US2060512A - Liquid dispensing device - Google Patents

Description

' H. L. MAGILL LIQUID DISPENSING DEVICE Filed Dec. 16, 1935 Nov. 10, 1936.

.mg en QUI/f7 Patented Nov. 10, 1.936

,UNITE-D STATES PATENT- OFFICE LIQUID DISPENSING DEVICE Herbert L. Marn, chicago, n1. Application December 13,1935, Serial No. 54,614

10 Claims. (Cl. 22S-22) 'Ihis invention relates to a mechanism for disnut I2, and the upper end of the plug, I5. The pensing liquids from containers such as bottles, terminal fitting, I4, is screwed onto the threads, by means of air pressure produced by the mech- I3, and remains xed in position, but the nut, anism. It is particularly adapted for dispensing I2, is adjusted on the threads, II, to compress beverages from bottles, especially "carbonated the plug, I5, longitudinally or axially so as to 5 beverages which are charged with a gas which cause to expand radially or laterally to t more would rapidly escape if the bottle or container tightly into the neck, 2, of the bottle. This serves were completely uncovered and the beverage to seal the device in place so that any air presmerely poured therefrom. An object of the insure produced in the bottle will be held against vention is to provide a mechanism which may leakage. 10

be readily fitted into the neck of a bottle, and The hollow stem, 5, of the piston includes an which shall be of sightly proportions and of conannular shoulder, I8, against which the upper venient design for manipulation. Another obend of the spring, 9, reacts, and includes also a ject is to provide a mechanism which can be bridge, I9, which provides a stop for a spring, 2U,

economically manufactured, and' which is associated with a check valve, 2l, which seats 15 adapted to fit bottles of different dimensions. upwardly over a port, 22, in the cap, 23, of the The invention consists in various features and stem. Inlet ports, 24, lead radially from the side elements of construction in combination,- as walls of the cap, 23, to its port, 22, and on the upherein shown and described and as indicated by stroke of the piston air is admitted past the the claims. check valve, 2l, for lling the cylinder, 3. When 20 In the drawing: the piston, 4, is forced downwardly, this air in Figure 1 is a vertical axial section of a bottle the cylinder is driven'through an outlet port, 25, and a device embodying this invention fitted in the bottom wall, 1, past a check valve, 26, thereto. whose spring, 21, holds it normally seated. The

Figure 2 is a fragmentary elevation largely in port, 25, leads to a passage, 28, in the stem, I0, 25 section, as indicated by the line 2-2 on Figure 1. and this passage opens laterally at 29 into an an- Figure 3 is a transverse detail section taken as nular recess, 30, in the terminal fitting, I4. Sevindicated at line 3-3 on Figure 2. eral ports, 3|, lead outwardly from the annular Figure 4 is a transverse section taken as indipassage, 3|), to the interior of the bottle, I. Thus cated at line 4-4 on Figure 2. the air forced from the cylinder, 3, by the down- 30 In the drawing a typical beverage bottle is ward movement of the piston, 4, is transferred shown in section at I, with the mechanism emunder pressure into the upper portion of the botbodying my invention secured in the neck, 2, of tle, thus placing the liquid contents under the bottle. The device includes a pump cylinder, pressure.

3, in which a piston, 4, is mounted for reciproca- The fitting, I4, serves as a coupling between the 35 tion with its hollow stem, 5, extending through lower end of the stem, I0, and a tube, 32, which an opening in the head or top wall, 6, of the cylextends downwardly into the bottle. However, to inder. The cylinder proper may be formed as a provide for bottles of various depths I prefer to die casting with its side walls unitary with the add atelescoping terminal section, 33, to the tube,

bottom wall, 1, and with a guide post or stud, 8, 32, and to ensure a leak-proof connection be- 40 upstanding from said bottom wall for centering tween 'the two sections by expanding the lower and steadying a coil spring, 9, which urges the end of the tube, 32, at 34 to contain a quantity piston yieldingly toward the upper limit of its of soft packing, 35, and a threaded gland or stroke. Extending downwardly from the bottom packing nut, 36, as seen in Figure l. The exwall, 1, is a unitary stem, I0, threaded at II to treme lower end of the tube, 33, may be notched, 45

receive an adjusting nut, I2, and threaded at I3 as seen at 31, to ensure that when it strikes the adjacent its lower end to receive a terminal tbottom of the bottle it will not be sealed against ting, I4. A plug, I5, of flexible material, such as the bottom wall,-the notches, 31, serving as inrubber, is fitted over the portion of the stem just let ports for the liquid which Will be forced up below the threads, II, so as to fit between the the tube, 33, and tube, 32, and also up into the 50 stem and the opening in the neck, 2, of the botpassage, 38, of the stem, I0, when the air prestle, I, in which the device is to be mounted. A sure is applied to the upper surface of the liquid washer, I6, is interposed between the upper end in the bttle, l, by means 0f the pump, as already of the fitting, I4, and the lower end of the plug, described.

