US1534859A - Dispensing device - Google Patents

Description

April 21, 1925' A. J. MARTIN DISPENSING DEVICE Filed June 6, 1922 2 Sheets-Sheet l INVENTOR:

ATTORNEY April 21, 1925.

1,534,859 A. J. MARTIN DISPENSING DEVIQE Filed June 6, I922 2 Sheets-Sheet 2 INVENTOR:

ATTORNEY I Lmwm lay 23:: Km

Patented Apr. 21, 1925.

UNITED STATES 1,534,859 PATENT OFFICE.

ARCHIBALD JOHN MARTIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO VIC- TOR C. DBEISBACH, OF PHILADELPHIA, :PIENNSYLVANIA.

DISPENSING DEVICE.

Application filed June 6,

. pastes and other similar substances.

' of my device.

An object of the invention is the production of a sanitary, self-containing device of the character in question, particularly adapted for use either in the home or in public places to deliver a predetermined part of its contents, preferably ina ribbonlike form, directly to the brush or hands without contact of the person with the main supply.

A further object is the shutting off of the contents of the device from the outer atmosphere, thus preventing contamination or evaporation and consequent caking of the material.

Referring to the drawings which are illustrative merely by way of example of preferred forms of my invention: t

Figure 1 is a vertical diametrical sectional view.

Figure 2'is a plan view with parts broken away to the line 2-2 of Figure 1.

Figure 3 is a transverse section on of Figure 1.

Figure 4 is a transverse of Figure 1.

Figure 5 is a plan view of a modified form Figure 6 is a vertical-section on of Figure 5,- diametricallythrough the resers voir. Similar numerals refer to similar parts throughout the several views.-

serew cap 9 for. removal to r'e lenish the contents of the jar, and is provi ed with an opening 10 for the passage, of the feed con,-

duit 11, the lower-end 12 of which is .in-'

serted into the reservOiit'Sand is'threadedf' at 13 to receive the -threaded neck 14 of piston element 15 which-com rises the lates to provide a vaccordin, g;ly.

16 and 17 suitably -forme peripheral groove-18 .to receive gasket 19 adapted to fit against the. walls of reservoirsectionon diate the ends of extension 12 ofconduit 11 1922 Serial No. 566,344.

8. The coil sprin 20' embraces the extension 12 of the eed conduit and exerts tension between top 9 of the reservoir and the piston 15 and to force the piston downwardly upon the contents, finally reaching the bottom of the reservoir in the position shown in Figure 1.

-The'upper section 21 of feed conduit 11 is separable from the lower portion 12 by the threads shown at'22, and is provided with delivery spout 23 and opening 24 for rod 25 which is connected at its lower end withthe measuring piston 26. The piston is provided at its upper end with washer 27 held in place by nut 28 to prevent leakage from the device or passage of air around piston'26. The chamber 29 of the a piston is threaded at 30 to receive the adjustable threaded valve-seat element 31 provided with valve 32 limited in its movement from its seat by the stop pin 34. A circumferential' groove 35 is formed about the exterior face of piston 26 in position to register with opening 36 in the delivery nozzle 23 when in depressed position. The groove 35 communicates with a plurality of radial passages 37 which in turn communicate by the passage 37 with the chamber 50.

Figure 1 shows piston 26 in elevated position, in which position inlet opening 36 to spout 23 is closed. In the modified form shown at Figure 5, the similar measuring piston there numbered 68 is in the depressed position and communication therefrom to spout is provided.

Valve seat 38 is suitable secured intermeand is provided with valve 39 held against displacement in chamber 40 by the pin 41 in valve seat element 42. Spring 43 is provided between element 38 and the lower end of the piston26 tendin normally to maintain the piston yielding y in the elev a f Y vated The jar or reservoir .8 is fitted-with-the sition shown in Figure 1. At t e upper end of rod 25 there'is provvided the attached manually engageable knob 44 and the cooperating stop nut 45,

both threaded to rod 25 as shown in Figure 1. It will be clear that by the position of nut 45 onrod 25 the length of movement of the rod 25 carrying the measuring piston 26 will be controlled and thereby the amount of material delivered at the spout yar ed so as to discharge from a narrow slit 67. This causes the material to be delivered therefrom in a ribbon-like form which is desirable in the case of a semisolid substance such as tooth paste or shaving cream.

