 37. ~reatest a~ea
38. Wat~r level indic~ator
39, Chambex~
4~. Ste~n oham~7~3r
51. Sec:ond kettle
30 81. ~landle
lgl. Whlstle open~ny
lDE;TAILES) S~ESCRIPTI3N ~ RESPEC'r 'ro ~E D~AWIN~S:
~he flr~t k~ttle 1 ~hown ln the dralwing~ com~iseq a body
2 ~ormQd o~ an Ul?l?~ ~rt 3 ~n~ a lower par~ 4 which a~e
i
,
,
.
.
'32 11: 29 5fi~`,D~R~OCI<C. P~T ~TT ~ G ~1 3 '~cJl 31~0 P. 0'-:1
sealln~ly ~oined togethe~.
The lower pa~t cont~lns an electrical heat~r element t nvt
shown ) an~ electric~l ~onneo~clon mear~ ~ not show~ ) to
S enabl~ elec~rl~:al powe~ to be c:onveye~ to ~che h~ater
sl~ment .
~he upper par~ 3 ha~ a handle 6 for lit~ng and t~l~ins~ ~h~
ke~ a and ~ spout 7 ~or fill~n~ and eTpt~lng the ~ce'ctle.
1~ It is ~o ~e noted that the ~:-potlt 7 h~3 no cove~ s:; ~ny sor~
hus ~ha~ no~h~n~ need~ to l~e open~ ~or ~llllng or
emptying pu~pose~
~he handl2 6 has ~ oover ~ wh~ch at one end 9 loc:~es with
15 the lower part 4 and a~ ~h2 o~her end 11 has a ~c~n~ 1
wh~ch fit$ into a ~lot 14 4 ~ he uppz~ part 3 .
Va~ous wiring, not shown, ~ s lo~a~ed undqr th~ ~o~rer 8~
20 The ~oYer 8 has an ln~i~a~or w~ndow 16 beh;~n~ wh~h ~ neon
lamp ~ot shown) ~i:Ll 2~ locate~
The window 16 is ~ntegrally fo:nnPd wlth a spring arm 17 a~d
a reset am~ 18 and wh~r~ the wlndow 16 ~s depressed 4t; wll~.
25 move the arm 1~ down aga~nst ~}~e ~ias of th~ arm 17.
~ f~rs~ openlng 19 i~ provl~ed in 'che upper pa~t 3 an~ a
manuall~ ~esett~ble tho~mos~ Switc;h 21 13 ~o~ e~ ~n
~n~l <;loses ~hat opening.
A second opening 22 ls pro~lded in the upper part 3 for a
pu~pose to be expl~ned,.
A sX~rt ~5, a ~lan~ 27 and ~ingers 28 dep~nd from the
~S unders4de o~ ~h~ u~ pa~t ~
A ~a~fle m~mber 31 t o¢~e~ wlth~ th~3 sk~c 26 a~d is
26-JLI~'-;1.l~3;~ 29 ~f~ EF~COCKS PhT hTT r)l`lrJG ~1 3 7'~131~0 P. 10
2 ~ ~2 ~ ~ 3
~dl cxc~ ~ho~oto w~h t~u fl~ns~4 ~7 ~n~l f~ r~ 2f~ asE~i~t
~he loca~lon ~f the b~f~l~ member.
I'he ~a~fle mem~er 31 has an inclin~d tc~p portion 3~ havlng
S two holes 33 and 34. The hole 33 is d~rected towards th~3
thermost~io swltc:h 21 ~nd the hole 34 ~s directed towards
the open~ n~ 22 .
q'he ~a~le mem~er 31 ~lso has a depend~ng ski~t 36
s~ct~onal a~ea a~ ~7 locatQd ~em~e f~om the spout 7 and ~t
may ~ that the heate~ element ~ s ~u ::h ~r is ~rrar~ed sc:
th~t mor~ hea~ ~ generated remote ~om the ~pout 7 th~n
lS ad~acent the ~out 7.
~he shap~ of the skir~ 36 ~s shown in dash line Fi~ 1.
~he sklrt 36 h~s a lug 38 which ~ndi~a'ces the level to
~0 whi~h 'che ~ceS~le should ~e f~lle~l.
The sk~r~ ds~lnos a ~ham~er 3g wgth~n the ket~le and that
chambe~ O~en5 'chrou5~h holes 33 and 34 lnto steam cham~e~ 41
de~ined by top ~ortion 32, fl~nge 27 and pa~t of the upper
25 part 3 ~nd then 'chrough open4 ng 22 to the o~t~de o~ th~
Ice~tt~ ~y.
Il~ use, when water bo~lg some steam will exit v4a the spou~
7 but a p~c~por~ion wil~ ~ollec:~ ~n the chambe~ 39, pa~
~0 ln~o the steam chambe~ 41 and he~t 1;he thermostatlc swl~ch
21 so tha~ it opens to stop heatin~ o 'che w~ter.
In prac~ , mo~e steam wlll bQ collected ~r~ the chamber 39
than is needed to heat th~ s~t~h 21 an~ to dl~slpate ~te~am
35 the hole 34 is provldod and i~ directed ~owards ~he op~3nlng
22 and will ln I~;~r~ be dl~ected b~ the ~an~ 12.
920626~ns~pe 067~ame.~mJ
.
c~-JLlN~ 2 11: 30 ',R~ ERC~CK.j Ph r ~IT r r~ G ~1 3 7~ 3 ~. 11
2 ~
-- 8 --
~he openlng 22 al~o ha~ ~ urth;~:c functlon i~ ~ch~t it 1~
open at ~ll times and allow~ steam so ~r~ s~ap~ ~om
the ~team chamber. Thus, the swit~h 21 w~ 11 cool more~
rap~dly and C~ be ~eset mo~ cau~kly ~ch~n i~ th~3 openlng
22 w~e no'c presen~.
I~leall~, tne swltch ~1 ~hould be ~set~abl.e in ~ se::onds,
o~ les~, pr~era~ly 15 ~econds o:r less and mos~ pr~e:r~bly
12 ~e~:onds ~r les~
The second Icettle 51 shown ~n Flg 4 ~; simlla~ to the 1~
kettle 1 e~cepting it has no sw~tch 21 and inconseqllence
certal~ ~n~eg@rs are omi~ted, th~ han~le 81 is ~i~er~ntl~
shaped, the opening 22 ls omlt~e~, tAe hole 34 i~ om$'ctea
15 and th~a open4ng lg has k~een r~plac:~d by a whls~le openlng
19~ .
In u~e ~he sec~ond kettle wlll whist wh~ it bolls.
~0 ~he open~ng 2~ and hc~l* 34 we3~e om~te~ as b2~ ng
unnecassary and to ~llow fo~ a louCI ~h~st~e.
Ftnally, lt ls to ~ unde~;too<~ that the ln~n~ive ~oncept
in an~ o~ aspec:ts o~n b~ incorporF~teCl ln many di~ r~nt
constructlons so that ~he gener~ y o~ ~he prec:edln~
~escr~ptlon is no~ to b~ supe~seaed by ~he particula~y o~
t~e attaohed dra~lngs. Va~ous al'cera~40ns, modi~ioa~lons
and Q;C ~ddition~ may be inco~p~r~e~ ~nto th~ va~iot~
c:onst~ruc:t~ on~ and ~rrangemel~s o parts w~ thout depa~ng
30 ~om the spir~t ~nd ~mbit o~ tha lnvention.
Th~ cl~ims and drawing~ ~orm par~ o~ thQ dl~closu3re o~ th~s
~p~oi ~lo~t$c)r~ .
s~067,ba
