US2071679A - Vending container - Google Patents

Description

MfE. BRETSCHGER VENDING CONTAINER Feb. 23, 1937.

Filed Dec'. 2 sheets-sheet 1 max EBres-chgep Feb. 23, 1937. M. E. BRL-:TSCHGER VENDING CONTAINER Filed Dec. 1a, 1935 2 sheets-sheet 2 lPatented Feb. 23,` 1937 n vENDlNG CONTAINER Max E. Bretschger, Buffalo, N. Y., assignor to Buffalo Electro-Chemical Company,

Tonawanda, N. Y.

Inc.,

Application December 1s, 1933, serial No. '103,021

3 Claims.

This invention relates to a shipping and vending container for liquids and more particularly toa container and non-gurgling vending or dispensing container for corrosive liquids like hydrogen peroxide. f y

In the vending or discharging of certain types of liquids `from containers it is of the utmost importance that a minimum of splashing occur due to the corrosive or inammable nature of the liquid discharged. Numerous devices have been suggested to serve to this end but all suiIer from some particular disadvantage.

An object of my invention is to provide a ship-` ping and vending'container for liquids', particu-f 1.1 larly hydrogenperoxide from which the liquid can be vended-and discharged without gurgling, regurgitation or aspiration and therefore in a steady stream and with substantially no splashing.

In the drawings: e Fig. 1 shows a vertical section of the improved container;

Fig.. 2 shows a fragmentary horizontalsection through the container and the charging and clischarging orice;

Fig. 3 shows a fragmentary section through the improved safety valve;

Fig. 4 shows the resilient safety valve; 30 Fig. 5 shows the non-gurgling spout and handle for the container; and

Fig. 6 shows the non-gurgling spout and handle connected to the container showing the nongurgling discharge. 35 Referring more particularly to the drawings, a substantially cylindrical container or vessel is shown at lll formed, when designed for storage of hydrogen peroxide, from a lower portion ll lof rolled aluminum, and an upper portion l2 o welded to the lowerv portion at I3. This method of formation insures the production of a conmembraneof the tainer having a minimum of irregularities and seams upon the interior thereof and decreases the possibility of degradation of the contained per- 45 oxide due to the physical effect of contact of the peroxide with excessive surface, sharp edges or a rugose surface. Seams and irregularities in the container are further reducedby forming the ends i4 and l5 of the upper and lower halves of. the container by pressing` or spinning to produce a roundedvinterior edge. This may also prevent strain and crystal ydistortion in the metal which might tend to induce decomposition of sensitive peroxide contained. inthe vessel. 55 Additional strength is imparted to the lower end portion of the container -by forming the. end with an inwardly curved bottom portion i6.

The cylindrical container is provided with upper and lower chimes Il' and ill welded to the exterior surface of the container as at I9 and 2li. To facilitate the positioning of the contain-I er' upon its chimes and toadd additional strength thereto the free and extending portion of the chime is formed with the enlarged portion 2|. Convenient drain holes 43 are formed in the chimes atY suitable places to drain away collected liquid. i

As containers for liquids are often moved from place to place within a plant, the container is provided with exteriorly positioned runners 22 and 23 which circumscribe the container andare of sufcient depth to extend outward'from the container a greater extent than the charging and discharging orice and cap as explained more fully hereafter;

As shown in Fig. 2 the sides ofl the charging and discharging orifice are formed from rolled aluminum sheet Welded to the wall portions' of the container at 24, and having an upwardly extending portion 25 defining the orice, with an outwardly extending peripheral flange 26. The upwardly extending portion 25 is impressed with beads or teats 21 to hold-the exteriorly threaded ring 28 surrounding portion 25 and. -retained against inadvertent displacement by engagement with the underside ofthe peripheral iiange 25.

The charging and discharging orice is closed with an interiorly threaded cap 29 adapted to engage the exteriorly threaded ring 28 and provided with a centrally located socket 30 in which a tool may be inserted to close and open the cap. In order to present a substantially unbroken surface of rolled aluminum sheet to the action of the hydrogen peroxide, the substantially circular piece of sheet aluminum 3l is pressed into the underside of cap-29 to form the cap liner, the edges 32 of the sheet 3l bearing against the shoulder v33 formed in the underside of cap 29.' A iuid tight joint is produced by inserting thev rubber or4 fabric washer 34 between flange 26 and the peripheral portions 'of cap liner 3l. Cap 29 is closed tightly against washer 34 and maintained in position against inadvertent displacement by e wire 44 passing through holes 45 drilled in the cap adjacent the periphery thereof and the drilled lug 46, wire 44 being sealed with a sealing device 41.

