US3773060A

US3773060A - Dishwasher

Info

Publication number: US3773060A
Application number: US00208242A
Authority: US
Inventors: R Byrd
Original assignee: ZWIN IND Inc
Current assignee: ZWIN IND Inc
Priority date: 1971-12-15
Filing date: 1971-12-15
Publication date: 1973-11-20
Anticipated expiration: 1990-11-20

Abstract

A dishwasher made up of a drum and a lid, a rotating water dispensing member in said drum, and a dish rack. The rack is made up of a silverware holder supported on a rack and vertical columns extending upward from the silverware holder supporting a cup rack. The columns extend through gudgeons on rings and are limited in their downward movement by bosses on the columns.

Description

United States Patent [1 1 Byrd [4 Nov. 20, 1973 DISHWASHER [75] Inventor: Richard W. Byrd, Erie, Pa.

[73 Assignee: Zwin Industries, Inc., Erie, Pa.

[22] Filed: Dec. 15, 1971 [21] Appl. No.: 208,242

[521 (LS. Cl. 134/179, 134/182 [51] Int. Cl. B08b 3/02 [58] Field ofSearch 134/144, 176, 179, 134/ 182 [56] References Cited UNITED STATES PATENTS 3,385,306 5/1968 Brater et a] 134/179 X 3,645,791 2/1972 Sadwith 134/144 X 1,681,322 8/1928 Cave 134/176 X Primary Examiner-Robert L. Bleutge Attorney-Charles L. Lovercheck [57] ABSTRACT A dishwasher made up of a drum and a lid, a rotating water dispensing member in said drum, and a dish rack. The rack is made up of a silverware holder supported on a rack and vertical columns extending upward from the silverware holder supporting a cup rack. The columns extend through gudgeons on rings and are limited in their downward movement by bosses on the columns.

3 Claims, 3 Drawing Figures Patented Nov. 20, 1973 3,773,060

2 Sheets-Sheet l RICHARD W BYRD Patented Nov. 20, 1973 3,773,060

2 sheet g 2 FIG. 3 I60 RICHARD w BYRD DISHWASHER STATEMENT OF INVENTION This invention relates to dishwashers and, more particularly, to dishwashers having an improved rack therein.

OBJECTS OF THE INVENTION It is an object of the invention to provide a dishwasher where the dishes remain stationary and the water is supplied to a rotatable hollow arm provided with spray apertures directed to project water from the arm onto the dishes and where the spray apertures are directed so that the emission of water provides a turning momemt to the arm to cause it to rotate.

It is another object of the invention to provide a dishwasher having an improved dish supporting rack.

Another object of the invention is to provide an improved cutlery holding rack in combination with a dishwasher.

With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing and more particularly pointed out in the appended claims, it being understood that changes may be made in the form size, proportions, and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of the dishwasher according to the invention.

FIG. 2 is an enlarged cross sectional exploded view of the water emitting structure.

FIG. 3 is an isometric view of the rack.

DETAILED DESCRIPTION OF THE DRAWINGS Now with more particular reference to the drawings, the dishwasher shown has the basic elements, which are the drum 10, the lid 11, the rack 56 and the rack 61, and the jet assembly 31. The drum 10 is supported on legs 19. The lid 11 may be fitted onto the drum to form a watertight enclosure around the bottom plate rack 61 and the top plate rack 56. Dishes are supported on the racks. The jet assembly 31 freely rotates inside the racks.

A water supply fitting 30 is connectable to a source of water such as a suitable faucet. The fitting 30 is connected by hose 14 to the coupling 16 which connects water through the coupling 16 and T-shaped member 18 to jet assembly 31. The T-shaped member 18 is fixed to the bottom 12 of the drum by screws 33 and held rigidly thereto. The jet assembly 31 is made up of the arms 20, cross fitting 21, downwardly disposed extensions 22 and vertical branch 26. The extension 22 of the impeller extends downwardly and is rotatably received in the T-shaped member 18 and rotates therein. A sealing O- ring is received in the groove 24 of the extension 22 to provide a watertight seal in the opening 23. The arms 20 rotate around under the bottom plate rack 61, propelled by jets of water emitting from the lateral openings 25 in the arms. The lateral openings 25 are formed in the trailing edges of the arms 20 and project water upward and backward onto the dishes in the rack 61. The vertical branch 26 of the jet assembly extends up through the bottom rack 61 and up through the silverware rack 56 and through the

rings

34 and 35 and projects water between the vanes 52 onto the dishes supported on the

racks

56 and 61. The arms 20 rotate freely in the space below the rack 61 and above the bottom 12. The bottom plate plate rack 61 is made up of an outer ring that rests on the shoulder 64 on the inner periphery of the bottom of the drum 10. Radially extending rods 62 have their outer ends fixed to the ring 70 and are bent generally in V-shape at their inner ends. A space for vertical branch 26 is defined by the V-shaped inner ends. The vertically extending rods 60 are fixed at their lower ends to the rods 62 and define spaces for plates supported on edge in the spaces between the rods 60. The bottom plate rack 61 ismade up of the outer ring 70, rods 62 and vertically extending rods 60. The inner ends of the rods 62 define a supporting surface on which the lower ring 50 of the upper rack 56 is received.

