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Патент USA US2548519

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April 10, 1951
F. J. CANTALUPO ETAL
2,548,516
VALVE FOR AUTOMATIC WASHING MACHINE
Filed Dec. 9, 1947
2 Sheets-Sheet 1
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Apl‘il 10, 1951
F. J. CANTALUPO ET AL
I
VALVE FOR AUTOMATIC WASHING MACHINE
“@9" W @
2,548,516
Patented Apr. 10, 1951
2,548,516
UNITED. STATES PATENT OFFICE
2,548,516“
VALVE Foe AUTOMATIC WASHING
MACHINE
Francis J. Cantalupo, Chicago, Edmond P. De
Craene, Westchester, Edward G. Schmidt,
Western Springs, Raymond P. Setka, ‘Chicago,
and Chester W. Yant, Westchester, Ill., assign
ors to ‘Crane 00., Chicago, 111., a corporation of
Illinois
Application December 9, 1947, Serial No. 790,638
4 Claims.
1
(Cl. 236-12)
2
This invention relates to, valves and more par
ticularly it is’ concerned" with a valve suitable
for use with automatic washing machines and
the like. It will be apparent that while described
in connection with the functioning of the cur
of the washing machine upon which the valve of
this invention is installed.
Other important objects and advantages will
become more readily apparent upon proceeding
with the following speci?cation read in light of
the accompanying drawings in which
rently popular automatic washing machines, it
may'ofcoursebe employed in other unrelated ca
pacities on a wide variety of devices in which
similar objectives are desired.
Fig. 1 is a sectional assembly view of a valve
embodying our invention.
Fig. 2 is a fragmentary andexterior view of the
'
One of themore important objectives of this
invention is to‘ providermeans- cooperating with
valve ' looking toward. the temperature control
notched cam,»pawl, electro-magnet and support
a: timing device whereby ?ow of water into a
washing machine may be permitted and then
stopped in’ accordance with a cycle established
by such- timer.
'
~
»
ing parts.
.
r
Fig. 3 is a fragmentary'sectional view taken on
the line 3?—3 of Fig. 1.,
15
Another object is to control the amount of
'
Fig. 4 is a fragmentary'sectional view taken on
water-?ow within set limits upon actuation of an
the line'4—4 of'Fig. 3.
Fig. 5 is a sectional viewtaken onthe line'5-5
electrical timing device irrespective of line pres
.of Fig. 3.
sure.
>
‘
,
Similar reference numerals refer to similar
It is'a; further object to control the tempera 20 parts. throughout the several ?gures. ,
ture of thewater'within close limits at. any set
Referring now to Fig. l', the valve'body‘or cas
temperature; but at the'same time to permit the
mg‘ l is preferablyprovided with the lower ex
operator or user of thema'chine to exercise wide
tension 2 which serves as the connecting, means
discretion in‘ theselection' of the desired tem
to respective hotv and cold water‘ supply'lines as
perature setting.
25 indicated atl-I and: C respectively, having’ such
Anotherimportant object‘ is to provide-for a
, desired means for effectinga connection as the
device which .permitsithe automaticreturn of the
threads 3 andll. Obviously other suitable'con
temperature control mechanism'from a highset
necting means may be substituted'forv the said
ting- to- a; predetermined? lower setting’ in accord
threads. The extension portion’ 2 may ‘be'bolted
with- a-. time cycle controlled by the electrical 30 as at 5 to the'body I, or may be made integral
timer" or a suitable mechanical cam'means.
therewith.
Another object is to’ provide in'a valve or" this
As indicated, adjacent" the connecting end of
type means-whereby cross-flow ‘between hot and
the extension ‘I are the inlet'ports designated t,
cold‘ water: inlet supply lines; is’ prevented and
suitably located above the inlet screens ‘l, the ar
also to prevent the entry or passage of. line dirt, K
rangement of theinlet ports being more clearly
foreign matter or scale into the valve mechanism.
apparent as shown in Fig; 5. Suitably inter
A still further‘ object isyto'provide a more eco
posed between the casing I and the extensionrin
nomically constructed valverthan that which has
let- member 2 is the diaphragm inletv gasket 8,
heretofore been available.
