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Патент USA US3020923

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Feb. 13, 1962
H. F. LYMAN
3,020,917
DISHWASHING MACHINE WASH AND RINSE FLUID
DISCHARGE APPARATUS
Filed Nov. 18, 1958
2 Sheets-Sheet 1
INVENTOR
HEIMER' F. I_YMANy
Feb. 13, 1962
H. FA I_YMAN
DISHWASHING MACHINE WASH AND RINSE FLUID
-
3,020,917
DISCHARGE APPARATUS
Filed Nov. 18, 1958
2 Sheets-Sheet 2
E4
I
B'Y
¿"/4 HDMERINVENTOR
F. LYMAN
_
United States Patent Ófltìce
l
-
`
3,020,917
yPatented Feb. 13, 1962
2
shaped angle bars 23 (FIG. 2) and the lower edges of
>3,020,911
,
_,
.,
,.
.
DISHWASHING MACHINE WASH AND RINSE
FLUID DISCHARGE APPARATUS
Homer F. Lyman, 44 Windsor Place, Nutley, NJ.
Filed Nov. 18, 1958, Ser. No. 774,771
the doors are restrained from movement inwardlyA of
the casing by restraining plates 24 (FIG. 2) secured to
angle bars 23 by threaded members 25.
f Casing 11 is provided with a cleaning chamber or
washing and rinsing chamber 27 in the upper part there
of and with a wash liquid compartment 29 immediately
below the cleaning chamber and in the lower portion of
This invention relates to cleaning apparatus wherein
the casing. A dish rack supporting table 30 disposed
an article to be cleaned is subjected to a cleaning fluid
in at least two successive spraying cycles, and more par l0 intermediate the top and bottom of cleaning chamber 27
and mounted for reciprocal movement in a horizontal
ticularly to dishwashing apparatus which operates in a
plane is provided. Table 30 comprises a pair of parallel
wash cycle and in a rinse cycle.
and inverted angle bars 31 and 32 (FIG. 2) which ex
The present invention broadly contemplates novel
tend in directions parallel to side walls 12 and 13, and
cleaning apparatus wherein a cleaning fluid employed in
a pair of parallel angle bars 33 extending in directions
one spraying cycle is collected for recirculation in a sub
parallel to front and rear walls 14 and 15, the angle bar
sequent spraying cycle, and a cleaning ñuid employed in
33 nearer the front wall not being shown in the draw
a spraying cycle following the said one cycle is prevented
ings. Angle bars 33 have a horizontal portion 34 which
from coming into admixture with the collected fluid, and
5 Claims. (Cl. 134-58)
is bent downwardly at either end and a vertical portion
is discharged to waste.
In the application of the present invention to dishwashing
35 at right angles to portion 34. Vertical portions 35
apparatus which operate in a wash cycle and in a rinse
cycle, the wash liquid is sprayed onto the dishes during
which rests on the horizontal portions of angle bars 31,
serve to restrain lateral movement of a dish rack 36
the wash cycle and is collected for recirculation in a
32 and 33.
subsequent wash cycle. The rinse liquid used in the
succeeding rinse cycle is prevented from mixing with the
each other in any suitable manner, as by welding, and
form a rigid table for the dish rack 36. Angle bars 31
Angle bars 31, 32 and 33 are secured to
and 32 extend slightly beyond the angle bars 33, to form
collected wash liquid and is conducted to waste.
The dishwashing apparatus of the present invention
an extending portion at each corner of table 30 and such
extending portions have secured thereto U-shaped thread
comprises a casing having a cleaning chamber and rack
ed eye members 38, by nut members 39. The eye mem
means therein for accommodating the dishes to be
cleaned. Wash spray pipes and rinse spray pipes are 30 bers 38 -accommodate end curved portions of vertical sup
porting rods 40 which havecurved portions at their other
disposed in the cleaning chamber and serve to spray the
ends engaging U-shaped threaded eye members 41 se
dishes with wash liquid and rinse liquid during the wash
cured to a top frame member 42 by nut members 43.
