US3011192A - Dishwasher - Google Patents

Description

Dec. 5, 1961 w. B. DELAMATER DISHWASHER 2 Sheets-Sheet -1 Filed April 6, 1959 3 IIIIIIIIIII gmx INVENToR, MLM/w DELF/:4.47525 /f 7 l l Dec. 5, 1961 w. B. DELAMATER DISHWASHER 2 Sheets-Sheet-Z Filed April 6, 1959 1N V EN TOR) WL L/,QM a Awans@ DISHWASHER William B. Delamater, Downey, Calif. Filed Apr. 6, 1959, Ser. No. 804,179 2 Claims. (Cl. 15--74) The present invention relates to a construction which functions as a dishwasher.

Often, due to limited space such as may be encountered in small apartments, mobile type dishwashers cannot be installed. However, almost every kitchen has a sink of some character and the present invention is adapted for placement within the sink. It is contemplated that some rnotive means shall be provided for the dishwasher Wand this may take the form of a garbage disposal unit.

Garbage disposal units now are common and are attached to the bottom of the sink with the mouth end thereof in communication with the drain of said sink.

An object of the invention is to provide a simple effective means adapted to be power driven and which may be positioned within the sink for the purpose of Washing dishes, and other culinary articles.

A further object is the provision of a device of the character stated which is easily removable fromor placed in a sink,twhich does not interfere with nor in any manner cause damage to a power unit for driving the washer, which is eflicient in operation, inexpensive incost of manufacture, and which will perform a satisfactory washing operation. y y

Other` objects will be apparent to those who have need or use for a device of the character of this invention. v

With the above mentioned and other objects in view, the invention consists in the novel and useful pro-vision. formation, construction, association and relative arangement of parts, members and features, all as shown in certain. embodiments in the accompanying drawings described generally and more particularly pointed out in the claims.

In the drawings:

FIGURE l is a fragmentary perspective View showing the dishwasher of the invention within a sink;

FIGURE 2 isan enlarged View, partly in vertical section and showing an embodiment of the invention mountedwithin a sink for contact with the turntable of a garbage disposal unit;

FIGURE E',v is a fragmentary view, partly in section, taken on the line 3-3 of FIGURE 2, and on an enlarged scale;

FIGURE 4 is a fragmentary, sectional View taken on the line 4 4 of FIGURE 2;

FIGURE 5 is a cross-sectional View on the line 5-5 of FIGURE 3;

FIGURE 6 is a fragmentary, sectional view of a slightly modied form of construction from that shown in FIG- URESr 1 to 5 inclusive.

Referring now to the drawings, in FIGURE 1 I have shown a sink 1 mounted below the drainboard Z'with the usual valve arrangement for supplying hot and cold water to the SinkLmounted thereabove, as shown at 3s. The sink 1 has a central drain opening 4. However,'the sink is for illustrative purposes only and may be of the divided type which has two drain openings. The present embodiment of my invention uses one of the drain openings. Primarily the drain opening 4 is in communicantes tion with the interior of a garbage disposal unit 5. This garbage disposal unit is of the ordinary type in that it is provided with a strainer flange member 6 `which is secured within the opening 4 of the sink 1 and depends beneath the said sink. Secured to said strainer flange member 6 is a container body 7 of the disposal unit.

Within the container body 7 is a motor 8, the rotor shaft 9 of which mounts a turntable 10. The top of the turntable carries the usual rotor shredder blades or elements 11, of which there may be a plurality. The rotor shredder blades cooperate with other elements so that Waste material may be shredded when the motor is actuated. As a rule, water is poured into the sink for reception within the shredder 'compartment of the casing and outwardly thereof during a waste disposal operation. This briey describes the garbage disposal unit and the same description will apply to most units now on the market.