I5; and a washer, I1, is interposed between the The liquid being thus under pressure and flll- 65 mg the ouuet tube, u, :2, sa, is ready to be dis- Y charged at will. Such discharge is controlled by means of a valve, 40, of tapered form, whose seat, 4I, forms a portion of a transversely disposed passage, 42, in the bottom wall, 1, of the pump cylinder casting. The valve, 40, has a stem, 43, terminating in a head or button, 44, and extending through a quantity of packing, 45, which is held in position in a recess or pocket, 46, cored in.the bottom wall, 1, of the cylinder casting. A spring, 41, reacts between the head or button, 44, and a washer, 48, overlying the packing, 45, and thus serves to hold the valve, 40, normally closed. The operating button, 44, is thus conveniently located so that when the neck, 2, of the bottle is grasped in the hand the thumb may be applied to the button, 44, so that a slight pressure thereon will open the valve, 40, permitting the liquid to iiow from the passage, 38, into the passage, 42, and through the discharge spout, 48, which is screwed into the threaded end of the passage, 42, as seen in Figure l.

A piston, 4, is shown as consisting of a pair of cup washers, 50, clamped between washers, 5I and 52, by rivets, 53, and this assembly is secured to the lower end of the hollow stem, 5, by a hollow plug, 54, having a head, 55, which may be of octagonal form, as shown in Figure 3. The hollow stem, 5, is anchored against rotation by engagement of an upturned lug, 5|, on the washer, 5I. with a notch, 5, in the lower end of said hollow stem. Just under the head, and gripped between it and thewasher, 52, I interpose a sheet metal member, 55, having an arm, 51, secured under the head of one of the rivets, 53, and having outwardly extending lugs, 58, disposed at such angles to each other that one of them may be aligned with one of the sides of the octagonal head, 55, when the latter is adjusted to its final position. As seen in Figure 3 this lug may then be bent against the ilat side of the head, 55, serving as "a nut lock to retain it. Another arm, 59, of the member, 58, is oiTset below the washer, 52, in spaced relation thereto and formed so that it can engage under the head, 58, of a screw set into the upper surface of the bottom wall, 1, of the cylinder. Thus, when the pump is not in use, the piston may be forced to the lower limit of its stroke and rotated until this lug, 58, hooks under the screw head, 50, so as to retain the piston in this position against the force of its spring, 8, thus rendering the device somewhat more compact and sightly with the cap, 23, of the piston stem disposed close vto the head, 8, of the cylinder.

As a matter of design, Figure 3 indicates that a portion of the post, 8, is cut away so that its external form is not truly cylindrical. This merely results from the fact that the chamber for the valve, 28, is so located that its circular outline would overlap that of the post, 8, and a portion ot the post is omitted to permit withdrawing the core for this valve chamber in making the cylinder casting. As seen in Figure 4, the stem, I0, is cored to contain both the air inlet passage, 28, and the discharge passage, 38, for the liquid, and the external form of this stem is approximately square with rounded corners, so that when the rubber plug, l5, is compressed around it, the square form of the stem will tend to hold the entire fixture against rotation in the neck of the bottle more firmly than it would be held by friction alone.

It will be seen that the device as described is compact and simple to apply to any standard bottle, and that it will be applicable to a considerable range of sizes of bottle necks by virtue of the adjustability of the soft rubber plug, I5. For tting the device to a still wider range of sizes one or more substitute rubber plugs of diilerent diameters may be supplied as a part of the outfit, if desired. The principal element comprising the pump cylinder, 3, and the stem, I0, being designed for manufacture as a die casting, may be produced economically, and the additional parts may be readily assembled without any extensive machining or fitting. While there is shown and described herein certain specic structure embodying the invention, it will be manifest to those skilled in the art that various modifications and re-arrangements of the parts may be made without departing from the spirit and the scope of the invention, and that the. same is not limited to the particular form herein shown and described, except in so far. as indicated by the appended claims.

I claim 1. A liquid dispensing device comprising a cylinder having a bottom wall with a guide post upstanding therefrom, a piston in the cylinder and a hollow stem for the piston telescopicallymovable over said post with a spring coiled about the post and within said stem normally urging the piston away from said bottom wall, an inlet port in said stem, a check valve for said port opening inwardly, said bottom wall having a discharge port with a check valve therefor opening outwardly, said stem having an outlet passage communicating with said discharge port, and means lfor securing the stem sealably in the neck of a bottle or other container.