cycle and rinse cycle, respectively. The wash` liquid
Actuating means for imparting reciprocable movement
collects in a wash liquid compartment, disposed below
the cleaning chamber, and means are provided for recir 35 to table 30 in a horizontal plane within cleaning cham
ber 27 is provided. The actuating means to be described
culating the collected wash liquid to the wash spray pipes
hereinafter does not form part of the present invention but
in a subsequent wash cycle. In order to prevent admix
ture of the rinse liquid with the wash liquid to be recircu
lated, and dilution of the latter, a rinse drain compartment
connected to waste is provided. Novel deflection means 40
are disposed above the wash liquid compartment for in
tercepting the rinse liquid during the rinse cycle so
is disclosed herein to provide a complete understanding
of the washing operation of the subject dishwashing ap
paratus. The actuating means is fully disclosed and
claimed in applicant’s U.S. Patent No. 2,655,163 issued
October 13, 1953, and for that reason only that portion
necessary to an understanding of the present invention
as to deflect the rinse liquid away from the wash liquid
has been illustrated in FIG. 2 of the drawings and is to
compartment and to' the rinse drain compartment, where
the rinse liquid is conducted to waste.
45 be described hereinafter. As shown in FIG. 2, the ac
tuating means comprises a gravity water wheel 44V revo
The invention will -be understood from the following
lubly mounted on an axis v45 which is secured to rear
description when considered in connection with the ac
wall 15 of casing 11 substantially equi-distant between
companying drawings forming a part thereof and in
side walls 12 and 13. Water wheel 44 has a central disc
FIG. l is an elevational View, in perspective, of a dish 50 or hub 46 secured to axle 45 for rotation therewith. Disc
46 has a crank pin 47 eccentrially mounted thereon which
washing apparatus embodying the present invention;
cooperates with an elongated slot 48 in a vertically ex
FIG. 2 is a part sectional view ofthe dishwashing ap
tending actuating arm 49. Actuating arm 49 is secured
paratus shown in FIG. l and is taken along the line 2_2
in an upright position to angle bar 33, nearer rear wall
of FIG. 3;
.
..
FIG. 3 is a sectional view taken along- the line 3-3 55 15, substantially _mid~way between the opposite ends
which:
of FIG. 2; and
.
Y
-
.
,
,
.
FIG. 4 is an enlarged diagrammatic view, in perspec
tive of the pivotal tray member ’shown in FIGS. 2 andl 3V
thereof. Crank pin 47 is of such diameter that the
peripheral surface thereof slidably engages the opposite'
sides of slot 4S. .
As shown in FIG. 2 water wheel 44- has a plurality of
together with the actuating` means therefor.
Referring to FIG. l of the drawings, the reference 60 buckets 50 of substantially square shape, all facing in the
same direction, and carried by radial arms 51 secured to
numeral lll designates a casing Whichis substantially
disc 46. Water wheel 44 is actuated bywash liquid
rectangular in cross-section.> .The casingll comprises
from wash liquid compartment 2.9, which flows through
opposite side walls 12 and 13, frontwall 14 and rear
a connecting pipe (not shown) to a` conduit 52. (partly
wall 15 (shown in FlG..3), a top or hood 16 >and a bot
tom 17. The upper portions of side walls 12 and 13, 65 shown) having outlet nozzle 53 `and' 54 disposed immedi
ately above buckets Si). Nozzles 53 and 54 are arranged
and front wall 14 are provided with doors 18, 19 and. 20,.
to discharge jets of liquid downwardly into buckets 50'y
respectively and handles 21, the `doors >being slidable'
so as to rotate water wheel 44 in a clockwise direction` `as
upwardly to obtain access to the yinterior of the upper
seen ,in FIG. 2'. Movement ofwheel 44 rotates crank
portion of casing 11. L-shaped corner members .22 are
provided at the corners of the upper portion of Vcasing 11 70 pin 47 in a clockwise direction ycausing the pin to move
against Athe right side (FlG.,2) of ,slot 43 in arm. 49. This
and serve as slide guides for the doors 18», 19 and20.`
moves arm 49 yand table 30 to which it is attached to the
The movement of the doors downwardly is limited by L
3,020,917
4
3
right of FIG. 2. As the crank pin 47 passes its lower-most
position in slot 48 it bears against the left side of each
and other disadvantages of prior dishwashing apparatus
slot and causes the arm 49 and table 30 to reverse its
in providing novel means to maintain the wash liquid and
the rinse liquid, after being sprayed onto the dishes to be
movement and move to the left of FIG. 2.
cleaned, separate whereby wash liquid substantially un
When the
pin 47 passes its uppermost position in slot 48 it again
bears against the right side of the slot. In this manner,
reciprocal movement is imparted to table 30 and dish
rack 36 >as wheel 44 rotates.
