US2672998A - Closure for unrefillable containers - Google Patents

Description

March 23, 1954 J. s. DEL LLANO 2,672,998

CLOSURE FOR UNREFILLABLE CONTAINERS Filed May 5, 1950 A T rok/viys,

Patented Mar. 23, 954

Jose Soto del Llano, Havana, Cuba, "assignor'of 1 on'-fourth'ito Ricardo More Ferrer, Havana,

Cuba

Appu'cafiniMay't, 1950, s rial No. 1 0,140

1 Claim. (01. 215-23) This invention relates to closures for unrefill-' able containers, particularly to closures or that kind which are provided with a weight connected to the valve by flexible means, and it has for its object to provide an improvement in the closure device which is" the subject-matter of my United States PatentNo. 2,420,870, granted May 20, 1947. The improvement forming the object of this invention consists in that the valve is carried by a single member in' the shape of a sleeve provided with a top horizontal flange adapted to rest on the container top edge, which sleeve forms a central seat on which the valve is adapted to rest, the lower facelof the latter remaining inserted within the container neck below the level of the joint betweenthe closure horizontal flange and the top edge of the container so that the valve cannot be raised from its seat by means of a perforating instrument inserted through the packing and the outercasing of the olosureat the joint and the top edge of the container, norcan the valve. be destroyed across the top opening of the closure casing. with a view to allowing the passage into the container of a quality for refilling purposes, whereby this new closure is rendered more safe against violations for refilling purposes as well as more economical to manufacture by reason of the fact that the valve carrying member is limited to a single member andthe height of the duced. i

The invention is described with reference to the figures 'ofithe accompanying drawing, of which:

Fig. lis a diametral vertical section view of the closure and a bottleneck provided with the C10}. sure in the normal. or upright position 'of thebottle.

Fig. 2 is -asectional view similar to thatof'Fig; '1, showingthe bottle in an inclined or inverted position." H 5' Fig. ,3 is a detailed View showing the closure outer casing is reoutercasingfpartly. in outer'elevation and partly in diametral vertical section.

Fig. 4 is a detailed bottom plan view of the closure outer casing.

Fig. 5 is a detailed view showing the sole mem ber forming the valve carrying element, partly in elevation and partly in diametral vertical section.

Fig. 6 is a detailed bottom plan view of the sole member forming the valve-carrier.

Fig. 7 is a perspective view of the unborable metal disc that is loosely superposed to thejspaced raised projections formed at the top edge of the valve-carrier.

between the closure horizontal flange liquor of inferior ,interspaces 8 v:forthe passage of liquid ings f I for the passage of the liquid,

both, on top and, at the bottom,

. 2 Fig. 8 isan' out er elevational detailed view of the valve andits guide cross-piece. 3 Fig. 9 is a detailed bottom plan View of the" ,valve'. a a Fig. l0 is a perspective view of the valve and its depending weight.

The closure of this invention comprises a valvecarrierfformed by a single member in the shape ,of a plastic or metalsleeve I adapted to be inll) bottle 2 and provided with a horizontal flange 3 by which it rests on the upper edge of the bottle 2. The sleeve I has a lower horizontal disc 4' provided with a central 'serted in the neck of at opening 5 having a top raised rim 6 forming the seat for the valve, and from saiddiscdownwardly lead a plurality of spaced apart vertical plane wings I disposed radially and having at their lower inner corner a bevelled cut 7 to provide bottletowards the central opening 5 of the disc 4. At the top edgeofjthe sleeve 1' are raised a plurality of spaced apart vertical projections H), as forinstancc fou r in number, which provide opena and the top face of ,whichis adapted to serve as a rest for a loose unborable hard-steel disc 12 adapted to protect the valve. The hollow valve I3 is cylindrical and closed thoughit may be open on top if desired, and from the lower base thereof leads a cross-piecejormed by fourwings I4 and 15,55 dissimilar length those at the differ ent plane, all four win s fmand l5, beinglodged throughthe pentral; opening 5 of the disc 4 to serve ,asa guide for the valve ltinits upward and .ileigible' connection with the ring I6 formedat the 1 0f double frustro-conical top endo'f the weight 'I shape'ha'ving its largest cross-section at the cen-' trelthereof," and which has a 18 within whichis inserted a carrying a metal ball 20 and position by means of glue.