In the operation of my device, the material in reservoir 8 will be under constant pressure from spring-controlled piston element 15 which will initially be in an elevated or partly elevated position. This tends to force the material up conduit 12 through valve-controlled openings 46 and 47, lifting valves 39 and 32 from their seats and against stops 41 and 34 respectively, and into the measuring chamber 50. Upon the application of pressure to knob 44, piston 26 is pressed against the tension of spring 43 and the pressure 0n the plastic material causes the valve 39 to seat itself, thus preventing the material from passing down through opening 46. It will be understood that the measuring piston device, indicated generally by the numeral 26, and the valve cage including the threaded chamber element 30, and valve seat 31, form with rod 25 a unitary structure, relatively movable with respect to discharge spout23. As the piston element 26 is pressed downward, the shaving cream or other material is forced through passage 37 and radial passages 37 into groove. 35, and therefrom through delivery nozzle 23 as and when groove 35 overlaps to some extent the inlet 36 to the nozzle. It will be clear that the amount of delivery to the nozzle is dependent upon the extent of movement of piston element 26 which is limited by the position of nut on rod 25.

It is obvious that any pressure applied to the knob 44 for the purpose of exuding material from the spout 33 will be additional pressure applied to the piston 15, augmenting the tension of the spring 20 in forcing the material upwardly through the neck 14 and passage 46.

On removalof ressure from knob 44, piston 26 is force upward by spring 43 and valve 32 closes on its seat and prevents the material in chamber from flowing back into chamber 40. The closing of the opening 47 by valve 32 and the upward movement of the piston new tends to create a vacuum in chamber 40 which as sists spring 20 in forcing the cream into section 12 of feed tube 11 through valvecontrolled opening 46, thereby filling section 12 and causing the device to be ready for further operation.

1t is obvious that the operation of this device will depend to a certain extent upon the material employed. The material to which this invention is directed is of a resilient nature, so that it may be coinpressed to a very limited extent to provide for the movement of the piston from the position shown at Figure 1 to such position that the groove will communicate to some extent with the port 36. This is but a very slight movement and is intended only as a closure of the device to prevent entry of air to the contained material. It is possible that there might be suflicient air space even with non-compressible material, so that the device would operate but it is surely operable with the creams noted in the specification as the material to which it is dirooted in its function.

Figure 6 shows a modified form of my device in which the delivery tube and measuring piston mechanism are placed outside of reservoir 51. In the structure shown the material is forced through channel 52 by piston 53 secured to rod 54 under pressure from spring 55, upward throu h openings 56 and 57, controlled respective y by valves 58 and 59 and out of the chambered measuring pistons 58, through post 63 into nozzle 60 as groove 61 registers with inlet 62 to the delivery nozzle the amount of discharge being controlled by the positions of nut 65 on rod 66 as described .in connection with the form of device shown in Figure 1. It will be understood that rod 54 fitting closely in opening 68 in top 69 of reservoir 51 serves as a guide for the piston 53. It also will be understood that a plurality of the delivery tubes and spouts may be provided as shown in Figure 5 to permit of easy access where the device is used in a public place, such, for example, as a barber shop.

What I claim to be new is:

1. A dispensing device comprising a reservoir, a tube extending downwardly into the reservoir and open at the bottom, a springpressed piston slidable in the reservoir tending to force the contained material upwardly into said tube, a valve rigidly located intermediate the end of said tube, a piston slidable in said tube and spaced from said valve, a valve carried by said piston, an outlet spout for said tube, and means to foilce the piston toward the first mentioned va ve.