The dishwashing devicefor use with the disposal unit includes a bridging plate 12 resting upon the internal flange 13 of the strainer ange member 6. Immediately above and supported on the bridging plate 12 isla cylindrical walled gasket seal 14 having annular peripheral grooves 15 Y and centrally provided With a conical bore 16. As shown, the top of the bridging plate is provided with upstanding pins 17 which are received within the gasket seal 14 so as to hold the two members against relative rotation. The bridging plate is provided with a central screw threaded bore 17a. As stated, the gasket seal 14 and the bridging plate are placed within the strainer flange member. The assembly for dishwashing purposes includes top and bottom platev members 18 and 19, the rims of which plates are received within an annular groove 20 of an'annular gasket 21. The top and bottom plates 18 and 19 are held apart in spaced relationship by means of posts 22. These posts are secured between the plates in any approved manner. Interposed-between the top `and bottom plates are trains of gears. There is one central gear or pinion 23 which meshes with larger diameter gearsv 24 and 25 in diametric A relationship to gear 23 and which gears 24 and 25 are mounted uponvstud shafts 26 and 27 journalled in the bottom plate 19. Mounted upon the stud shafts 26 and 27 and above the said gears 24 and'25 are gears 28 and 29, preferably having the same diameter as the gear 23. Meshing with the gears 28 and 29 are gears 30 and 31 which gears are suitably mounted on spindle type shafts 32 and 33 respectively, the lower ends of the shafts 32 and 33 being journalled in the bottom plate 19 and extending through bores in the top plate 18.

The'central gear 23 is mounted upon the end of a sleeve shaft 34. As shown in FIGURE 3, the sleeve shaft is reduced in diameter at its upper end where the shaft is passed through the bottom plate 19 with the gear 23 mounted in any convenient manner to said shaft. The bore 35 in said sleeve shaft is angular sided, and in FIGURE 3 the bore is substantially square in cross section, while the periphery of said shaft is circular. Surrounding the circular periphery of the sleeve shaft is a tubular sleeve 36 one end of which is provided with an annular flange 37. Included between the top plate 18 and the flange 37 is a ball bearingra'ce assembly designated generally as 38, one race member of which bears against a conical side -wall 39 of the sleeve shaft. Received within the bore 35 is a shaft 40 the vupper portion of which is complementary to the bore 35, that is, 'angular sided or square, while the remaining portion is cylindrical as indicated at 41 for the square portion of said shaft and 42 for the cylindrical portion. The cylindrical portion of said shaft terminates in an externally threaded end 43. To mount the several elements just described, I provide a plug 44 which has a multi-conical side wall as shown at 45, 46 and 47, the conical portion 46 having the same taper as the conical bore portion 48 of bore 16 of gasket seal 14. The tapered wall -49 of said gasket lseal corresponds in taper to the taper 45 of the plug 44. Depending from the lower end of the threaded at 51 for engagement with the screw threads 17a of the bridging plate 12. The plug 44 is centrally bored at 52 and this bore is of larger diameter than the internal dimension 53 of the sleeve casing 50, a construction which provides an annular shoulder at 54. The sleeve 36 has its lower end resting upon the annular shoulder 54 and is fitted within the bore 52. The bore 52 merges with an upper bore 55 which accommodates the flange 37 and the ball race assembly 38. The lower end of the sleeve casing 50 is internally threaded at 56. A cap nut 57 is screw threaded lwithin the threaded portion 56 and the cylindrical portion 42 of the shaft projects through said cap nut as shown. Surrounding the shaft 40 and confined within the sleeve casing S0 is a coil spring 53. One end of said coil spring bears against the lower end of the sleeve shaft 34 while the opposite end bears against a washer S9 fastened to the shaft 40 for constantly urging the shaft 40 to move outwardly through the cap nut 57. Secured to the end of the shaft 40 is a friction shoe 60. This shoe may be formed from any suitable material such as rubber, rubber composition or plastic and may assume various geometrical figures, that in the drawing being substantially frusto-conical in form, the base wall being provided with a central concavity 61. The top of said shoe is provided with an inset nut 62 for engaging the threaded end 43 of the shaft. lThe shoe 60 lies between the blades 11 as shown in FIGURE 2, in frictional engagement with the'turntable top. The concavity 61 overlies the nut 63 which secures the Woodruff key member 64 which connects the turntable 10 with the rotor shaft 9.