Wash liquid compartment 29 has a bottom plate 56
diluted by rinse water may be recirculated in subsequent
washing cycles. To this end, a trip tray 82 (FIG. 2) is
provided in cleaning chamber 27 immediately above wash
liquid compartment 29. Tray 82 is substantially square
and is provided -along opposite edges, extending parallel
which is secured to the casing 11 in a tluid type manner 10 with front and rear walls 14 and 15, with upstanding wall
portions 83 and 84. Tray 82 has an edge 85 which to
and at the top of said compartment is a shelf-like sup
gether with part of wall portions 83 and 84 extend into a
port member 57 (FIGS. 2 and 3) which is secured to
space between the upper edge of side wall 61 (FIG. 2)
casing 11 along front and rear walls 14 and 15 and along
of rinse drain compartment 58 and the top 59. The edge
side wall 12. Support member 57 is notched at the ends
adjacent side Wall 13 (FIG. 3) to accommodate an elon 15 of tray 82, opposite edge 85, is designated by the numeral
gated box-like compartment 58 extending along side wall
86 and is in proximity to side wall 12 of casing 11; edges
13, and which compartment serves as a rinse liquid drain
8S and 86 serve as fluid flow discharge ends, as will be
compartment as will be more fully explained hereinafter.
brought out presently. Top 59 of rinse drain compart
Drain compartment 58 comprises a top 59 and a bottom
ment 58 is provided with a pair of slots 87 to accom
modate the wall portions 83 and 84 extending into the
60 (FIG. 2) which extend in planes parallel to the plane
compartment 58. A rod 88 is secured to the bottom of
of support member 57 and includes vertical front `and
tray 82, mid-way of edges 85 and 86, in any suitable
rear walls 68a and 68h (FIG. 4) which extend transversely
manner, as by welding, and the ends of the rod are ac
of vertical side walls 61 and 62 (FIG. 2). Bottom 60 has
commodated within slots 89 formed in holding brackets
connected thereto a conduit 63 which, in turn, is con
nected to waste (not shown). Side wall 61 has a hori 25 90 mounted on shelf-like supporting member 57 to piv
otally mount the tray.
zontal flange-like support member 64 which is coplaner
Actuating means is provided to tilt or pivot tray 82 in
with support member 57 and together such members sup
opposite directions about rod 88 as a pivot. The actuat
port a perforated strainer pan 65.
ing means comprises a vertically extending rod 91 which
The washing ñuid or liquid in wash liquid compartment
29 generally comprises a solution of soap and water, and 30 is secured at its lower end to wall portion 84 of tray 82
(FIG. 4) adjacent edge 86, by a locking member 92.