Hydrogenperoxide being a volatile liquid and one which will, under certainponditions, *decompose, the container must be provided with a safety edge thereof and substantially in the same sectional plane as the orifice 25, a thimble 35;, the lower end of which projects through and is welded smoothly to the walls of the container,

the upper end terminating in the outwardly projecting flange 3S which retains the exteriorly threaded ring 3l in proper position as do the teats 38 formed in the thimble. The valve proper is a resilient member such as the rubber disc 39, seen in plan in Fig. 4, which is carefully slitted, as at 40, that rests upon the upper edge of flange 36 and is maintained in proper position by means of the interiorly threaded cap 4I which bears the disc against the flange 36. Cap 4| being formed with thev socket portion 42, the central portion of the disc 39 and slit 40 are exposed and excessive pressure within the interior of the container' presses the disc outwardly and opens the slit whereby the excess pressure is relieved. I have found this type of valve very efficient in operation both. with pressuresbuilt up by gases as well as liquids, and have found no leakage of liquid when subjecting the valve to a head of about ten feet or with air pressure of about twenty five pounds per square inch. These requirements are far in excess of the usual operating requirements, since in shipping the .container is normally placed upright with the valve at the top with the liquid level as shown in Fig. 1, while in use the liquid level is as shown in Figs.\3 and 6. Valve cap 4I is secured in place by passing wire 485through drain 43 and a hole 49 in chime Il and secured by sealing means 50.

In order. to provide the trade with a safe means of discharging or vending the peroxide from the container, I provide a discharge spout of special shape which also acts as a handle or lever in turning the ,container when placed in a. rack 1 or upon a gantry. The non-gurgling spout prevents regurgitation or aspiration so common in the usual discharge spouts. The spout, shown in Fig. 5, comprises an inner conduit portion 45 terminating at one end in the outwardly extending flange 46 engaging the interiorly threaded collar nut 41 adapted to be fastened to the exteriorly threaded ring 28 upon removal of cap 29 and cap liner 3l, and an outer nozzle portion 48, the internal diameter of which is less than that of inner conduit 45.

A curved conduit 49 has uid communication with spout portion 45 aswell as with the reduced end or nozzle portion 48 and to prevent gurgling, aspiration or regurgitation upon pouring or vending liquid from the container, uid communication isjhad between the atmosphere and theinterior of conduit 49 through the port or breather hole 50 positioned in conduit 49 between lthe point of communication of conduit 49 with spout 45 and nozzle 48 and preferably in that portion of conduit 49 which is normally the upper or outer. side, as for instance at the outer portion of the elbow as shown in Fig. 5.

It will be seen that a non-gurgling discharge is obtained from my container and spout due to lentrance of air through port 50 which enters spout 45 and dueto the relatively restricted opening in nozzle 48 travels into the container against the current of discharging liquid and so maintains suficient pressure in the container to prevent aspiration or regurgitation and hence permits a non-gurgling discharge.

What I claim is: y 1. A discharge spout for a liquid container comprising an inner conduit portion and an outer nozzle portion, the internal diameter of` the nozzle portion being less than that of the conduit, connecting means upon the conduit for attachment to a container, and another conduit having fluid communication with said first conduit and with said nozzle, said second conduit being curved and having communication with the atmosphere.

2. A dispensing container comprising a vessel having an opening in the periphery thereof, a spout comprising an inner conduit and an outer nozzle portion attached to said vessel at said opening, and a conduit having fluid communication with said rst named conduit and said nozzle curved to form a handle for turning said vessel, and means in said second named conduit communicating with the atmosphere whereby air enters` said conduits and vessel when liquid is discharged therefrom. l

3. A discharge spout for a container comprising an inner conduit portion for connection to a container and an outer nozzle portion communicating with said conduit and having an internal diameter less than that of the conduit, and another conduit connected to said iirst conduit and said nozzle and having uid communication therewith and with the 'atmosphere intermediate the points of connection.

l MAX E. BRETSCHGER.

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