US 2294236 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
M. w. LEVERNIER 292945236 PEDAL OPERATED HYDRAULIC FLUID DISPENSER Filed Nov. 8, 1940 2 Sheets-Sheet 1 Aug. 25, 1942. M. w. LEVERNIER 2,294,235
' PEDAL OPERATED HYDRAULIC FLUID DISPENSER v Filed Nov. 8, 1940 2 Sheets-Sheet 2 fnveni ar'" jlfarlz'zz, Mieverzzzer Patented Aug. 25, 1942 UNITED STATES PTENT OFFICE PEDAL OPERATED HYDRAULIC FLUID DISPENSER 4 Claims.
My invention is concerned with pedal-operated fluid dispensers, ordinarily intended for dispensing liquid soap by foot pressure to a point above a wash-basin, for the customary usage, and is designed to produce a simple and efficient structure in which the power exerted on the foot pedal is transmitted hydraulically to a pump in the container located adjacent the basin.
To this end, it consists of certain novel com binations of elements which will be described in detail in the following specification, and defined in the claims.
To illustrate my invention, I annex hereto two sheets of drawings in which the same reference characters are used to designate identical parts in all the figures, in which- Fig. 1 is a front elevation of the upper portion showing the dispenser and the operating pedal;
Fig. 2 is a vertical cross section on the line 22 of Fig. 1, on a much larger scale;
Fig. 3 is a horizontal section on the line 3-3 of Fig. 2; and
Fig. 4 is a vertical section on the line 4-4 of Fig. 1, on an enlarged scale.
In what may be called the stationary type, I employ a supporting member [0, which may consist of the elliptical body ll provided With holes i2 by which it may be screwed or otherwise secured to the wall at a convenient height above the wash-basin or other object with which it is to be used. Projecting from the lower end is a lug l3 having a vertically extending aperture [4 adapted to receive the stud l5 threaded into the lug l5 projecting from the side of the internally threaded cap I! intended to be screwed onto the threaded top of the container I8, preferably made of glass, and preferably having the annular flange 19, between which and the bottom of the cap is located the rubber washer 20. Detachably to secure the cap I1 and container I8 in place, I employ the thumb-screw 2i threaded into the side of the lug [3, with its flat end entering the recess 22 formed in the stud [5.
The cap H has a cylindrical portion 23 extending downward, with its interior bored out to form a bearing for the hollowed lower end of the cylindrical reciprocating member 25, the upper end of which carries the piston 25 and washer 21 adapted to reciprocate in the barrel 28 formed on the outer end of the extension 29 projecting from the upper end of the supporting member ID. A passage 30, cored in the extension 29, has fitting tightly in the vertical end thereof a tube 3|, the other end of which is similarly fitted into the top of the passage 22 in the bottom of the flange 33 formed on the rear of the supporting member by the generally elliptical shallow recess formed in the back of said supporting member. A union 34, secured on the upper end of the unstretchable flexible tube 35, is screwed into the passage 32, and the other end of the tube 35 is passed through the aperture 36 into the interior of the base piece 3'! and is connected by the union 38 with the bottom of the barrel 39 formed in the center of the disk 40 secured on the top of the base piece 3l by the screws 4|. A foot piece 42, secured on the top of the rod 43, sliding through the bearing formed in the disk 44, held on the top of the disk 40 by the split wire ring 44, held in the annular semi-circular channel 46 formed in the interior of the annular flange 41, projecting upward from the top of the disk 40, operates as a pedal. A similar split wire ring 48 in a smiliar annular semi-circular channel 49 in the bottom of the barrel 28 permits the removal of the piston 26 from the barrel 28.
Below the rod 23, and forced downward thereby against the opposition of the helically coiled expanding spring 5|] in the barrel 39, is the plunger 5| and the washer 52. A similar spring 53 in th hollow 24 tends to hold the piston 26 upward, and is spaced in the barrel 29, the tubes 35 and 31, the passage 30, and the barrel 28 above the washer 21, is filled with a suitable transmission liquid, such as a mixture of glycerine and alcohol, and as a result, when the foot piece 42 is depressed, the reciprocating member 25 is correspondingly depressed, and both are returned by the springs 50 and 53. Threaded into the bottom of the portion 23, is the tube 54, having secured on its lower end the top 55 of the pump barrel 56, the tapered lower end of which has the opening 51, closed by the check valve 58. A piston 59 is threaded on the end of a small tube 60 extending upward inside of the tube 54 and having its upper end threaded into a right angular passage 6| formed in the reciprocating member 25, the other end of which has threaded into it the spout 62, so that when the pedal is operated and the reciprocating member 25 and the tube 6|] are depressed, a charge of the liquid will be forced upward through the tube 60 and out of the spout 62. As they rise, a charge of the liquid will be drawn up through the aperture 51 into the barrel 56, Where it is held by the check valve 58. A vent hole 63 near the bottom of the tube 54 revents air being compressed in the tube 54.
To replenish the liquid supply without removing the cap, I provide the opening 64 in said cap, closed by the swinging cover 65.
While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and I do not desire the interpretation of the claims to be limited, except as may be necessitated by the state of the prior art.
What I claim as new and desire to secure by Letters Patent of the United States is:
1. In a liquid dispenser, the combination with a supporting member, of a container, a cap for the container carried by the supporting member, a pump in the container, a reciprocating member in the cap operating the pump and carrying a discharge spout, a barrel in the supporting member, a piston in said barrel carried by the reciprocating member, a base piece having a piston barrel therein, a piston operated by a pedal in said piston barrel, tubular connections between the top of the supporting member barrel and the bottom of the base piece barrel, a spring in each of said barrels, and a transmission liquid filling and confined in said barrels and tubular for operating the latter, flexible tubular connections between the outlet of the base piece barrel and the inlet of the supporting member barrel, and a transmission liquid filling and confined in said barrels and tubular connections.
3. A liquid dispenser as described in claim 2, in which the connections consist of a reciprocating member attached to the supporting member piston carrying a tube attached to the piston of the container pump through which the liquid rises to enter the discharge element.
4. In a liquid dispenser, the combination with a container closed by a cap, of means for supporting the container, a piston barrel having a check valve located in the bottom of the container supported by a tube suspended from the cap of the container, a cylinder carried by said container supporting means, a piston in said cylinder, an extension of the piston reciprocating in a guide carried by said cap, a smaller tube opening at its top into said extension and having a piston at its bottom in said piston barrel, a discharge spout extending from the extension and connected with the smaller tube, a base piece having a piston barrel therein, a foot pedal carrying a plunger reciprocable in said second piston barrel, a spring in the second piston barrel to return the foot pedal, a passage in said supporting means to the top of the supporting means cylinder, a tube connecting the bottom of the base piece barrel with the supporting means passage, and a transmission liquid filling the supporting member and base piece piston barrels and the passage and connecting tube.
MARTIN W. LEVERNIER.