an overñow pipe 66 is provided so that the fluid in the
The upper portion of rod 91 extends through top frame
compartment will not exceed a predetermined level. A
member 42 and into the space within hood 16 where it is
strainer block 67 in compartment 29, on bottom plate 56
bent substantially at a right angle for insertion into a slot
is connected to a pipe 68 which, in turn, connects with
the suction side of a motor-driven pump 69 (partly shown) 35 93 formed in an actuating lever 94, adjacent one end
thereof. Actuating lever 94 is provided at its mid-point
in a motor-pump compartment 7i) of casing 11. A
with a pivot pin 95 mounted in a support 96 secured to
switch 70a (FIG. l) is connected in circuit with the
frame member 42. The other end of actuating lever 94
electrical motor (not shown) driving pump 69 and serves
has secured thereto, by a pin 97, an armature 98 of a
to connect and disconnect the motor from its power sup
ply. The Wash liquid discharged from pump 69 ilows 40 conventional armature spring-biased solenoid 99. As is
well understood to those skilled in the art, the solenoid
into a discharge pipe 71 and a branch pipe 72. Pipe 71
here under consideration includes an armature which is
is connected to a manifold 73 in cleaning chamber 27,
urged out of the solenoid core by a spring when the sole
below table 30, which supplies a feed distributor pipe 74
noid is deenergized, and upon energization of the solenoid
with the wash liquid from compartment 29. Distribu
tor pipe 74 extends parallel to front and rear walls 14 45 the armature is drawn into the core against the action
of the spring. Movement of armature 98 in a direction
and 15 and has connected thereto a plurality of laterally
into the core is limited in its travel by a stop 100 on the
spaced wash liquid spray pipes 75 which extend normal
armature. Considering now the operation of the tray
to the pipe 74 and have spraying orifices therein. A re
actuating mechanism, when solenoid 99 is energized ar
volving rinse liquid arm 77 is rotatably carried on mani
fold 73 and is supplied with rinse liquid through conduit 50 mature 98 moves downwardly (FIG. 4) into the core and
thereby rotates lever 94 in a clockwise direction about
means (not shown) connected to a source of rinse liquid
pivot pin 95. As a result, rod 91 is moved upwardly to
(not shown). Arm 77 is balanced to rotate under a pre
pivot tray -82 in a clockwise direction about rod 88 as a
determined ilow pressure of rinse liquid and provides a
pivot, and movement of the tray in that direction is lim
revolving liquid spray. Branch discharge pipe 72 is con
nected to supply an upper wash spray pipe arrangement 55 ited by engagement thereof with the upper edge of side
wall 61 of rinse drain compartment 58 and by stop 100
above table 30 identical with that disclosed below the
on armature 98, the arrested position of the tray being
table. A manifold 78 communicates with pipe 72 and is
shown in broken lines in FIG. 2. When solenoid 99 is
connected to a feed distributor pipe 78A which, in turn,
deenergized, lever 94 and tray 82 are moved in counter
is connected to laterally spaced spray pipes 79. A second
revolving rinse liquid arm 80 is rotatably carried by mani 60 clockwise directions by armature 98 and rod 91, respec
tively. The movement of tray 82 is arrested by engage
fold 78.
ment of edge 85 with top 59 of rinse drain compartment
The subject dishwashing apparatus is operable in a
58 so that the tray assumes the full line position shown
wash cycle and a rinse cycle whereby the dishes are
in FIG. 2.
sprayed by wash liquid or water to wash the same during
In operation, door 18 is moved upwardly and dish rack
a predetermined period of time, and after a short inter 65
36 having dishes therein is positioned on table 30; there
val of time the dishes are sprayed with rinse liquid or
after door 18 is moved downwardly. If it is desired to
water for another predetermined period of time. In
operate the dishwashing apparatus in a wash cycle sole
dishwashing apparatus of the kind disclosed herein the
noid 99 is maintained in a deenergized condition, whereby
cleaning power of the Wash liquid is not completely de
pleted in one washing cycle and therefore it is recircu 70 the tray actuating mechanism and the tray 82 assume the
positions shown in FIG. 4 and the tray (in FIG. 2) the
lated for use in a subsequent wash cycle. However, in
full line position. Switch 70a is then actuated to energize
conventional dishwashing apparatus, a disadvantage exists
that the liquid used is collected in admixture with the
the motor (not shown) driving pump 69, whereby wash
liquid from wash liquid compartment 29 is delivered by
wash liquid to be recirculated and consequently, the wash
liquid is diluted. The present invention overcomes this 75 pump 69 through discharge pipes 71 and 72 to upper and
5
3,020,917î
lower wash spray pipes 79 and 75. The washing liquid
is projected upwardly -through the spray orifices in pipes
75 in a plurality of streams passing upwardly through
accommodating an article to be cleaned, wash spray means
for spraying awash liquid onto the article to be cleaned
the dish rack 36 and over dishes therein while the wash
during the wash cycle, rinse spray means for spraying a
liquid from spray pipes 79 is directed downwardly over
the dishes in rack 36. The streams of wash liquid are
under sufficient pressure to cause the foreign substances
on the dishes to be washed therefrom. During the wash
>rinseliquid onto the article to be cleaned during the rinse
cycle, a wash liquid compartment in said casing and dis
posed below the cleaning chamber, said wash liquid com
ing operation described, wash liquid from wash liquid
portion thereof perforated and in communication with
partment having a substantially horizontal top with a
compartment iiows through conduit 52 and nozzles 53 and
the cleaning chamber to permit liow of wash liquid into
said wash liquid compartment for collection therein, a
54 to rotate water-wheel 44 to impart reciprocable move
ment of table 30 and rack 3_6 transversely of the washing
streams of liquid.
