US2689767A - Dishwashing device - Google Patents

Description

Sept. 21, 1954 G. H. DABRINGHAUS, JR

DISHWASHING DEVICE Filed Aug. 15, 1950 Patented Sept. 21, 1954 UNITED STATES ?ATE.SNT OFFICE 2,689,767 prsHvvAsHING l`nevica -GustavH.Dabringhaus, Jr., Detroit, Mich. Application `August 15, 1950, 'SerialNm 179,483

5 Claims. 1

vThis invention relates to aldishw'asher and more 4particularly yto a dishwasher off the type adapted to'be manually manipulated.

It -is an object of lthis invention to produce "a dishwasher provided with fmeans for discharging, at will, a metered amount of soap into a stream of water.

A further object of `this invention resides in the provision `of a dishwash'ing device which may be connected for operation with a sink faucet, the dishwasher having a 4hollow handle which forms a receptacle for soap. Y

Another object of the invention is to provide a dishwasher having a pump mechanism disposed within the handle for pum-ping a metered amount of liquid soap into a stream of water.

Still another object of the invention resides in the provision of 'a highly compact and Couven-- iently operable dishwashing device which only requires connection to .a sink faucet foroperation.

In the drawings:

Fig. l is a side elevation, partly in section, of the dishwashing device of this invention.

Fig. 2 is a fragmentary `top view of the device partly in section.

Fig. 3 is a sectional view of a modiiied form of valve arrangement for controlling the flow of water through the device.

Referring to the drawings and particularly to Fig. 1, the dishtvashing device of this invention preferably comprises a tubular handle Ii! which is generally cylindrical in form land covered by an outer rubber sleeve I'I At its rear end handle I is provided with a roundedgcontour as at I2, the front end of the handle vbeing closed `by an end wall I which is suitably iianged as fat I5 and secured within the end of handle I as by bracing or the like. At the front end handle I0 is `also provided with a throat I8 which is flanged as at 2i) for connection with handle IIJ. Throat i3 is an elongated member of -circular cross section which tapers from the flange 20 to the discharge end 22. The discharge end 22 of throat I8 has secured thereto a centrally apertured head plate 2B which is threaded as at 26 to receive a cir-cular brush member 23. Plate 24 and brush 28 are angularly inclined to the axis of -throat I 8.

The threaded portion of brush 23 is provided with a shoulder 3!! on which are seated a pair of spaced apart perforated discs 32 and 34. These discs serve to aerate the vwater discharged from throat i3. Water aerated in this manner from a nozzle or the like tends to flow smoothly over l the `surface being washed rather than splashing away from it. This feature of the spaced apart discs 32 and 34 is generally -well'known'andforms no part ci the present invention.

Within handle Ii) there `is arranged a conduit '36 which at its front end extends through wall I4 and projects angularly into throat I8 at its outlet end '38. Conduit 36 at its other end extends through `the Wall portion I2 of handle I0 and is connected with a rubber conduit 40 as by a ferrule 42. Conduit lI is provided at its other end with a fitting 44 adapted for lconnection with the spout 46 of a conventional sink faucet 48. Fitting 4t includes a valve member 50 having a handle 52 which may be turned to control the flow of water through conduit 40.

Handle I'Il is preferably in the form of a stamping having an apertured recessed portion 5d on the top side thereof in which is brazed or otherwise suitably secured a threaded bushing 53. A threaded plug 58 serves as a removable yclosure 'for bushing 56. Y

Spaced forwardly of recess 54, handle lili is provided with another aperturecl recess portion 30 in which is secured, as by screws 62, a valve body '64. Valve body '62! is 'formed with a threaded bore 56 at its upper end which is adapted to `receive an apertured .bushing V(i8. Bushing `68 is provided with va rubber 'washer 'l0 which, when the bushing isfthreaded into valve 64, effectively seals the aperture inthe recess `Ell -of handle I0. Body 64 is formed with a reduced cylindrical Abore 'I2 .in

which is slidably arranged acup-shaped piston y Ill whichis vpreferably formed of leather or aflike V material. Pistonvli is normally biased 'towards the upper end ot here l2 by a compression spring -B. Valve bod-v 64 has formed `integrally therewith nipple portions :'18 Aand 8D. Y ilippls` 'I8 communicatesVwi-th -bore l2 through an opening 82 and isiormed with anenlarged cavity 8H in which is disposed a ball valve 86. A cap -90 threaded over nipple 'i3 is provided with -yan outlet opening 92 of .smaller diameter than ball de. Ball '85 serves as a check valve which closes opening `S2 when piston M moves vdownwardly `in the bore 4'12.

.The other nipple 30 extends forwardly through wall I4 :in sealed relation thereto and is provided with -an `enlarged cavity '94 communicating with bore 'I2V through a smaller passage 93. A ballpiston 14 and has threaded at its other end a head |08 which is arranged to be depressed by the thumb of the operator. Valve body 64 has a small aperture |09 at the upper end of bore 12. Aperture |09 is located such as to be disposed above piston 14 when the piston is at the upper end of its stroke. This aperture |09 produces considerable agitation of the soap within the handle and also provides a ready escape for soap which might leak past piston 14. In the absence of aperture |09 the soap leaking past piston 14 would tend to leak out of the valve around valve stem |04.

i As is shown more clearly in Fig. 2, nipple 80 and tting |02 project axially through Wall I4 and the `outlet end 38 of conduit 36 projects angularly into throat l0, the arrangement being such that the discharge axes of conduit 36 and nipple 30 intersect.