. serving as check and- sealing means, securely
It‘ is;- conceded that valves presently" on- the
held in leak-proof relation-therewith by means
marketsatisfy several ‘of the ‘objects hereinabove
of the screws» 5. As shown in Fig. l, and perhaps
named, but'to;our. knowledge no-one previously
more clearly inFig. 5, the diaphragm gasket 8 is
has provided for"the-variabletemperature con
apertured at 9 and l I- only, thereby to suitably
trol, as, hereinafter described-in addition to the
overlap the inlet ports 6. for reasons hereinafter
employment of automatic-“responsive means: such 45 explained, the Web portion I2 being an integral
as a single thermostatic; element for automati
part of the inlet portion 2. It will thus become
cally tripping the temperaturecontrol mechanism
immediately apparent that as water enters either
to ‘at lower temperature setting.
or bother‘ the inlets Hand C‘ it passes through
Itwill further, become apparentithat an added
the apertures-l5 of the web l2 the pressure. 01" the
advantage over similar valves'heretofore avail~
water causing the rubber-like diaphragm gasket
able: is the'useof atemperature control mech—
8 to ?ex upwardly thereby permitting the pas
anism providing for. a: wide range of: temperature
sage of the water across then-face of thecenter
settings, and‘ also providing'fo-r the automatic
section of the web 52 and through the passages
setting-tea .l'ower ‘ temperature ‘for rinsing when
91 and Hot-the gasket 8;. Therefore it isxclear
required during the¢courseof the operating cycle
55
that the lattenmentioned gasketnot only seals
2,548,516
4
the joint between the casing I and the inlet ex
perature control stem 28 and the cap 29 the
gasket I6 is made with the corrugated expand
ible portion 3| snugly ?tted over the lower end
portion 32 of the stem 28 and received within
tension 2, but also functions as a check valve ?ap
per or closure member. Thus if the pressure in
the hot Water inlet H should exceed that in the
the recess 33 of the bellows l5. The stem 28
cold water inlet C the passage of the higher pres
projects through the aperture 34 of the cap 23
sure water normally through the passages of the
and is threaded at 26 for reasons hereinafter
body I would establish a higher pressure on the
explained. It is desirable to provide means for
outlet side of the cold water check valve then on
absorbing the over run of the bellows [5, due
the inlet side, which would tend to cause back
?ow through the cold water inlet. In so doing l0 to the relatively high temperatures of the mixed
water and this is provided by allowing the spring
however the gasket 8 is forced into intimate or
' 35 to be compressed if the bellows l5 should
fluid seating contact with the web of the cold
water inlet 6 of the extension 2 and prevents ob
jectionable cross flow of the hot water into the
cold water supply line, or vice versa, with pres
sure conditions reversed from those hereinabove
described.
Within the casing I, the mixing valve parts
are contained and consist essentially of the said
casing, the piston or regulating closure member
I3, the piston spring l4, a thermostatic element
such as the thermostatic bellows I5 and a seal
ing means such as the bellows type of rubber
diaphragm i6 cooperating with the latter mem
ber. Assuming that the water from both hot
and cold inlets has flowed through the diaphragm
passages 9 and II into the chamber IT. The
hot water passes between the lower edge I8 of
the piston l3 and the top edge I9 of the adjust
ing ring 2|. It then moves upwardly through
webbed openings 22 in the piston I3, through
the opening 23 into the bellows chamber 24 of
the body
I. Similarly cold water entering
through the gasket inlet II passes between the
top edge I!) of the piston I3 and the oppositely
disposed annular surface 20 of the body I; such
expand after the edge I8 of the piston I3 is
seated against the adjusting ring 2| and upon
the surface l9. At its lower end the bellows I5
is provided with the boss 36 recessed to be receiv
able upon and supported by the projecting por
tion 31 of the piston I3.
Adjusting means are provided for setting the‘
valve and bellows for any desired temperature
and to permit an automatic reset of the valve
to a predetermined lower temperature, as for
vexample such as that required for rinsing clothes
in an automatic washing machine.