a
.
6
means hsrilontally dispssed in ,Said defining Chamber .fsf
substantially fiat tray member horizontally arranged in
said cleaning compartment above the perforated wall por
tion of said wash liquid compartment for intercepting ilow
of liquid after the liquid is sprayed onto the article to
be cleaned, pivot means for said _tray member to permit
The Wash liquid from the wash spray pipes 75 and 79
and from water wheel 44 flows downwardly toward the
wash liquid compartment 29 for collection therein. As
may be seen in FIG. 2, tray >82 is in the path of flow
of the downwardly flowing wash liquid and in the po
sition shown serves to intercept same and deflect the
liquid toward wall 12 of casing 11. The edge 86 of tray
I32 is spaced from support member 57 whereby the de
-flected wash liquid flows over edge 86 and through said
pivot axis extending transversely of the cleaning charn
ber, said tray member having upstanding walls along the
parallel edges extending transversely of the pivot axis of
said tray member to constrain flow of liquid off the tray
member at >oppositely disposed edges thereof extending
space and over strainer pan 65, where the liquid passes
parallel to the pivot axis ~of thetray member, an elon
therethrough for collection in wash liquid compartment
gated box-like compartment deñning a rinse drain com
the latter tov pivot in two directions about a horizontal
l29. lt will be seen that the possibility of wash liquid
partment arranged along one of the oppositely disposed
entering rinse drain compartment 58 is slight inasmuch
edges of the tray member, said rinse drain compartment
as the tray is tilted away from compartment 58 and the
having vertical side walls disposed parallel to the pivot
tray edge 85 is in engagement with top 59 of the rinse
axis of the tray member and vertical end walls extending
drain compartment.
transversely of the pivotal axis, one of the vertical side
When it is desired to operate the subject d_ishwashing 30 walls of said rinse drain compartment being spaced from
apparatus in a rinse cycle, after or before the wash cycle,
the top lthereof to define an inlet in communication with
solenoid 99 is energized through circuitry (not shown)
the cleaning chamber and accommodating said one oppo
whereby armature 98 is drawn into the core of the sole
sitely disposed edge of the tray member and portions of
the upstanding walls of the said parallel edges extending
noîd to effect pivotal movement of the tray member 82
to the broken line position shown in FIG. 2. Rinse liquid 35 transversely of the pivot axis, the top` of the rinse drain
compartment adjacent said one vertical side wall of the
is then caused to flow through conduit means (not shown)
to revolving rinse arms 77 and 80 whereby whirling sprays
latter having a pair of slots therein to accommodate move
of rinse liquid are projected onto the dishes in rack 36,
_ment of the said upstanding walls of the tray member
both from above and below the rack. The rinse liquid
within 4the rinse drain compartment, the top of said rinse
after passing over the _dishes flows downardly and is in 40 drain compartment serving -to limit movement of said
tercepted by tray 8_2 and >deflected or directed toward wall
tray in one direction and the upper spaced edge of said
13 of casing 11 and rinse drain compartment 58. The
one vertical side wall of the drain compartment serving
rinse liquid _flows over edge 85 of tray 82 and through
to limit movement of the tray in the other direction, actu
the space between top 59 ,and the upper edge of vertical
ating means connected to the tray member vfo-r pivoting
wall 61. The rinse liquid entering compartment 5_8 is 45 the latter in the two ldirections, said actuating means being
adapted to pivot the tray member in said one direction
then conducted to waste through drain conduit 63. After
the washing and rinsing cycles the door >19 is lifted and
during the wash cycle whereby wash liquid iiows olf of
the rack 36 along with the clean dishes is removed.
