US1510458A - Receptacle closure - Google Patents

Description

' new 1924. 1,510,453

L. R. N. CARVALHO RECEPTACLE dmsuna Filed April 21. 1923 Patented Get. 7, i924.

unites LESLIE R. N. CARVALHO, 0F BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE CLOSURESERVICE COMPANY, l COR'EOB-ATION OF OHIO.

RECEIE'TACLE CLOSURE.

Application filed April 21, 1923.

To all whom it may concern:

. Be it known that I, LESLIE It. N. CARVAL- no, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Receptacle Closures, of which the following is a specification.

This invention relates to a receptacle closure, and is in the nature of an improvement upon the structure shown and described in my pending application Serial Number 511,392 (my file 0-116).

A particular object of the present improvement is to provide means for increasing the efficiency of the seal afforded between the closure and the receptacle to which it is attached.

A more detailed object is to provide means for maintaining a powerful spring pressure of the sealing gasket against the upper end of the receptacle at all times while the closure is held in sealing position.

A further object is to so construct the closure as to facilitate the easy and cheap generation and maintenance of the spring pressure of the closure against the receptacle.

A further object is to provide means for maintaining the closure against accidental displacement from the receptacle during temporary use of the closure after it has been released from sealing position.

A. further object is to provide means for protecting all surface portions of the closure against rust and corrosion.

Other objects and aims of the invention more or less specific than those referred to above will be in part obvious, and in part pointed out in the course of the following description of the elements, combinations, arrangements of parts and application of principles constituting the invention, and the scope of protection contemplated will be indicated inthe appended claims.

In the accompanying drawings which are to be taken as a part of this specification, and in which I have shown only a preferred form of embodiment of the invention:

Figure 1 is aside elevational view of the closure constructed in accordance with this invention, the same being shown partly in vertical section and illustrating the closure as it appears in the process of being applied on to the receptacle.

face Serial No. 683,646.

Figure 2 is a view similar to that of Figure 1 but the closure being here shown as coating which is applied to the entire closure for preventing rust and corrosion.

Referring to the drawings, for describing in detail the structure therein illustrated, the reference character Ii indicates the re ceptacle which, for convenience, may be understood to represent the upper portion of a ketchup or like bottle.

The closure consists of a cover portion and a flange portion H. These may be formed integrally with each other from a single piece of sheet metal drawn to proper shape if desired, but since there are numerous important advantages to be derived from making said parts of two separate pieces of metal joined together by suitable it will be understood that an important feature of this invention resides in adapting so-callcd two-piece closure features to use in association with the other features of this invention.

A two-piece closure is, therefore, illustrated in the present drawings, the piece forming the flange portion being connected together by its ends by a seam 2 extending vertically of the closure, and the cover portion being connected with the flange portion by means of an annular seam 3.

The seam 3 is preferably, though not necessarily, of a character such that it holds the cover and flange parts rigidly and im- JlOVELblY connected together. At the same time it provides an attractively rounded edge surface 4 at the upper edge of the clo sure projecting above the uppermost surof the cover serving at once to frame the cover and to protect against injury any lacquer, paint or other ornamentation carried by the cover. This seam also serves as an effective reinforcing element for retaining the closure against distortion at all times.

ll ithin the closure, and in fact forming a part thereof, resting against the inner surface of the cover, is a disk shaped gasket 5 of cork or other suitable gasket material, the

same being held in position by frictional engagement with the walls of the flange portion of the closure. In use thls gasket 1s intended to rest upon the upper edge surface of the receptacle.

The flange portion H is made substantially smooth and uninterrupted throughout its entire surface, and it may bear any suitable paint or lacquer, or it may be ornamented in any appropriate manner. Its lower annular edge, which normally would extend straight downwardly about the aceptacle 'to a point slightly below the annular shoulder 1 of the receptacle, is bent or flanged inwardly as at 7 to under-lie said shoulder and to thereby hold the closure against displacement.

'P'y inspection of Figure 1 it will be seen .that the cover portion G, which is of springy sheet metal, is normally substantially flat and lies in a plane somewhat below the plane of the rib upper edge 4 of the bead 3.

It will also be noted that the upper annular edge of the wall of the receptacle is shaped to provide a relatively high ridge 24 nearer to the inner surface of said wall than to the outer surface and thatbetween this ridge and said outer surface the upper edge of the receptacle inclines downwardly and rounds into the outer surface.

It follows therefore that by utilizing a simple flat plunger, as 23, for engaging against the uppermost edge surface l of the bead 3 for aaal in )ressure to force the closure downwardly on to the receptacle said ridge 24, by being spaced inwardly of the bead 3 will operate readily to bow or spring upwardly the intermediate portion of the cover into the position approximately as seen in Figure 2 and cause the gasket 5 to fit nicely to the contour of the entire upper edge of the receptacle. lVhen the parts have been moved to this position then the lower edge 7 is bent under the shoulder 1 to prevent retrogressive movement.

By springing up the cover during application of the closure onto the receptacle and by holding it thus sprung a very powerful spring force is generated and maintained urging the gasket 5 to its sealing engagement with the receptacle. I Considerable variation in exact size and relation of closures and receptacles is permissible without loss of efficiency of seal.

