US2032550A - Liquid dispenser - Google Patents

Description

March 3, 1936. P. A. REUTTER 2,032,550

LIQUID DISPENSER Filed Sept. 26, 1935 INVENTOR P/ZLZL); fliz euer B Y a m a A TTORNE Y Patented Mar. '3, 1936 UNITED STATES PATENT @FFlCE LIQUID DISPENSER Application September 26, 1935,, Serial No. 42,198

3 Claims.

This invention relates to certain new and useful improvements in liquid dispensers such as are used for hand lotions, hair tonics, soaps or other kinds of volatile liquids, and it belongs to that type of dispenser which also forms a closure for a bottle or receptacle, in connection with which it is adapted to be used and operated to discharge specific quantities of liquid when the receptacle is inverted and the dispenser operated to release the liquid.

My present dispenser is an improvement upon that type of dispenser shown in pending application filed March 7, 1935, Ser. No. 9,702, and belonging to the'assignee of this application. Both of these devices are constructed and adapted to be applied to the neck of a bottle or container so that the liquid is dispensed through a tubular plunger forming a part of the dispenser and closure means and whereby successive discharges of liquid may be efiected by repeated operations.

With these and other objects in view the invention consists in the novel features of construccheck valve in the plunger, as will be seen from the drawing and following specification, reference being had to the characters of reference marked on the several figures of thedrawing and of which:

Fig. 1 shows a side elevation on a slightly enlarged scale, of my improved dispenser.

Fig. 2 shows a central vertical longitudinal section of the same, and a neck portion of a bottle to which it is adapted to be threadably attached, indicated in dotted lines.

Fig. 3 is a detached perspective view of the disc valve employed in the lower chambered portion of the casing.

Fig. 4 is a detached perspective view of the easing forming a part of the dispenser, and

Fig. 5 shows a further longitudinal sectional view in an inverted and operated position, such as is required to produce a discharge of liquid as for instance into the palm or other portion of the hand as may be desired.

My dispenser includes two valves, the upper one, mounted in a plunger tube, serves to release the liquid when the dispenser is inverted and its plunger shoved in as indicated in Fig. 5, whereas the lower disc valve is operated by suction, the disc therein being raised and the liquid sucked in as the plunger is released and forced out by the action of its spring thus filling the casing with the liquid from the bottle whereupon the disc valve seats'itself, inclosing the charge of liquid to be released with the next operation of the plunger, the spring seated intermediate the shoulder of the casing and the shoulder of the plunger serves only to operate the latter and .hold 5 it in an extended position.

Referring to the characters of reference marked upon the drawing I0 represents a bottle, II a closure cap which, as will be seen, is formed of sheet metal having a rolled screw thread and a beaded lower edge. The cap is proportioned and shaped to accommodate a packing washer l2 which is seated between the underside of the top of the cap and the edge of the mouth of the bottle. I3 represents a tubular casing which is of novel construction being formed of sheet metal to include an annular shoulder I4 around its upper end portion that is formed against the metal washer l5 positioned against the inner edge portion of the top of the cap so that both the washer and cap are secured between the said annular shoulder l4 and the packing housing l6 formed of the upper end portion of the casing in a way to inclose the packing washers l1 and I8, which are heldwithin the housing by the rolled-in edge IQ of the top of the casing. This obviously forms an assembly in which the plunger 20 is free to reciprocate with the assurance of there being no possible leakage from the bottle.

The plunger 20 is preferably formed heavier than the casing and carries the cup 2 I that forms the contacting member of the dispenser, used to engage the hand or other part of the body when the device is operated to deposit liquid. An annular depending tubular extension 22 is formed on the cup to receive the smaller and top end of the plunger and in practice its lower edge is seated against an annular bead 23 that is' closed in on and against the said lower edge. 40

The valve shown in the upper or discharge end of the plunger is formed of four parts, namely, a light weight cylinder 24 having an' inlet 25 in one end portion, a ball 26 that is normally seated on the inlet, a spring 21 and a ,closure cap 28. The cylinder 24 is closed by the sheet metal cap 28 that has a discharge port 29 formed'therein, the flanged portion of this cap as well as that of the cylinder being secured in the end portion of the plunger 20 first by forming an annular shoulder 30 therein and then turning over the I outer edge portion 3| of the plunger upon the cap in a way to securely hold the cylinder and cap in position. In this connection it will be obvious that the inclosed light spring 21 for holding the ball upon its seat is placed in position in the cylinder 24 along with the ball preparatory to inclosing the cylinder and the cap by turning in the annular edge portion 3|.

