US 2154393 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
pril 11, 1939.
| s. BATES DISPENSING APPARATUS FOR BEVERAGES Filed July 5, 1935 'INVENTOR.
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I IIIIIIIIlI/fl/ e Patented Apr. 11, 1939 PATENT OFFICE 2,154,393 DISPENSING APPARATUS FOR BEVERAG Lawrence G. Bates, Cleveland, Ohio, assignor to Continental Say When Corporation, Cleveland,
Ohio, a corporation of Ohio Application Jul 3,1935, Serial No. 29,071
, 8 Claims.
This invention relates to beverage dispensing;
and it is among the objects of the invention to provide equipment capable of drawing the required amount of the liquid without necessity of 5 great care on the part of the operator. Other objects and advantages will appear as the description proceeds.
To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawing setting forth in detail certain illustrative embodiments of the invention, these being indicative however, of but a few of the various ways in which the principle of the invention may be employed.
In said annexed drawing:
Fig. 1 is a part side elevational, part sectional view of an embodiment of the invention; Figs.
and Figs. 4-8 inclusive, are vertical sectional views showing other'modiflcations.
Referring more particularly to the drawing,
' there is shown a discharge spout and in communi-,
cation therewith a conduit normally extending to a point beneaththe surface' of the liquid to be drawn, and a pump chamber carried'on a closure adapted to close a container holding the liquid to be dispensed. Depending upon the size and character of the container, whether a keg with a bunghole or a demijohn or bottle, the precise form of the closure may vary. In'Fig. 1 the closure element 2 is in the form of a screwthreaded closure adapted to screw onto a thread-' ed container 3, a packing gasket 4 being inter posed, and carried by the closure element is a discharge spout 5 continuing into communication with an extension tube 6. Preferably, the latter has also a telescoping section 1 whereby the bottomof the container may be reached, with allowable variations. Carried also on the closure element is a pump chamber 9, this comprising a metal cylinder slidable or reciprocable on a piston II) which is secured'to the'head ll of the closure" element. The piston I is provided also with a suitablepacking l2, which may be in the form of a flexible element having its margin engaging the inner wall of the pumpcylinder 9. Asuitable expanding means for assuring sealing contact of the packing element I2 with the cylinder wall is desirably applied, such as a resilient or spring-plate backing l3. This with the finterposed packing element may be tightened into place on the head of the closure 2 and 3 are similar views of slight modifications;
by a nut l4. A coil spring Iiiinterposed between' the piston and the pump cylinder 9 serves to normally maintain the latter in its upper or expanded position. Extending through the head of the closure element is an air tube l6 open below to the space above the liquid, and open above to the atmosphere by a port II. A port i8 opens from the tube into the pump cylinder 9 near its upper end.
In operation, this device being suitably attached by its closure element to the container of the 10 liquid, the operator grasps the upper end of the pump cylinder 9' and forces it down. At the same time, the port I1 is closed by the operator's finger, valve-like, and correspondingly the air forced down on top of the liquid occasions a flowdelivery of a corresponding volume of the liquid through the conduit 6, I and through the dischargespout' 5 to the glass or the like to receive it. I
With'a different type of container, having a plain opening, whether bung-hole or bottle, the closure element may take the form of a tapered body 2a, as in Fig. 2, and this again carries a discharge spout .5a and communicating conduit in with telescopic extension 1a; also the pump cylinder 9aof similar construction as in Fig. 1, including the piston Illa, packing ring I2a, return-spring l5a, and air-tube "la, the latter with its ports Ha and l8a. The lower end of the air-tube Hill is closed at the point 20, while lateral-ports 2| are provided above the lower end. The air-tube lGa being secured to the pump cylinder 9a, on the reciprocation of the latter slides through a guide 22 in the L osure, and the latter constitutes a valve for the air-tube ports 2|. As the pump cylinder 9a is pushed down, the air ports 2! are carried below the guide 22 and into exposure or open position. A washer 23 is desirably provided below the air ports 2|, being conveniently seated for instance against a shoulder or enlargement on the lower end of the air-tube 16a. In such construction, the washer 23 not only serves as a 'seal to seal off the air-tube lBa when the pump cylinder is in its upper position, but also serves as a stop preventing accidental removal of the pump cylinder from the piston assembly. In the construction shown in Fig. 1', such accidental removal may be prevented by the provision of a stop-element 25 secured to the lower part'of the pump cylinder 9 in any'suita'ble way. 'Instead of a washer 23 shouldered upon the lower-end of the air-tube IGa, as in the construction shown in Fig. 2, it is in some cases desirable to expand the lower end of the air-tube I61) (see Fig. 3) as at 26, thereby providing a I taper valve such as to 'seal against the tapered lower end 21 of the guide 2212 as a seat. The construction of the pump cylinder, 9b with its contained stationary piston on the closure 2b, and the air-tube with its upper port within the cylinder and its valve-port at the top opening to the atmosphere, etc., are the same as in the constructions just described. Likewise, the liquid discharge conduit 6b and spout.