At a point spaced slightly above its lower edge the flange H is formed with a score line 8 extending substantially throughout the circumference thereof and adapting the portion of the flange below it to be severed or torn 0E from the portion above whenever it is desired to remove the closure, this feature being the same as has been fully described and claimed in said pending application.

It is contemplated that if desired the flange portion of the closure may be provided with an inset bead at a point spaced just above the score 8 so that said bead will appear in the flange-after the attaching por tion 9 has been removed.

This bead may be adapted to engage within an annular groove 26 provided to receive it in the receptacle, and said head and groove are intended to co-operate for holding the closure against accidental displacement during temporary use of the closure, that is after the attaching portion 9 has been removed. r

In order to render these parts properly c0- operative it is intended that the exterior surface of the closure shall be smooth and uninterrupted upwardly above the groove, said surface being preferably given a slight upward taper, and it is here pointed out, particularly with relation to the use of the closure as a temporary closure, that the presence of the inset bead 25 will operate to hold the score 8, or rather the unprotected edge of the metal left at said score by thetearing of? of the attaching portion 9, lifted out of contact with the'surface of the receptacle when the temporary closure is being moved onto and oil of the receptacle, and hence that said edge w'll not be likely to accurate late scrapings from the side of the recep tacle. 7

Material from within the receptacle which will inevitably find its way onto the outer surface of the receptacle, will not likely be gathered up by the lower edge of the closure where such'material wouldproduce a mussy and undesirable appearance.

The diameter of the flange H. is of course such that the head 25 will snap into the groove 26,, and in this connection it will be appreciated of course that the material comprising said flange is suitably resilient to facilitate this action and to cause the head to exert a resilient frictional pressure against the side walls of the receptacle and against the groove at alltimes. The taper of the receptacle insures easy application of the closure over the upper end and yet insures tight frictional engagementas closure is moved downwardly.

As illustrated in Figure 3, it is contemplated'that the entire inner surface of the closure, and the outer surface also if desired, shall be coated with a suitable coat ing as 28 of material for preventing rust and corrosion. Any suitable paint, oil, or varnish, may be used for this purpose, and this coating 28 is particularly important notwithstandingthe fact that the material from which the closure has been formed was previously coated with a protective, or ornamental, coating 29, because during the manufacture of the closure from flat sheet metal certain portions of the coating 29 were inadvertently removed, as for instance along the score line 8 where the cutting tool employed for forming said score necessarily the out through and removed a part of the coating 29, also at edge portions as at 30, of the metal.

The coating 28, being applied after the closure is completed, finds its way into and over all parts of the closure and effectually protects such parts as are not all protected by the coating 29. It even flows into and fills all openings in the seams 2 and 3 and thus prevents possible corrosion at these points.

The coating 28 is preferably transparent so that it will not obscure any ornamental coloring or the like in the coating 29.

As many changes could be made in this construction without departing from the scope of the invention defined in the following claims, it is intended that all matter contained in the above description, or shown in the accompanying drawings shall be interpreted as illustrative only and notin a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination with a receptacle hav ing an annular open upper end, and a closure comprising a resilient cover part and a flanged part depending from the margin of the cover part, a rib provided at the margin of the cover part projecting upwardly above the plane of the cover part adapted to receive pressure for forcing the closure downwardly on to a receptacle, the cover part being adapted by reason of its resiliency to be sprung upwardly in its intermediate portion by engagement with the re ceptacle whereby to store an energy for resiliently maintaining tight sealingengagement with the receptacle the major pressure contacting surface between the cover part and the receptacle being a suflicient distance inwardly from the flange part to bring into energy storing action the resilienc of the cover part, and means comprisec in the flange portion for gripping the receptacle to hold the closure in said sprung sealing position.

2. The combination with a receptacle having an upper annular open end, the wall of the receptacle at said upper end being shaped to provide an annular ridge nearer to its inner side than to its outer side, and said receptacle having a shoulder exteriorly thereof spaced downwardly from said upper end, of a closure comprising a cover part for overlying the upper end of the receptacle and a marginal flange part depending from the cover part for lapping the outer surface of the receptacle, the cover part being resilient and being adapted to be sprung upwardly in its intermediate portion by engagement with said ridge of the receptacle when the closure is forced downwardly over the receptacle whereby to store an energy for resiliently maintaining tight sealing en gagement with the receptacle, sai l ridge defining a major pressure contacting surface between the cover part and the receptacle which is a suflicient distance inwardly from the flange partto bring into energy storing action the resiliency of the cover part, and means carried by the flange part adapted to engage said shoulder of the receptacle to hold the closure downwardly in said sprung sealing position.

3. The combination with a receptacle having an annular ope-n end of a closure for said open end, said closure comprising a resilient cover part and a flange part depending from the margin of the cover part, the closure being intended to be forced downwardly onto the receptacle and the flange part being adapted to engage the re ceptacle for holding the cover part in sealing position over the open end of the re ceptacle, the cover part being adapted to be flexed by engagement with the receptacle, and the major pressure contacting surface between the cover part and the receptacle being a sufficient distance inwardly from the flange part to bring into energy storing ac tion the resiliency of the cover part in the manner set forth.

In testimony whereof I ai'iix my signature in the presence of two witnesses.

LESLIE R. N. CARVALHO. l/Vitnesses W. G. SKATEH, ALICE OALLAHAN.

Images