2. A dispensing device comprising a reservoir, a tube extending downwardly into the reservoir and provided with a laterally extending outlet, a valve structure rigidly located in the tube intermediate its ends, a piston disposed in said reservoir, a spring interposed between the top and the said piston tending to force the piston downwardly upon the top of the contained material to force said material upwardly into the tube and through said valve structure, a piston located in the tube and spaced from the valve structure, a spring interposed between the piston and the valve structure, an

downward flow, a hollow piston mounted to slide in the tube, a lateral spout mounted upon the tube, an outlet from the interior of said hollow piston to communicate with the said spout when the piston is depressed, means to depress the piston to move'it toward the valve structure, and a valve car- .ried by said piston permitting the upward flow of material but preventing the downward flow.

4. A dispensing device comprisingareservoir having an orificed top, a tube slidably mounted in said orificed topand extending downwardly into said reservoir, a valve structure rigidly mounted intermediate the ends of saidtube, a piston carried on the lower end of said tube and bearing upon the top of the contained material, a spring tending to force the piston downwardly to force material upwardly into the tube, a spout extending laterally from the tube, and a measuring, piston manually slidable in said tube. and provided with orifices communicating, when depressed, with said spout.

5. A dispensing device comprising a reservoir having an orificed top, a tube extending slidably through the orifice of said top and into the reservoir, a piston carried upon the lower end of said tube and engagingthe periphery of said reservoir and bearing upon the contained material, a spring interposed between the top and the piston tending to force the piston downwardly to force the material upwardly through the tube, a valve in saidtube, a piston mounted in said tube, a spout extending laterally from said tube, andmeans to exert manual pressure upon said piston to depress said piston within the tube and add augmented stress to the first mentioned piston.

6. A-dispensing device comprising a reservoir, having an orificed top, a tube extending downwardly through the orifice of the top and into the reservoir, a piston carried at the end of said tube adapted to bear upon the top of the contained material, a spring interposed between the top and the piston tending to move the piston arid tube downwardly into the reservoir to'force material upwardly through the tube, a valve structure mounted rigidly intermediate the ends of said tube, a measuring piston slidably mounted in said J tube, a spring interposed between said measuring piston and said valve structure, a laterally extending spout communicating with the tube, said piston being provided with an orifice adapted to communicate with the spout when the piston is depressed, a valve located in the piston, and means to apply manual stress to depress the piston and to add said force to-the tension of the first mentioned spring.

7. A dispensing device comprising a res- 'ervoir having an orificed top, a tube slidably inserted through the orifice of the top and extending downwardly-into the reservoir, a piston carried at the lower end of said tube engaging the periphery of the reservoir, a spring interposed between the top and the piston tending to force said piston downwardly to force material upwardly through the tube, a valve located intermediate the ends of said tube permitting upward flow of material but preventing downward flow,

a second piston mounted slidably in the tube and provided with a longitudinally extending orifice communicating with laterally extending passages, a valve mounted in said last mentioned piston, a lateral spout positioned tocommunicate with the lateral pas sages of the last mentioned piston when the piston has been depressed througha part of its stroke, a piston rod extending upwardly 'from said piston through the end of the tube, a knob located .upon the end of thepiston rod adapted to'receive manual stress to depress the piston and apply said force to augment the stress of the first mentioned spring.

8. A dispensing device comprising a reservoir, av piston mounted in said reservoir, a

spring tending to move said piston downwardly against the contained material, 'a conduit in communication with said reservoir below the piston, a valve located in said conduit adapted to permit upward flow of the material and preventing downward flow of the material, a piston mounted to slide in said conduit, said piston being provided with longitudinally and laterally extending, communicating passages, a spout extending laterally from said conduit and communicating therewith and in position to communicate with the lateral passages of the piston in certain positions, a spring tending to hold the last mentioned piston at the upward limit of its stroke, and means to apply manual stress to move said last mentioned piston downwardly against the tension of its spring to bring the lateral passages of said last mentioned piston into communication with the said spout. f

' ABCHIBALD J OHN MARTIN.

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