The cylindrical casing 2| is inferiorly open and tapering upwardly to end-. at its top in an upper central opening 22 adapted to be closed by a cork stopper 23, said casing having a lower enlarged portion 2| the lower edge of which rests on the horizontal flange of the sleeve I. Said casing 2| is provided interiorly with four spaced apart vertical depending wings 24 dividing the inner hollow space of th casing intd ffour conduits for the passage or liquid from the bottle, and said wings cylindrical socket l9 which is secured in 9 from the lower central recess 24 have a. right angle cut 25 at their lower projecting corner to form a lock against the edge of the hard-steel disc I? resting on the top faces of the vertical projections ll] of sleeve 1.

The casing 2| is inviolably secured to the bottle 2 by means of a metallic packing 26, preferably made of aluminum, which is bent at its top edge upon the top edge of the lower enlarged portion 2| of the-casing, and the same is bent at its lower edge below the annular shoulder 21 formed on the neck of bottle 2.

In order to prevent that an instrument as a wire may be inserted downwards the peripheral conduits of the casing, said opening is provided with a lower depending rim 2.8.

The operation of this closure is as follows: As the bottle 2 is inverted to discharge the. inner liquid 9 (Fig. 2), the valve 13 will fall and the wings l4 and it thereof will slide within the guide formed by the seat 6 connected to the sleevel, until-the upper cone of the weight I? abuts against the bevelled corners 1 of the wings I of sleeve 1, whereupon the liquid 9 will pass through the interspaces 8 formed between said wings toward. the central openingS of the disc 4 forming the seat 6 for the valve, and from the central opening the liquids passes through the interspaces between the wings l4 and i5 of the valve, to find its way through the hollow of sleeve I about the valve 13 towards the opening l between the raised projections Ill. The liquid 9 then penetrates in the inner hollow space 29 of the casing 2 land from there it passes through the inner conduits of the casing 22! between the depending wings. 1-4 towards the inner space 36 above vthehard-steel disc l2, and then through the top central opening 22 of the casing 2i wherefromit is discharged, once the cork stopper 23 is removed.

It is obvious that by reason of the fact that the lower face of the valve 13 remains, either in its normal position or in its raised position on its seat, at a level below the joint between the horizontal flange 3 ofthe sleeve i and the top edge of the bottle 2, it will not bepossible to introduce through the packin 26 and said instrument for the purpose of retaining the valve aised on its seat and thus permit the refilling of the bottle through the top opening 22v and the sinuous conduits of the closure. Preferably, the sleeve shouldbe madesufiiciently long so that as the bottle. is inverted (Fig. 2), the top face of the valve will not project beyond the level of the jointbetween the horizontal flange of the sleeve 1 and the top edge of the bottle 2, thereby preventing the valve l3 from being engaged with a piercing. instrument inserted through, the packing 26 and said joint for the purpose of retaining the valve raised on its seat and thus permit the refilling of the bottle 2. It would not also be possible to destroy the valve t3 by forcing a piercing instrument through the top opening 22, as the strike. of such. instrument wouldbe absorbed by joint a piercing the unborable hard metallic disc I2 that thus effectively protects the valve 13.

Inasmuch as the valve carrying member of this closure is limited to a, single element which permits a reduction in the height of the closure, this closure Will be rendered more economical to manufacture in relation to the closure which was the subject-matter of my United States Patent No. 2,420,870, granted May 20, 1947.

It is obvious that changes may be made within certain limits in the inner shape as well as in the. number .of inner passageways or conduits formed by the sleeve wings and projections and by the casing-depending wings, without thereby altering the essential character of the invention, which is such asclaimed hereinafter.

What I claim is:

A closure for unrefillable containers, comprisinga valve-carrier formed by a sleeve lodged within the bottle heel; and provided with a top horizontal flange adapted to rest on the top edge of the bottle, the sleeve having a disc at its lower end' with a central opening and a rim raised on the edge of said opening to serve as a seat and a guide for the valve, and the sleeve having spaced apart raised projections projecting upwardly from its top edge to form openings for the passage. of liquid, radially spaced apart vertical wings downwardly projecting from the disc secured to the sleeve and having their lower inner corner bevelled, a. hard metal disc resting on the top projections of the sleeve, a hollow cylindrical valve normally resting on the raised rim bordering the opening of the disc joined to the sleeve and having four lower vertical wings in the shape of a cross-piece of which two wings are longer than the other two and all are lodged through the opening of the disc. joined to the sleev and adapted to run within said opening and within the space bordered by the wings downwardly projecting from the disc, a weight flexibly connected to the two longer opposed wings of the valve, an upward tapering cylindrical casing having a central opening and having a lower edge resting on the sleeve flange, said casing having interiorly thereof spaced vertical depending wings forming passageways for the liquid about the raised projections of the sleeve, and means for inviolably securing the casing on the bottle neck.

. JOSE SOTO DEL LLANO.

References Cited in the file of this patent UNITED STATES PATENTS

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