the vtray member at lthe other of said oppositely disposed
edges and passes through the perforated portion of the
It will now be apparent that the present invention pro
vides novel cleaning or `dishwashing apparatus whereby
50
to pivot the tr-_ay member in said other direction during
the rinse cycle whereby the rinse liquid liows off the tray
means are provided for preventing admixture of the wash
liquid to be reused or recirculated and the rinse liquid
which is to ,be .discharged Ato waste. By employing the
tiow deliection means .of the present invention to intercept
the wash liquid _and rinse liquid after they have been 55
sprayed onto the dishes, Atogether with the structure co
operating therewith, .an Veffective Vdishwashing apparatus
is provided which effects an important advantage of pre
venting dilution of the wash liquid to be recirculated for
reuse.
In the foregoing description and in the claims to fol
low the term “cleaning fluid” is employed to define either
top of the wash Aliquid çompartment, and being adapted
member at said one oppositely disposed edge of the tray
member into the drain compartment, and means in com
munication with the Wash'liquid compartment and the
wash spray for recirculating the wash liquid' to the wash
spray means.
Í2. The article cleaning apparatus of claim 1 wherein
the actuating means comprises a solenoid actuated rod
60 connected at the end remote from the solenoid to the
tray member adjacent said other oppositely disposed edge
of the tray member.
3. The larticle cleaning apparatus `of claim l wherein
the top of said wash liquid compartment -consists of a
usable in the cleaning apparatus of the subject invention.
Although one embodiment of the invention has been 65 shelf-like member arranged on and extending from the
wall of the casing containing the cleaning chamber and
illustrated and described in detail it is to be expressly
on the said one vertical side wall of the box-like rinse
understood that the invention is not limited thereto. Vari
drain compartment; and the perforated portion of the
ous changes can be made in the design and arrangement
top of said wash liquid compartment having an adjustable
of the parts without departing from the spirit and scope
wash liquids or rinse liquids so as to broadly cover liuids
of the invention as the same will now be understood by 70 strainer pan supported on said shelf-like member.
those skilled in the art.
What is claimed is:
l. ln article cleaning apparatus of the class described
which operates in a wash cycle and a rinse cycle, a verti
4. In article cleaning apparatus of the class described
which operates in a wash cycle and a rinse cycle, a casing
having a cleaning chamber, means in said cleaning cham
ber for accommodating an article to be cleaned, wash
cally disposed casing having a cleaning chamber, rack 75 spray means for spraying a wash liquid onto the article
3,020,917
to be cleaned during the Wash cycle, rinse spray means
for spraying a rinse liquid onto the article to be cleaned
during the rinse cycle, a wash liquid compartment in
the casing arranged below the cleaning chamber for re
ceiving the wash liquid from said chamber, a rinse drain
compartment disposed below the cleaning chamber and
adjacent the wash liquid compartment, said rinse drain
compartment having an inlet above the wash liquid com
partment and in the cleaning chamber and an outlet con
nected to waste, the wash liquid and the rinse liquid in 10
said cleaning chamber ilowing downwardly toward the
wash liquid compartment and rinse drain compartment
after being sprayed onto the article to be cleaned, a sub
stantially ñat tray member horizontally arranged in the
cleaning compartment and so `as to intercept ñow of liq
uid after the liquid is sprayed onto the article to be
cleaned, pivot means for said tray member to permit the
latter to pivot in two directions about a horizontal pivot
axis extending transversely of the cleaning chamber, said
tray member having upstanding sides along the parallel
edges extending transversely of the pivot axis of said tray
member to constrain ñow of liquid off the tray member
8
adjacent the wash liquid compartment, said rinse drain
compartment having an inlet above the wash liquid com
partment and in the cleaning chamber and an outlet con
nected to waste, the wash liquid and the rinse liquid in
said cleaning chamber iiowing downwardly toward the
wash liquid compartment and rinse drain compartment
after being sprayed onto the article to be cleaned, a sub~
stantially ñat tray member horizontally arranged in the
cleaning compartment and so as to intercept flow of liq~
uid after the liquid is sprayed onto the article to be