Directing attention in the latter connection to
the upper portion of Fig. 1, the cam 38 is rotat
able with the shaft 39, which latter member, as
more clearly shown in Fig. 2, is arranged as at
M for attachment to a knob or lever (not shown)
on the front face or panel portion of a wash
ing machine by such means (also not shown)
as a ?exible cable, a rigid shaft, gearing or other
linkage or actuating means so that rotation or
comparable movement of the shaft on the wash
ing machine to a desired point indicated on a
temperature scale showing suitable temperature
ranges desirable for washing, will eifect rotation
annular space, not shown, will exist due to the
expansive action of the bellows under the initial
of the cam shaft 39 and relative movement ro
in?uence of the hot water forcing the piston I3
tatively of the lever arm or cam 38. With this
downward sui?ciently to create the said space. 40 actuation in mind, it should be understood that
Thus the cold water will move upwardly into the
rotation of the cam shaft 39 in a clockwise direc
tion will cause the cam 38 to move the adjusting
passage 23 and thence into the bellows chamber
collar 42 and the rod 28 upwardly to provide a
24, mixing with the hot water at the same time.
As will hereinafter be explained, the mixed water
gap between the end 32 of the rod 28 and re
cessed surface portion 33 of the bellows l5. The
passes around the bellows I5 and then out
pivotally mounted latch 43 on the shaft 44 is
through the stop valve and ?ow control valve.
spring-loaded as at 45 to hold the arm or cam
It should be noted that leakage of hot water
38 in the desired position depending upon the
into the cold water around the periphery of the
piston closure member 13 is prevented by em~
desired movement of the bellows l5 and water
temperature in demand. It will be apparent that
ploying an O-ring 25, which is made preferably '
the effect of providing a gap at the lowermost
of a rubber-like material, and eliminates the
end of the rod 28 and the recessed surface 33
need for using close tolerances between the body
of the bellows I5 is to require a greater increase
bore and the outside diameter of the piston I3
in the length of the bellows before any force is
and yet insures the accurate mixing of the water
e?ected to move the piston I3. It should also
passing into the bellows chamber 24. Under .
certain conditions the O-ring may be dispensed
be clear that the said increase in bellows length
can only be obtained when and if the mixed water
with.
temperature rises with the ultimate result that
_ In actual assembly, the piston closure I3 and
such movement will provide increased tempera—
the O-ring 25 are placed into the position indi
tures of the mixed water. The amount of axial
cated and the adjusting ring 2I is then tightened
movement of the rod 28 necessary for any given
in place until a predetermined gap between the
temperature change in the setting is preferably
surfaces 18 and I9 is provided between the piston
calculated from the bellows characteristics and
and the ring. The spring I4 is then placed
the piston l3. Threading of the rod 28 as at
against the spidered portion of the piston ad
26 allows for additional adjustability in connec
jacent the ports 22 and held in compression by
tion with rod movement.
the bolted extension 2, thus causing the piston
The above described assembly is supported on
l3 to return to its seat 29 after it has been lon
the bracket 46, bolted to the cap 29 as at 41, and
gitudinally moved by expansion of the bellows
rotation of the shaft 39 in a clockwise direction
I5, which is generally. but not necessarily, of the
70 causes the compression of the spring 35, the
liquid filled type.
latter member serving three purposes: (a) it
Sealing of the bellows chamber 24 at its upper
provides sufficient resistance to forces created
portion is accomplished by means of the said
by the expansion of the bellows [5 to insure that
gasket I6, held in place by the bolted cap 29 and
the expansion in the said bellows is used to op
the securing screws 21. For purpose of provid
ing a leak-proof connection between the tem
erate the piston member l3; (1)) it absorbs the
auspice
5:1; I
oyerruir-o?-thebellows1=aiter th‘episton endé'ipore
the. disc 52 'whi'chaisrai desirable-‘feature intaivalve:
tion,» l8"» has’ seated‘ againsti'the sladjustingiil ring;
2 I? when the shoulder type ‘of ring: is.’ employed,
and11(c)‘ it-causes rotation of theshaft 39iand
the cam '38-ina counter clockwise direction-after:
theelatch member 43‘has beenctripped itoforce'v
the rod» 28,» the bellows I5 and thenpiston: disc=
or~'closure\i31up to a position tomshut offfthe'.
of thisztype.