The silverware rack, which is a part of the upper rack 56, is made up of the vanes 52 which may be made of flat platelike material. The vanes 52 are fixed to ring 35 and extend radially outwardly and are supported on a bottom of the rack 56. The ring 35 is attached to the inner edges at the bottom of the vanes and ring 34 is attached to the top inner corner of the vanes 52 at their inner edges. The outer edges of the vanes 52 are attached to the lower ring 35. The top ring 59 is attached to the inner ends of the outwardly extending arms 62. The outwardly extending rods 62 are bent outwardly and downwardly, then upwardly and outwardly, and the outer ends are attached to the ring 68 and their inner ends are attached to the ring 59. Columns 27 are received in gudgeons 72 which are integral with the lower ring 35. The columns 27 extend upwardly and are attached each in turn to

rings

48, 58 and 59. Thus the bottom part of the rack 56, which is made up of the ring 50, vanes 53 and center ring 35, may be separated from the top 68.

Another embodiment of the upper rack is shown in FIG. 3. The embodiment shown in FIG. 3 is made up of the silverware rack comprising vanes 152, bottom inner ring 151, outer bottom ring 150, bottom 160, and silverware ring 127. The rings and 151 are integrally attached to vanes 152 and the vanes 152 are disposed above the grid bottom 160. Gudgeons 172 are formed integral around the outer periphery of the ring 150 and the columns 153 are received in the gudgeons 172. An intermediate part of the rack is made up of the cylindrical members 154, lower ring 156 and upper ring The upper ring 158' is integrally attached to the cylindrical members 154 at their upper end and the ring 148 is integrally attached to the cylindrical members 154 at their lower ends. The columns 153 extend up through the cylindrical members 154 and up into the cylindrical members 158 and are received in the gudgeons 172 at their lower ends. The upper member of the rack is made up of cylindrical members 158 having a downwardly opening, blind holes in them, and are integrally attached to the inner ring 159. The outer ring 168 and inner ring 159 are connected together by the members 161 which extend downwardly and outwardly and the members 162 which extend upwardly and outwardly. It will be noted that the columns 153 are square in cross section and the rings 156 and 158'159 and 168, are triangular in cross section. The apex of the triangular cross section of members 162,

rings

156 and 158159 and 168 are all projecting downwardly so that the jets of water from vertical member 26 are diverted by the shape of these rings. The rack shown in FIG. 3 may be supported on a lower rack, such as rack 61 in FIG. 1. The columns 153 have stops 157 on them which limit the downward movement of the cylindrical members 154 on the columns The fact that the rack 156 is made of three separate parts (silverware rack, part A; intermediate rack part B; and upper rack part C supported together by columns 154) makes it possible to mold the rack 156 with known conventional injection molding techniques.

The foregoing specification sets forth the invention in its preferred practical forms but the structure shown is capable of modification within a range of equivalents without departing from the invention which is to be understood broadly novel as is commensurate with the appended claims.

The embodiments of the invention in which an exclu sive property or privilege is claimed are defined as follows:

l. A dishwashing machine comprising a drum having a lid adapted to fit on said drum,

a rack for dishes in said drum,

said rack comprising an outer ring member, spaced gudgeons on said ring member,

a plurality of columns received in said gudgeons,

vertically spaced rings having tube members fixed to the said vertically disposed rings holding them in vertical spaced relation,

said columns extending through said tubes and hav ing stop members engaging the lower end of said tubes,

a large ring, a top ring, said top ring being supported on said columns and outwardly and downwardly extending arms attachcd to said top ring and extending downwardly and upwardly and then outwardly and up-wardly providing a crotch to support plates thereon and attached to said large ring at their outer ends, said outer ring has an inner ring disposed concentric thereto and spaced radially extending and vertically extending vanes fixed to said outer ring and to said inner ring, a grid fixed to said outer ring and to said inner ring providing a bottom for silverware,

and spray means for impinging water on said dishes supported on said rack.

2. The washer recited in claim 1 wherein said rings and said columns are rectangular in cross section and a cover of said rectangular cross sections faces said spray means.

3. The washer recited in claim 2 wherein said spray means comprises,

a T-shaped member made of tubular members,

said T-shaped member having an extension rotatably received in a water supply,

one said tubular member extending through said rings to project water thereon,

one radially extending said tubular member being disposed below said shoulder,

and openings in the trailing edges of said bar of said T-shaped member for discharging water and rotating said T-shaped member.

Claims

1. A dishwashing machine comprising a drum having a lid adapted to fit on said drum, a rack for dishes in said drum, said rack comprising an outer ring member, spaced gudgeons on said ring member, a plurality of columns received in said gudgeons, vertically spaced rings having tube members fixed to the said vertically disposed rings holding them in vertical spaced relation, said columns extending through said tubes and having stop members engaging the lower end of said tubes, a large ring, a top ring, said top ring being supported on said columns and outwardly and downwardly extending arms attached to said top ring and extending downwardly and upwardly and then outwardly and upwardly providing a crotch to support plates thereon and attached to said large ring at their outer ends, said outer ring has an inner ring disposed concentric thereto and spaced radially extending and vertically extending vanes fixed to said outer ring and to said inner ring, a grid fixed to said outer ring and to said inner ring providing a bottom for silverware, and spray means for impinging water on said dishes supported on said rack.

3. The washer recited in claim 2 wherein said spray means comprises, a T-shaped member made of tubular members, said T-shaped member having an extension rotatably received in a water supply, one said tubular member extending through said rings to project water thereon, one radially extending said tubular member being disposed below said shoulder, and openings in the trailing edges of said bar of said T-shaped member for discharging water and rotating said T-shaped member.