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 positionedrunners 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 extendingportion 25 defining the orice, with an outwardly extendingperipheral flange 26. The upwardly extendingportion 25 is impressed with beads orteats 21 to hold-the exteriorly threadedring 28 surroundingportion 25 and. -retained against inadvertent displacement by engagement with the underside oftheperipheral iiange 25.

The charging and discharging orice is closed with an interiorly threadedcap 29 adapted to engage the exteriorly threadedring 28 and provided with a centrally locatedsocket 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, theedges 32 of the sheet 3l bearing against the shoulder v33 formed in the underside ofcap 29.' A iuid tight joint is produced by inserting thev rubber or4fabric washer 34 betweenflange 26 and the peripheral portions 'of cap liner 3l.Cap 29 is closed tightly againstwasher 34 and maintained in position against inadvertent displacement bye wire 44 passing throughholes 45 drilled in the cap adjacent the periphery thereof and the drilledlug 46,wire 44 being sealed with asealing 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 theorifice 25, athimble 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 theteats 38 formed in the thimble. The valve proper is a resilient member such as therubber disc 39, seen in plan in Fig. 4, which is carefully slitted, as at 40, that rests upon the upper edge offlange 36 and is maintained in proper position by means of the interiorly threaded cap 4I which bears the disc against theflange 36.Cap 4| being formed withthev socket portion 42, the central portion of thedisc 39 andslit 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 passingwire 485through drain 43 and ahole 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 aninner conduit portion 45 terminating at one end in the outwardly extendingflange 46 engaging the interiorly threadedcollar nut 41 adapted to be fastened to the exteriorly threadedring 28 upon removal ofcap 29 and cap liner 3l, and anouter nozzle portion 48, the internal diameter of which is less than that ofinner conduit 45.

Acurved conduit 49 has uid communication withspout portion 45 aswell as with the reduced end ornozzle 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 ofconduit 49 through the port orbreather hole 50 positioned inconduit 49 between lthe point of communication ofconduit 49 withspout 45 andnozzle 48 and preferably in that portion ofconduit 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 throughport 50 which entersspout 45 and dueto the relatively restricted opening innozzle 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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