When it is. desired tostop the passage of waterv
through thevalveqthe solenoid,“ is ,de-energized;
; whenlthe timer. breaks’ the electrical circuit toit.
This construction permits the, armature‘ '53_ to:
drop to its seat around the aperture 62 and thereby; permits line pressure to increase above the‘
flow of hotfwater and thus cause theemixed.
disc 52 to‘ build upisu?icient force on top of the;
Wateetemperature to drop to thatrdesired for. 10'; said disc to cause it to return to its seat. A spring“
rinsing-lepurposes, thatv is» approximately: 90°3 F.
65 is provided between the cap or cover 29 and the
before the expansion and‘ contraction: of the‘
disc 52 to aidin the latter described closing
bellows- l>5~>isi again usedto- control‘ the mixed
action; The, shape of thedisc 52.secures;the~ad
waterrtemperatures» within the. desired range or‘
vantage ofoanintegraldisc and piston member
tolerances.» It should be understood of’course 15 and when made of rubber-like material vsecures
tight." seating and; also‘ provides, tight. sealing,
around the pistonv periphery. The piston lipsrB?
that ' the-=latch 43 His tripped tat the’v desired time"
in“ the~general¥ wash cycle-1 of'the automatic"
washer either by ‘I an electro-magnet 48>‘ with‘: a
act. as. a guide. during the axial movement of
tripper contact - 49 and connected 'operativlely to
the disc and also provides a yielding and tight
an' electrical timer (not shown) or else by means 20c seat for the armature 53.
of a- mechanical action provided ‘by some ‘common;
In: connection with controlling-the, rate-ef-aflow;
device (also not shown) connected/into thelautoe
of theiwater as itxpassesv from the stop-lvalve‘and;
matic washing vmachine operatingv mechanism.
before discharging into the washing-machinaag
?ow~ control valve is provided. Primarily it, con
The-employment of the latter is notnew‘ and
hence it is unnecessary to describe themin detail;
In connection with the operationofwan auto
sists of’ a cage 61; as shown more clearly in;]5'igs:_;
3 and 4', in which latter member a- rubber-like.
washer 68>is retained. In: cooperation therewith‘
to adinitand to shutoff theiflow-ioflwater into
an'ori?ce plate 69'with a plurality of apertures ,‘II
the tub preferably in accordance‘ with electrical
and: an integral stem guide 12 is used, having:
impulses controlled by a suitable timer; This is 30 connected in ?uid tight relation the discharge
conveniently accomplished in combination with
pipe, 13., It should be understood that-the d6‘:
the previously described mechanism by means of
scribed assembly acts similar to a check valve in
a solenoid valve int-which the bodyvporti'on 5!
that ‘the upstream pressure tries to-force thercage.
matic washing machine it is of? course desirable
is- preferably but not necessarilymade-integral
with the casing» 1-. A piston-shapedcup-l-ike disc ‘
52‘isemployed having an armaturei53 and" a
solenoid-coil Mwith a pressure ‘tight tube 55'to
tit-‘against the orifice plate 69ito'stopthe flow of
waterthrough the orifices ‘H, but the-assembly:
diners from a check valve in that the washer 68'
functions'a-s aspring to prevent complete-closure
receive the armature ' 53'.
of'said- ori?ces. However the washer 68 does yield.