Instead of an air-tube carried by the pump cylinder and riding in, a guide in the closure element as foregoing, it is in some cases desired to retain the guide function in the form of an imperforate stem I60 (Fig. 4) carried from the top of the pump cylinder 90 and riding not hermetically tight in a guide-way He in the closure element, such,:guideway being sealed at its lower end 29. An air-duct 30 in such case extends from the interior of the pump cylinder to communicate with the air space above the liquid in the container. On return of the cylinder 90- to its upper position after a downstroke for a discharge of liquid, air may re-enter from outside through conduit to, bubbling through the liquid, and again re-fill the cylinder 9c. The pump cylinder here also is provided with the stationary piston lilo, and the return spring I50, as in the foregoing constructions; also the liquid discharge :onduit to, extension 1c, and discharge spout Omitting the return spring I5, etc., as in the foregoing, the pump cylinder may be employed also as anenveloping protector of the closure element, when not in use. As shown in Fig. 5, the closure element 2d carries the stationary piston ltd, provided with its suitable packin ring, etc., and the pump cylinder 9d reciprocates thereon as described. As in the case of the pump cylinder Qc'in the preceding construction an airduct extends from the pump cylinder through the stopper head to communicate with the air space above the liquidin the container, and air for. balance may re-enter from outside through conduit, 8d, bubbling through the liquid, and re-iill the cylinder to. as it is raised. with the absence of a return spring, the pump cylinder Id normally takes its lowermost position, as illustrated, and to such extent securely covers over .the assemblage. The liquid discharge conduit-d, 11d, Id, is as foregoing.
In some cases, in lieu of a piston in cooperation with the pump cylinder, I may employ, as shown in Fig. 6, a collapsible rubber bellows its, this being mounted on a plate or disk 32 carried by -the closure is, and engaging the pump cylinder 9e at. its upper end. The pump cylinder here has a sleeve 34 and a valve port controlled by a closure 2). An air duct 45 extends through the" a valve, a spring '31 serving normally to hold the valve in seated position. Extending. below the valve 38 is a tube 38- which is provided with all ports 39, and which slides in a guide 22a. The liquid discharge conduitle, la, is, is as foregoing. In cases where desired however, an additional valve 40 may be provided on the discharge spout, a
spring ll serving to normally maintain the valve closed against its seat at the end of the discharge spout. This construction may be somewhat further simplified in the form of a collapsible metal bellows 9! or general cylindrical io'rm' (Fig, '7). A suitable non-corrosible metal, as Monel, may be employed,- and the pump chamber thus formed is carried on the plate. or disk 32! of the closure from a point outside to an opening abcye the top oithe liquid. Through the closure there is also provided a conduit 8! opening into the interior of the pump chamber 8!, discharge spent 5) thence leading to without. The discharge spout ll may be'provided also with a valve 40! and spring I, as foregoing. A valve 41, is positioned in relation with the conduit 6!,
and astop means 48, such as a pin transversely placedin the conduit serves as a preventative oi overdisplacement of the valve 41.