In the showing of FIGURE 6, I do not employ the plug 44 but utilize a gasket 70 of annular form provided with the annular peripheral grooves 71. The gasket 70 fits tightly within the confines of the strainer flange member 6. The central bore 72 of the gasket is of uniform diameter. The sleeve type casing has a uniform external diameter, as shown at 73. In this construction, the internal members, to wit: shaft 40, and its connection with its sleeve shaft 34 remain the same as for the form shown in FIGURE 3, with the upper end portion of the sleeve shaft passed through the plate 119.

In the construction shown in FIGURES 1, 2, and 6, I employ a pair of cylindrical brushes 75 and 76 and the shafts for said brushes are of the sleeve type which receive the spindle shafts 32 and 33. Any type of snap fastener may be employed for securingthe spindle shafts to the sleeve shafts of said brushes.

The operation, uses and advantages of the invention just described are as follows:

If a dishwashing operation is' to be performed, the device of the invention, assuming the form shown in FIGURES 2 and 3, is passed through the gasket 14 in such a manner that the plug 44 has tight engagement within the conical bore thereof. Thus the tapered surface 46 of said plug may have a tight engagement with the corresponding conical wall in the gasket by rotating the assembly which is to say, grasping the ring gasket 21 and turning the sarne which will cause the plug to move downwardly within gasket 14 due to the Athreaded relationship between the bridging plate 12 and the sleeve casing 50. It is necessary that a tight seal be provided so that when the sink 1 is filled with water, usually a soapy solution, the solution will not pass into the disposal unit. Upon insertion of the assembly within the disposal unit, the shoe 60 will engage the turntable 10 whereby upon energizing the motor, the shaft 40 will be rotated. Due

to the spring 58, the shaft 40 will be urged outwardly through the cap nut 57 to cause pressure engagement of the shoe 60 with said turntable 10. When the motor S is energized, the gear 23 is rotated and this gear drives the train of gears, to wit: gears 24 and 25 will be rotated in opposite directions. There will be considerable reduction in the turning speed of the brushes and 76 due to the train of gears arrangement,` and in practice the arrangement is such that if the motor rotates at approximately 1000 r.p.m., the brushes will be rotated approximately r.p.m. A person desiring to clean dishes may hold the dishes against either brush as the brushes will be rotating in soapy solution. To clean knives, forks, and spoons, the articles may be passed between the brushes. In actual practice, the device has been found to quickly and efllciently clean all dishes and other culinary articles.

Upon completion of use of the device, for the washing of dishes the brushes may be removed and cleaned, followed by the removal of the housing which contains the gear train, the associated plug and its sleeve casing 50, and the shaft 40 carrying the shoe 60. rhereafter the bridging plate 12 and gasket 14 are removed from the strainer flange member 6. The annular grooves '71 in one instance and 15 in the second instance, aid in assuring tight fit of the gaskets within the strainer flange member. The device yis small, occupies little space, and-is easily stored.

This application covers the dishwasher alone, but broad claims are to be found in my copending application entitled Washing Device Operated by Garbage Disposal Unit, Ser. No. 138,233, iled September l2, 1961.

I claim:

1. A dishwasher for placement in the drain opening of a sink of the type that is provided with a strainer flange and provided beneath the strainer flange with a power driven garbage disposal unit, including: a bridging plate spanning the strainer flange, the bridging plate being formed with a screw threaded central opening, a gasket seal within the strainer llange and resting on the bridging plate, the gasket seal formed with a conical bore, a conical surfaced plug for reception in the conical bore of the gasket seal, said conical plug provided with a depending sleeve externally threaded in part and extending through the threaded opening ofthe bridging plate, the threads of the sleeve engaging the threads of a bridging plate whereby upon rotation of the conical plug the conical surfaces of the plug and the gasket seal are brought into engagement to prevent luid leakage therebetween, a telescopic shaft for engagement with the power driven garbage disposal unit to rotate the shaft, means within the sink to be rotated by the telescopic shaft and a pair of cylindrical brushes in juxtaposition and mounted on. a vertical axis for rotation by said means in opposite directions.

2. The device of claim l, a casing for placement with-- in the sink, the casing including: a pair. of spaced apart plates, an annular gasket surrounding the plates, and said means confined within the casing, the brushes being exterior the casing.

Brown et al. July 20, 1948 2,579,393 Modrey Dec. 18, 1951 2,869,794 Modrey Ian. 20, 1959

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