2. A liquid dispensing device comprising an air pump including a cylinder having a bottom wall with a stem extending rigidly downward therefrom, a piston in the cylinder, an operating stem for the piston extending upwardly through' the top or the cylinder, a spring normally urging said piston to its upper limit, said bottom wall having an outlet port and the stem havingl a passage communicating therewith, means for sealably securing the stem in the neck of a bottle or other container with said outlet passage opening into the cavity of the container, a check valve for the outlet port in the bottom wall of the pump cylinder, said stem having a second passage and a conduit communicating therewith adapted to extend substantially to the bottom of the container, an outlet for said second passage being formed in the bottom wall of the cylinder and a discharge spout for said outlet.

3. In the combination deilned in claim 2, said conduit including a telescoping section for adjusting its length to the depth of the container and having a lateral opening at its lower end to admit liquid from the container.

4. In the combination defined in claim 2, said outlet in the bottom Wall of the cylinder being formed as a transverse passage including a conical portion which intersects the communicating passage of the stem and a conical valve seating therein to control the outlet with the stem for said valve, and a head on said stem projecting laterally from the cylinder, together with spring iiieans normally holding the valve in closed posi- 5. In the combination defined in claim 2, said stem having a threaded portion adjacent the bottom wall of the cylinder, a plug of elastic material encompassing the stem below said threaded portion, a nut on said threaded portion, a washer interposed between said nut and the plug, and

expand it laterally for sealably securing the device in position.

6. In the combination defined in claim 2, said stem being of non-circular cross-section, a plug of elastic material tted onto the stem, and means f associated with the stem and adjustable thereon for compressing said plug longitudinally to expand it laterally for sealably mounting the device in position.

7. A liquid dispensing device comprising an air pump including a cylinder having a bottom wall with means associated therewith for securing the cylinder to the neck of a bottle or other container', a piston in the cylinder, an operating stem for the piston extending upwardly through the top of the cylinder, a spring normally urging said piston to its upper limit, a headed stud upstanding from the bottom wall, and a lug offset from the under side of the piston disposed to engage under the head of said stud when the piston is depressed to its lower limit and rotated for effecting suchl movement.

8. A liquid dispensing device comprising a cylinder having a bottom wall and means for securing it sealably to the neck of a bottle or other container, a piston in said cylinder, a head for the cylinder having a central opening, a stern for the piston extending through said opening and comprising a hollow member extending through the piston, said stem having an annular shoulder, a coil spring seated against said shoulder and extending downwardly within the hollow stem. to the bottom Wall of the cylinder and stressed to urge said piston to the upper limit of its stroke, a bridge in said hollow stem above said spring, a cap for said stem having laterally opening inlet ducts, a port in the cap through which said ducts communicate with the interior of the stem, a check valve controlling said port and a spring for said valve reacting against said bridge, the bottom wall of the cylinder having a discharge port arranged to communicate with the interior of the container on which the device is moimted.

9. A liquid dispensing device comprising an air pump including a cylinder having a bottom wall with a stem extending rigidly downward therefrom and means for sealably securing said stem in the neck of a bottle or other container, a piston in the cylinder formed with a central opening, a stem for the piston comprising a sleeve extending from the upper side of the piston and a headed sleeve extending through the pieton and threaded to the first mentioned sleeve for clampM ing engagement with the piston, a spring seated on the bottom wall and extending into said sleeves for yieldingly urging the piston to its upper limit, and a lock washer secured under the head of the second mentioned sleeve and independently anchored to the piston, said washer having a lug adapted to be bent into engagement with a noncircular portion of the head oisaid sleeve to lool: it against rotation and having a second lug oliset in a plane below the piston, together with shouldered means spaced slightly above the bot tom wall of the cylinder and positioned so that said offset lug will engage under the shoulder thereof for holding the piston at its lower limit when the piston is depressed and rotated for such engagement.

l0. A liquid dispensing device comprising an air pump including a cylinder having a bottom Wall with a stem extending rigidly downward therefrom, a piston in the cylinder, an operating stem for the piston extending upwardly through the top of the cylinder, said bottom Wall having an outlet port and the stern having a passage communicating therewith, means for sealably securing the stem in the neck of a bottle or other container with said outlet passage opening into the cavity of the container, a check, valve for the outlet port in the bottom wall of the pump cyl-I inder, said stern having a second passage and a conduit communicating therewith adapted to extend substantially to the bottoni of the container, an outlet for said second passage being formed in the bottoni wall oi the cylinder, and a discharge spout for said outlet.

HERBERT L. MAGILL.

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