In the form shown in Fig. 8', the pump cylinder 90 again coacts with a stationary piston lilo, this being provided with a sealing ring 12g and retaining plate, and nut Mg, as in Fig. 1, etc., also return spring lie. The stationary piston here is in eflectexpanded or supplementedto form a hollow chamber 50 for reception of fluid,
the chamber being inrcommunication with the liquid below by conduit 6g passing through the closure body 29. The discharge spout 50 connects through a double goose-neck to its open end 5| in the lower part of the chamber to. An air port 52 is provided between the pump cylinder 99 and the piston-chamber 50, and a bailie 53 is desirable as a guard against liquid splashing through the port into the pump cylinder to. In
the use of this form of device, as in the foregoing,
the pump cylinder 89' is pushed 'down by the operator and is released, thereby allowing flow of liquid up into the chamber 50, which upon being filled, flows of! through the discharge p ut 80.
Other modes of applying the principle oi the invention may be employed, change being made as regards the details descrlbed, provided the features set forth in any of the following claims, or the equivalent of such, be employed.
claim as my invention:
tainer for beverages, etc., which comprises a closure adapted to seal the outlet of a container for liquids, a piston on said closure, a pumping cylinder slidably mounted on said piston, an air conduit communicating with the interior of the cylinder and extending through the piston and closure, said air conduit being reciprocable in said closure, a valve at the lower part oi said conduit for controlling communication with the container, and a dispensing conduit extendin through the closure and adapted to communicate from liquid in the container to a discharge spout outside and preventing contact of the liquid with the inner surface of said hollow reciprocableelement. a
2. Dispensing apparatus for applying to t container for beverages, etc., which comprises a closure adapted to seal the outlet of a container for liquids, a pumping chamber including a stationary plate mounted directly upon and overhanging and protecting said closure and a hollow displacement element reciprocable on said plate to accomplish dispensing of a charge oi! the liquid, and conduit means extending through theclosure and adapted to communicate from liquid in the containerto a discharge spout outside and preventing contact of the liquid with the inner suriace of said hollow reciprocable element, said stationary plate being set closely oversaid con- I therefore particularly point out and distinctly dilit, and the liquid end 01 said conduit means closure adapted to seal the outlet of a container for liquids, a stationary plate on said closure, a hollow displacement element reciprocable on said plate for dispensing of liquid from the container, coacting guide and guideway elements through said closure, one of said elements being connected to the reciprocable hollow element, the other extending through said closure, and conduit means extending through the closure and adapted to communicate from liquid in the container toa discharge spout outside and preventing contact of the liquid with the inner surface of said hollow reciprocable element.
5. Dispensing apparatus for applying to a container for beverages. etc., which comprises a closure adapted to seal the outlet of a container for liquids, a stationary plate on said closure, a hollow dispacernent element reciprocable on said plate, an imperforate guideway through said closure, a guide element in said guideway connected to the reciprocable element, and conduit means extending through the closure and adapted to communicate from liquid in the container to a discharge spout outside and preventing contact of the liquid with the inner surface of said hollow reciprocable element,
6. Dispensing apparatus for applying to a container for beverages etc., which comprises a closure adapted to seal the outlet of a container for liquids, a stationary plate on said closure, a hollow displacement element reciprocable on said plate, a guideway through said closure, a tubular element in said guideway connected to said reciprocable element and having communication therethrough to the atmosphere, and conduit means extending through the closure and adaptedto communicate from liquid in the container to a discharge, spout outside and preventing contact of the liquid with the inner surface of said hollow reciprocable element.
7. Dispensing apparatus for applying to a container for beverages, etc., which comprises a closure adapted to seal the outlet of a container for liquids, a stationary plate on and extending beyond and protecting said closure, a hollow displacement element reciprocable on said plate. conduit means extending through the closure and adapted to communicate from liquid in the container to a discharge spout outside and preventing contact of the liquid with the inner surface of said hollow reciprooahle element, a tube within said hollowdisplacement element, and an air inlet port in the top of said hollow reciprocable element-communicating with said tube, said tube extending through said closure.
8. Dispensing apparatus for applying to a container for beverages, etc., which comprises a closure adapted to seal the outlet of a container for liquids, a stationary piston on said closure,
a pumping cylinder reciprocable on said piston to a position enveloping the closure, and conduit means extending through the closure and adapted to communicate from liquid in the container to a discharge spout outside and preventing contact of the liquid with the inner surface of said hollow reciprocable element, said conduit means in part at least being enveloped by the reciprocable element when in its lower position.
LAWRENCE G. BATES.