US2514100A - Dishwasher - Google Patents

Description

Patented July 4, 1950 UNlTED STATES PATENT OFFICE.

DISHWASHER William R. Spaulding, Kansas City, Mo. Application November 13, 1945', Serial No. 628,269

1. Claim.

This invention relates to household appliances of the character commonly referred to as dishwashers and has for its primary aim to provide such equipment as embodies novel and unique means for directing water or cleansing fluid against the articles being washed; structure for driving a specially formed water-scoop that is capable of serving as an air motivating element; and a reservoir for supplying water and detergent to the articles being cleaned.

Other aims of the invention are to provide a dish washer having a specially disposed drain through the medium whereof the wash water may be emptied into a kitchen sink and a reser-. voir mounted to direct streams of water downwardly through the articles being cleaned as the Water-scoop, forming a part of the equipment, forces volumes of water upwardly against the said articles.

Other aims of the invention will appear during the course of the following specification and referring to the accompanying drawing, wherein:

Fig. 1 is a top plan View of a dish washer made in accordance with the present invention.

Fig. 2 is a side elevational view thereof with parts broken away for clearness.

Fig. 3 is a plan view of the water-scoop entirely removed from association with the remaining parts of the machine, and I Fig. 4 is a fragmentary detailed sectional view on an enlarged scale taken on line IVIV of Fig. 3 and looking in the direction of the arrows.

Dish washers have heretofore been used but their complicated character has precluded universal employment particularly in homes where domestic dish-washing should be done without the necessity of operating involved mechanical parts.

The dish washer made in accordance with my invention is inexpensive to produce, easy to 0perate, efficient in action and capable of cleansing the dishes to a point where they are dry and ready for re-use.

In the embodiment of the equipment chosen for illustration the dish washer comprises a tank I!) formed of sheet metal and having a rack l2 therein. This rack is designed to support dishes or'other articles to be washed and the same may be made of wire for the purpose of insuring uninterrupted passage of water from the overlying reservoir I l and from the water-scoop it which is disposed below rack l2. Rack i2 is removably seated in tank in upon supports i8 and these supports hold the bottom of rack l2 well above water-scoop l6 that is rotatably carried medium of a belt 24 This-motor 22. is housed within a case 25 forming a support for tank It and having wheels 28 to lend mobility to the entire assembly.

Water-scoop 16 is of the form shown in Figs. .3 and 4 and comprises a plurality of substantially radial blades 36, each of which is inclined, as shown in Fig. 4, to force fluids upwardly through tank Iii. When water or cleaning fluid is within tank in, scoop I6 lifts the water upwardly through rack I2 and against the dishes or other articles. As this is being done, water with suitable detergent therein is dropping downwardly on to the dishes or articles in rack l2 through perforations 32 formed through the bottom of reservoir M. This reservoir M is of a special character in that it is a lid or cover for the top of tank it! and is hinged as at 34 for movement to and from the closed position. A filler opening 36 having a cover 38 is employed when water is to be emptied into reservoir M.

From the above it will be apparent that counterfiow is established within tank ill by water falling through perforations 32 and by additional water being directed upwardly against the bottom of reservoir M having perforations therein, by scoop it.

A drain tube 40 having connection with the interior of tank 10 near the bottom thereof and as clearly shown in Fig. 2, is shiftable from a position where the open end thereof is above the normal level of water within tank iii to a place where the water may flow from this tank and into a sink or other drain. When all of the water has been removed from tank H} through drain tube 40, reservoir i 3 may be lifted from the closed position and scoop i6 rotated at a high rate of speed to force air upwardly through all of the articles in rack i2 which have been washed and made ready for further use. This air will dry the said articles without removing them from rack I2.

The dish washer is constructed to present a neat appearance and when manipulating the same, handle 42 is utilized to draw the machine from place to place and particularly from dining table to kitchen where the dishes are collected and later washed near the sink. The washer is, therefore, in the character of a quickly movable cart. When water is emptied into reservoir l4, such soap or other detergent as may be needed, is mixed therewith and a thorough cleansing of the articles in tank [2 is insured.

It is realized that dish washers having physical characteristics different from those shown and described may be made without departing from the spirit of the invention or scope of the appended claim.

Having thus described the invention what I claim as new and desire to secure by Letters Patent is:

A dish washer comprising a hollow open top tank capable of receiving a quantity of cleansing fluid; a, reservoir movable to and from a position closing said open top of the tank; a bottom wall forming a part of said reservoir and completely covering said tank when the reservoir is in said position; a cup-shaped dish-receiving,

foraminous basket in the tank, said basket being disposed below said reservoir bottom and spaced against said bottom of the reservoir, said reservoir bottom being provided with a plurality of perforations for receiving some of the fluid being directed upwardly by the scoop, said perforations all being unrestricted whereby to permit free flow of said fluid passing therethrough into the reservoir and free downward return thereof through the perforations by force of gravity from the reservoir, into the tank and upon the dishes in said basket.

WILLIAM R. SPAULDING.

REFERENCES CITED The following references are of record in the file of this patent:

stantially the same; and a rotatable scoop in the UNITED STATES PATENTS Number Name Date 1,390,223 Wolcott Sept. 6, 1921 1,916,806 Myrick July 4, 1933 2,18%,204 Walker Dec. 19, 1939

Images