The‘ solenoid coil'is
retained-in place by'the member 50. Theswater
su?iciently to‘ vary: the gap between the flange‘
enters the solenoid stop vvalve chamber‘56 when 40 ‘Men the’ member 61 and the plate 69 inversely
the‘ valve is open by“ means'of' the channel 51
connected- with the upper end of'the bellows
chamber '24; as moreclearlyshown in“ Figs; 1; 3
andv 4. Thus line pressureis provided‘ underther
disc or closure member'SZ-‘and a hole 58 is pro
videdn'ear'the'disc periphery so that line pres
sure‘ is'permitted‘to pass into the chamber ‘59
above the'disc. A seat 61 is provided in the valve
to-the-increase in- pressure in the inlet between.
the'cage-and the stem 72 to insure properguid
ing‘ of the cage 2| and prevent any tendency
toward'erratic ?ow control due to tipping'ofithe
cage otherwise: occurring. The shoulder at‘ 15‘
on the cage-6T insures a minimum gap between
the ?ange ‘lil- and the ori?ces'H of‘ the plate 69.
The discharge pipe '53- is- bolted to the-body por
proper preferably integral with the casing 5| and
tion 5"! by means of‘v thescrews- 16 and a-leak-M
the central passage 56. handles the, flow of water 50 proof connection effective by the'ga‘sket 11. It'
into the valve as discussed later. A central aper
has'been found that the chamfered portions-T8
turei?z is provided in the ‘disc 52, of‘l'arger diam
and’l?aid' in improving the performance of- the
eter than the passage 58 so that when the arma
rubber-washer 68, and this also applies in allow
ture 53 isf'liftedf' from: its; seat: at 163; the water
ing for-‘the- annular space 8| thereby permitting
above. the disc is discharged through the aper 55 the proper deformation of the Washer 68 to secure
ture 52 and into the outlet Bkat‘a fasterQrate
the desired‘control'of ‘outlet flow from the valve;
than it’ is admitted through the opening,’ 58.
lt'has been found‘ too-that a’ rubber or rubberThis construction results in a reductionof; the
like‘ material having a Shore' hardness of ‘26>"ito
load above the disc 52' in comparison ‘with. the
30A" gives-'the'most satisfactory results.
'
load exerted by pressure von the lower surface 60
It should be understood that-all of’the embodi
and- causes the piston-like discv52 to rise permit
ment shown and described; is adaptable for-‘use
on devices other‘than washing‘ machine valves,
ting the'?ow of Water into the outlet channels“.
and therefore we do not limit’ ourselves to the
At this; stage of the description, attention, is
calledto the aspirator oreductortube ??imounted
as~ indicated'iinFigu .1, upon thezmember ' 52Z=solas
form: of "valve illustrated herein, because - the in
65 vention asiset forth-in the followingrclaims-may
be set‘forthin a plurality of forms and'adapta
tions.
56, so that when the valve is fully open the lower
We claim:
'
most portion of the tube does not extend above
1.
In
a
valve
of
the
character
‘described,
a cas
the seat 6|. While the said tube is shown as a 70
ing, a regulating closure member therefor, tem
separate part, it may of course be made integral
to extend relatively deep within the seat opening
with the disc 52. It has been found that the tube
member 6i! aids in evacuating the contents of
the chamber adjacent the armature into the
perature responsive means 'for regulating the
movement of said regulating closure member, a
rod limiting the expansion of the temperature re
sponsive means to cause movement of the regu
valve chamber 56. It thus promotes full lift of 75 lating closure member within a givenltempera-v
2,548,516
7,
ture range, means including respectively a cam, a
latch, and unlatching means for adjusting the
position of the said rod in relation to said tem—
perature responsive means, to provide for a range
of predetermined mixed water temperature set
tings and to permit automatic repositioning of
the said responsive means to a predetermined
lower temperature setting, and resilient means
8.
perature setting, and resilient means supported by,
the projecting portion of the said rod member
to provide end resistance to the axial force created
by said temperature responsive means to insure
that expansion of the said latter element moves
the said regulating closure member, said resilient
means providing for absorption of excessive move-v
ment of the temperature responsive means, a sec
ond resilient means cooperating Withthe said
cooperating with the said rod member to provide
resistance to force created by said temperature 10 regulating closure member to effect movement of
said regulating closure member upon contraction
responsive means to insure that expansion of the
of said temperature responsive means.
said latter element moves the said regulating
4. ‘In a valve of the character described, a cas
closure member, said resilient means providing
ing, a 'l‘ecipro‘cably movable piston-type regulat
for absorption of excessive movement of the tem
perature responsive means; a second resilient 15 ing closure ~member therefor carrying relatively
loosely’ disposed sealing means in' slidable rela
means between said regulating closure member
tion to the casing, temperature responsive means
and the casing to insure movement of said regu~
for regulating the movement of said closure
lating closure member upon contraction of said
member, an adjustably mounted rod limiting the
temperature responsive means.
