Speciality closures for bottle necks

Details Speciality closures for bottle necks Speciality closures for bottle necks

1987-02-25

1989-04-25

Rolla, Joseph J.

Dispensing

Axially rotary and longitudinally movable tubes, sleeves, or...

Axial discharge

222549, B22D 3700

Patent

active

048239941

ABSTRACT:
A closure for a bottle neck having a tubular upper portion internally having an upstanding post having at least one axially extending passage. The base has an upstanding portion having an external screw thread. The cap has a skirt rotatively surrounding the upper portion, and the skirt has at least one internal protuberance in screw threaded engagement with that screw thread. The cap has a closed top in which a hole is formed and which is closed by the upper end of the post formed by the base, the hole being closed by this upper end when the cap is screwed downwardly and opened when the cap is screwed upwardly.

REFERENCES:
patent: 2591231 (1952-04-01), Boadway
patent: 3216630 (1965-11-01), Stall
patent: 3406880 (1968-10-01), Stall
patent: 4474314 (1984-10-01), Roggenburg, Jr.

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