When it is desired to utilize the device for washing dishes, tting 44 is slipped over the end of the spout 46 of faucet 48 and the faucet is turned on. f Thereafter, handle 52 is turned to the on position and water from faucet 48 flows through rubber conduit 40 to conduit 36 and is discharged as a stream through outlet 38 into throat i0. The stream of water impinges against the tapered side walls of the throat and is thereby subjected to a swirling turbulent action. Assuming that handle l has been iilled with a liquid soap through the lling aperture provided at plug 58, soap may be discharged into the stream of water emanating from outlet 38 by simply depressing head |08 on stem |04. When head |08 is depressed, piston 14 is pushed downwardly in bore 12. The downward movement of piston 12 causes the closing of ball valve 60 and the opening of check valve 98 and a predetermined quantity of soap is thereby discharged through fitting |02. When head |08 is released, piston 14 moves upwardly under the influence of spring 16 and, in so doing, check valve 98 closes and check valve 86 opens thereby drawing into bore 12 another charge of soap which is ejected into the stream of water issuing from outlet 38 when the head |08 is again depressed.

It will be noted that each time head |08 is depressed a predetermined charge of soap is discharged through apertured fitting |02. The soap thus discharged is picked up by the stream of water issuing from outlet 38 and a soap-andwater mixture is swirled through throat i8 so that when the mixture reaches the outlet end 22, it is discharged as a mixture very rich in suds. The discharge of a sudsy mixture at brush 28 is not instantaneous when head |08 is depressed. A few moments are required for the soap mixture to travel from outlet |02 through the throat |0 to brush 28. I have discovered, however, that after very little use, the operator becomes accustomed to the operation of the device and is enabled to obtain just exactly the right amount of soap by the manipulation of valve stem |04. I have found that the discharge of a metered amount of soap in this manner results in a more satisfactory operation of the device and that the soap desired in the issuing stream of water can be more accurately controlled in this manner as compared with devices in which the soap is continually discharged as long as the manipulating button on the device is maintained in a depressed position.

It will also be observed that the inlet opening 92 of check valve 18 is disposed adjacent the lower wall portion of the handle. The location of inlet opening 92 enables the supply of soap in handle I0 to be substantially completely depleted before additional soap is added. The supply of soap to the bore 12 is not effected by gravity, however. The soap is admitted in bore 12 by reason of the positive suction created in thebore when piston 14 moves upwardly under the influence of spring 16.

In the modied construction illustrated in Fig. 3, the valve assembly designated 50 in Fig. 1 is replaced by a valve arrangement generally designated ||0. In this form of construction a valve body ||2 is secured to the rear end I2 of handle |0 as by welding. Valve body |I2 has a passage ||4 therethrough, the passage being provided with an enlarged conical seat portion H6. Valve body ||2 has a threaded socket ||8 in which a valve member |20 is adapted to be threaded. Valve member |20 has a needle valve portion |24 which, when the valve is threaded fully into valve body ||2, seats on the conical seat portion ||6 and closes passage ||4 which communicates with conduit 36. Valve |20 has a central passage |22 which terminates at its inner end with radially extending passages |26. Conduit 40 is connected with valve |20 by a ferruled tting |28.

When the device isprovided with the valve arrangement illustrated in Fig. 3, it will be seen that the flow of Water through the device may be controlled simply by rotating handle I0 with respect to valve member |20 or conduit 60. The valve is illustrated in Fig. 3 in the closed position and when handle |0 is turned to unseat needle portion |24, the water iiows from conduit 40 through passage |22 then around the needle head |24 through passage ||4 and into conduit 36. The threaded portion H8 is preferably provided with a relatively coarse thread so that the valve may be fully opened or fully closed with only a slight rotation of handle I0.

It will thus be seen that I have provided a dishwashing device which can be constructed economically and which can be conveniently operated to supply to the water flowing through the device metered charges of soap as desired. The unit is furthermore very compact, the handle |0, which can be conveniently grasped in the hand, also serving as a soap receptacle with the pump for the soap located directly in the soap receptacle.

I claim:

l. A dishwashing device comprising a ltubular handle forming an elongate soap receptacle, a throat portion extending axially from one end of the soap receptacle and separated therefrom by means of a wall, said throat being provided with a discharge port remote from said wall, a liquid conduit extending through said handle and discharging into said vthroat portion, means Within the receptacle forming an enclosed cylinder, the axis of which extends geenrally transversely of the axis of the receptacle, a reciprocable piston within said cylinder, said cylinder having an inner and an outer end, spring means bias ing said piston towards the outer end of said cylinder, means for depressing said piston toward the inner end of the cylinder, said cylinder being provided at its inner end with an inlet port and an outlet passage, said inlet port opening directly into said soap receptacle and said outlet passage opening into said throat at a point adjacent the discharge end of said liquid conduit, said inlet port and said outlet passage being provided with oppositely acting check valves whereby when the piston is depressed the check valve in said outlet passage opens and the check valve in said inlet port closes and When said piston moves in a direction outwardly of said cylinder the check valve in said inlet port opens and the check valve in said outlet passage closes.

2. The combination set forth in claim l Wherein said inner end of said cylinder and said inlet port are disposed closely adjacent the tubular wall of said soap receptacle.

3. The combination set forth in claim 1 Wherein said cylinder has a port adjacent its outer end communicating with said soap receptacle and communicating with said cylinder on the side of said piston opposite said inlet port and outlet passage.

4. The combination set forth in claim 1 Wherein said means forming said cylinder are disposed adjacent the end of the handle from which said throat portion extends.

6 5. The combination set forth in claim 1 Wherein said means for depressing said piston comprises a stern operatively associated with said piston and projecting exteriorly of the handle from the outer end of said cylinder.

References Cited in the file of this `patent UNITED STATES PATENTS

Images