2. In a valve of the character described, a cas 20 expansion of the temperature responsive means
to define movement of the regulating closure
ing, a regulating closure member therefor, tem
member within a given temperature range, means
perature responsive means for regulating the
including respectively a pivotally movable cam,
movement of said regulating closure member, a
a latch engaging an edge of the cam, and inde
rod‘limiting the expansion of the temperature re
sponsive means to cause movement of the regu- " pendently actuated unlatching means for adjust
ing the position of the said rod axially in rela
lating closure member within a given tempera
tion to said temperature responsive means to pro~
ture range, means including respectively a piv
vide for a range of predetermined mixed water
otally movable cam engageable by the said rod,
temperature settings and to permit automatic re
a latch for the said cam, and unlatching means
positioning of ‘the said responsive means to a
for adjusting the position or the said rod in rela
predetermined lower temperature setting, and a
tion to said temperature responsive means to pro
plurality of resilient means respectively cooperat
‘vide for a range of predetermined mixed water
ing with spaced-apart portions relative to the
temperature settings and to permit automatic re
said rod member to provide resistance to the end
positioning of the said responsive means to a pre
wise force created by said temperature respon
determined lower temperature setting, and re
sive means to insure that expansion of the said
silient means for providing a predetermined re
latter element moves the said regulating closure
sistance to the axial force created by said tem
member, a portion of said resilient means provid
perature responsive means to insure that expan
ing for absorption of excessive movement of the
sion of the said latter element moves the said
regulating closure member, said resilient means -
providing for absorption of excessive movement
of the temperature responsive means, a second
resilient means between said regulating closure
member and the casing to insure movement of
said regulating closure member upon contraction
of said temperature responsive means.
temperature'responsive means and means coop
erating with said regulating closure member and
the casing to insure movement of said regulating
closure member upon contraction of said tem
perature responsive means.
FRANCIS J. CANTALUPO.
EDMOND P. DE CRAENE.
EDWARD G. SCHMIDT.
RAYMOND P. SETKA.
CHESTER ~W. YANT.
3. In a valve of the character described, a cas
ing, a regulating closure member therefor, tem
perature responsive means for regulating the
movement of said regulating closure member, a “
rod bearing against an end portion of the tem
perature responsive means to limit the expansion
of the said latter means to cause movement of
REFERENCES CITED
The following references are of record in the
?le of this patent:
the regulating closure member within a given
temperature range, the rod having an annular '
projecting portion adjustably movable relative
thereto, means including respectively a cam bear
ing against an annular surface of the rod pro
jection, a pivotally mounted latch, and unlatch
ing means comprising an extension of the said 60
latch for adjusting the endwise position of the
said rod in relation to the said temperature re
sponsive means to provide for a range of prede
termined mixed Water temperature settings and
to permit automatic repositioning of the said re 65
sponsive means to a predetermined lower tem
Number
UNITED STATES PATENTS
Name
Date
1,707,541
2,161,769
2,236,477
2,251,441
Roth __'_ __________ __ Apr. 2,
Trask ____________ __ June 6,
Fuchs __________ __ Mar. 25,
Dillman __________ __ Aug. 5,
1929
1939
‘1941
1941
2,381,146
Von Wangenheim ___ Aug. 7, 1945
2,389,134
2,442,886
2,444,631
Brown __________ __ Nov. 20, 1945
Bowen ___________ __ June 8, 1948
Chace ____________ __ July 6, 1948
2,444,677
Rosenblum _______ __ July 6, 1948
2,448,170
Brown __________ __ Aug. 31,
1948
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