cleaned, pivot means for said tray member to permit the
latter to pivot in two directions about a horizontal pivot
axis extending transversely of the cleaning chamber, said
tray member having upstanding sides along the parallel
edges extending transversely of the pivot axis of said
tray member to constrain flow of liquid oiî the tray mem
ber at oppositely disposed edges thereof extending par
allel to the pivot axis of the tray member, an elongated
box-like compartment defining a rinse drain compart
ment arranged along one of the oppositely disposed edges
of the tray member, said rinse drain compartment hav
ing vertical side walls disposed parallel to the pivot axis
ofthe tray member and vertical end walls extending trans
versely of the povtal axis, one of the vertical side walls of
the pivot axis of the tray member, an elongated box-like
compartment defining a rinse drain compartment ar 25 said rinse drain compartment being spaced from the top
at oppositely disposed edges thereof extending parallel to
ranged along one of the oppositely disposed edges of the
tray member, said rinse drain compartment having oppo
thereof to define an inlet in communication with the
cleaning chamber and accommodating said one oppositely
disposed edge of the tray member and portions of the
upstanding sides of the said parallel edges extending trans
spaced from the top thereof to define an inlet in com 30 versely of the pivot axis, the top of the rinse drain com
partment adjacent said one vertical side wall of the lat
munication with the cleaning chamber and arranged to
ter having a pair of slots therein to accommodate move
movably accommodate said one oppositely disposed edge
ment of the said upstanding sides of the tray member
of the tray member and portions of the upstanding sides
within the rinse drain compartment, the top of said rinse
of the parallel tray member edges extending thereinto and
transversely of the pivot axis, the top of the rinse drain 35 drain compartment serving to limit movement of said
tray in one direction and the upper spaced edge of said
compartment serving to limit movement of said tray in
site side walls, opposite end Walls, a top and a bottom,
one of the side walls of the rinse drain compartment being
one Vertical side wall of the drain compartment serving
to limit movement of the tray in the other direction, and
actuating means connected to the tray member for pivot
ment of the tray in the other direction, and actuating
means connected to the tray member for pivoting the lat 40 ing the latter in the two directions, said actuating means
being adapted to pivot the tray member in said one di~
ter in the two directions, said actuating means being
rection during the wash cycle whereby wash liquid ñows
adapted to pivot the tray member in said one direction
oli of the tray member at the other of said oppositely
during the wash cycle whereby Wash liquid ñows 0E of
disposed edges and passes through the perforated por
the tray member at the other of said oppositely disposed
one direction and the upper spaced edge of said one side
wall ofthe rinse drain compartment serving to limit move~
edges and passes into the wash liquid compartment and 45 tion of the top of the wash liquid compartment and being
adapted to pivot the tray member in said other direction
being adapted to pivot the tray member in said other di
during the rinse cycle whereby the rinse liquid flows oiî
rection during the rinse cycle whereby the rinse liquid
the tray member at said one oppositely disposed edge of
ilows off the tray member at said one oppositely disposed
the tray member into the drain compartment.
edge of the tray member into the drain compartment.
5. In article cleaning apparatus of the Class described 50
which operates in a wash cycle and a rinse cycle, a cas
ing having a cleaning chamber, means in said cleaning
chamber for accommodating an `article to be cleaned,
wash spray means for spraying a wash liquid onto the
article to be cleaned during the wash cycle, rinse spray 55
means for spraying a rinse liquid onto the article to be
cleaned during the rinse cycle, a wash liquid compartment
in the casing arranged below the cleaning chamber for
receiving the wash liquid from said chamber, a rinse drain 60
compartment disposed below the cleaning chamber and
References Cited in the file of this patent
UNITED STATES PATENTS
512,683
1,690,449
2,025,592
2,508,999
2,729,219
Cochrane _____________ __ Jan. 16,
Jourdan ______________ _... Nov. 6,
Kelly ________________ __ Dec. 24,
Hirsch _______________ _.- May 23,
Smith ________________ __ Jan. 3,
FOREIGN PATENTS
77,898
1894
1928
1935
1950
1956
ß
Netherlands __________ __ Apr. 15, 1955
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