# US 4,392,055 A · Bottle finish and closure combination with venting slots

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- Number: US 4,392,055 A
- Document ID: US4392055A
- Status: Granted
- Kind: A
- Application number: 06/295,887
- Filed: 1981-08-24
- Granted: 1983-07-05
- Earliest claimed: 1981-08-24
- Assignees: Owens-Illinois, Inc.
- Inventors: Ralph H. Whitney
- Web page: https://patentgrep.com/patent/US4392055A

## CPC

- B65D 1/0246: {Closure retaining means, e.g. beads, screw-threads}
- B65D 41/0414: {formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck}
- B65D 41/3461: {the tamper element being retracted by heat or by heat and pressure}
- B65D 51/1688: {Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads}
- B29K 2067/00: Use of polyesters {or derivatives thereof}, as moulding material
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

A combination of a threaded closure and a threaded finish of a cooperating container, with axial venting slots formed through the threaded portions of the closure and finish. The venting slots on the closure and finish are arranged to be axially aligned when the seal between the closure and finish is first broken.

## Claims

### Claim 1

In combination, a unitary molded thermoplastic closure comprising a disc shaped panel section, an annular skirt depending from the periphery thereof, helical threads formed on the inside annular surface of said skirt, and circumferentially spaced, axially extending slots formed through the threads of said skirt; and a cooperating container comprising an annular finish terminating in an annular rim, helical threads formed on the outside annular surface of said finish and cooperating with said threads on said skirt, means for effecting sealing engagement between said closure and said container finish, and a plurality of circumferentially spaced axially extending slots formed in the outside annular threaded surface of said finish, at least one of said closure slots being alignable with one of said finish slots by opening rotation of said closure sufficient to disengage said sealing means and permit venting of said container.

### Claim 2 (depends on 1)

The combination closure and container defined in claim 1 wherein said sealing means comprises an integral annular sealing plug depending from the inside surface of said panel and constructed and arranged to achieve a sealing interference fit within the inside annular surface of said finish.

### Claim 3 (depends on 1)

The combination closure and container defined in claim 1 wherein the circumferential spacing of said closure slots corresponds to the circumferential spacing of said slots in said finish.

### Claim 4 (depends on 1)

The combination closure and container defined in claim 1 wherein the axial slots in said finish have a depth greater than the depth of said threads.

### Claim 5 (depends on 1)

The combination closure and container defined in claim 1 wherein the depth of said axial closure slots is equal to the depth of the threads formed in said skirt.

### Claim 6 (depends on 1)

The combination closure and container defined in claim 1 wherein said closure slots are circumferentially wider than the slots formed in said finish.

### Claim 7 (depends on 1)

The combination closure and container defined in claim 1 wherein said closure and finish slots are circumferentially spaced such that a first slot in said closure and a first slot in said finish are radially aligned during rotational removal of said closure from said finish when the seal formed by said sealing means against said finish is first broken, and additional ones of said slots in said closure and said finish are respectively sequentially aligned during further rotation.

### Claim 8 (depends on 7)

The combination closure and container defined in claim 7 wherein said closure and finish slots are so aligned that a second slot in said closure and a second slot in said finish become radially aligned during rotation of said closure while said first slots are still aligned, whereby continuous venting through pairs of successively aligned slots is provided.