# US 4,396,134 A · Pouring adapter-closure assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 4,396,134 A
- Document ID: US4396134A
- Status: Granted
- Kind: A
- Application number: 06/250,649
- Filed: 1981-04-03
- Granted: 1983-08-02
- Earliest claimed: 1981-04-03
- Assignees: West Corporation
- Inventors: Phillip J. Owens
- Web page: https://patentgrep.com/patent/US4396134A

## CPC

- B65D 47/122: {Threaded caps}
- B65D 47/40: with drip catchers or drip-preventing means
- 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

## Abstract

A pouring adaptor to be secured to the discharge end of a container or the like comprising a generally cylindrical skirt portion having a bead at its lower terminal edge for detachably securing it to the container finish and a radially inwardly directed top portion which snugly seats on the axial end face of the container. The top portion has a frusto-conical outer face which is outwardly divergent from its inner peripheral edge and a reversely tapered flexible flange which is downwardly divergent from the juncture of the frusto-conical outerface and flange.

## Claims

### Claim 1

A pouring adaptor-closure assembly comprising;
an adaptor adapted to be secured to the discharge end of a container or the like comprising,
a generally cylindrical skirt portion having a lower terminal edge which detachably locks under a protruding rib on the container finish after the assembly is secured to the container,
a radially inwardly directed top portion which snugly seats on the axial end face of the container,
said top portion having a frusto-conical outer face which is outwardly divergent from its inner peripheral edge and a reverseably tapered flexible flange which is downwardly divergent from the juncture of the frusto-conical outer face and flange to provide a non-drip edge as the contents are poured from the container and,
a closure cap having a top and a generally cylindrical skirt portion with internal threads adapted to cooperate with threads on the container finish,
means defining a rib spaced downwardly form said top defining a sidewall groove on the interior of the cap within which the flexible flange of the adaptor releasably seats and compresses radially inwardly to provide a primary seal for the container contents and to secure said adaptor to said cap prior to use,
said closure cap including a circumferentially extending sealing rib projecting from the inside of the top of the cap which engages against the frusto-conical face of the adaptor to provide a secondary seal for the container contents.

### Claim 2 (depends on 1)

A pouring adaptor as claimed in claim 1 wherein the frusto-conical outer face is disposed at an angle of about 15.degree. to a plane transverse to the axis of the adaptor.

### Claim 3 (depends on 1)

A pouring adaptor as claimed in claim 1 wherein the flexible flange is disposed at an angle of 30.degree. to a plane transverse to the axis of the adaptor.