The lower end portion of the casing I 3 is provided with a rolled-in groove forming an internal annular shoulder 32 that is positioned above and in spaced relation to the annular valve seat 33.

- This valve seat surrounds the intake opening 34 of the casing and is formed not of assembled or threadedly attached parts but by simply rolling in the edge of the casing. The sheet metal valve 35 is provided with extended guides 36 to engage the side wall of the casing and to hold the edge of the valve at all times in spaced relation to the side wall of the casing so that when the valve is lifted as by suction an opening is formed to permit a free passage of liquid into the casing. In this respect it must be observed that while there has been ample room provided in the lower casing for the movement of the valve yet said movement is somewhat limited, better to insure quick and effective opening and closing movements of the same.

The spiral spring 31 is of a conical shape being larger in diameter at its lower end better to seat itself not only on the annular shoulder but against the inner side walls of the casing, while the upper end is of lesser diameter and is positioned within the annular recess 38 of the plunger. The purpose of this spring obviously is to normally. retain the plunger in its raised position with its annular shoulder 39 seated against the lower washer l8 which serves to limit the outward movement of the plunger, whereas the inward movement of the plunger is limited by the engagement of the bead 23 with the upper washer Hi.

In this connection it will be further understood that with each upward movement of the plunger, a suction is created causing the valve 35 to be lifted and the spring chamber within the casing as well as the chamber within the plunger to be filled. An inward shove of the plunger obviously insures a firm seating of the valve 35; the raising of the ball 26 against the action of its spring in a way to force a given quantity of liquid out through the port 29 whereupon the spring-actuated ball valve promptly seats itself.

Having thus described my invention, what I claim and desire ,to secure by Letters Patent is:

1. In a liquid dispenser of the class described,

a closure cap, a tubular casing secured to and depending from the cap and having an inletin its lower end and its lower annular edge turned in forming a valve seat surrounding the inlet and having an internal annular shoulder formed in the inner wall of the casing in spaced relation to the valve seat forming a valve chamber, a tubular plunger slidably mounted and closely fitted in the casing and having an external annular shoulder on its upper end, a packing washer surrounding the plunger and adapted to be engaged by the shoulder thereof to limit its movement, a spring actuated ball valve in the outlet end of the plunger, a spiral spring within the casing for operating the plunger, one end being seated on the internal annular shoulder of the casing and the other against the inner end of the plunger, 8.

floating valve within the valve chamber normally resting upon the valve seat and adapted to be operated by the action of the plunger to open and close the inlet.

2. In a liquid dispenser of the class described, a closure cap, a tubular casing secured to and depending from the cap and having an annular pocket formed inits upper end portion, said casing being also provided with an inlet in its lower end and having its lower annular edge turned in forming a, valve seat surrounding the inlet and having an internal annular shoulder formed in the inner wall of the casing in spaced relation to the valve seat, forming a restricted valve chamber between the seat and shoulder, a relatively heavy tubular plunger slidably mounted and closely fitted in the casing and having spaced apart external annular shoulders on its upper end, a packing washer for the plunger positioned in said annular pocket surrounding the plunger and adapted to be engaged by the shoulders thereof to limit the movement of the plunger, a spring actuated ball valve in the outlet end of the plunger, a spiral spring within the casing for operating the plunger, one end being seated on the internal annular shoulder of the casing and the other in the inner end of the plunger, a floating valve within the valve chamber normally resting upon the valve seat and adapted to be operated by the action of the plunger in a manner to open and close the inlet.

3. In a liquid dispenser of the class described, a closure cap, a tubular casing secured to and depending from the cap and having an internal annular pocket formed in its upper end portion, said casing being also provided with an inlet in its lower end and having its lower annular edge turned in forming a valve seat surrounding the inlet and having an internal annular shoulder formed in the inner wall of the casing in spaced relation to the' valve seat forming a restricted valve chamber between the seat and shoulder, a tubular plunger slidably mounted and closely fitted in the casing and having an external annular shoulder on its upper end, a packing washer for the plunger positioned in said pocket surrounding the plunger and adapted to be engaged by the shoulder thereof to limit the movement of the plunger, a spring actuated ball valve in the outlet end of the plunger, a spiral spring within the casing for operating the plunger, one

end being seated on the internal annular shoulder of the casing and the other against the inner end of the plunger, a valve within the valve chamber the action of the plunger in a manner to open the inlet. 1

PI-IILIP'A. REU'I'I'ER.

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