Rubber plug for drug vessel

Details Rubber plug for drug vessel Rubber plug for drug vessel

1997-02-14

1998-12-08

Shoap, Allan N.

Bottles and jars

Closures

Self-sealing, piercable-type closure

215355, B65D 5116

Patent

active

058457976

ABSTRACT:
A rubber plug for a drug vessel has at least one convexity formed on a surface of the rubber plug so that the rubber plug is prevented from sticking together, joining together under compression or joining together under suction with another rubber plug of a similar type. The convexity may preferably be a grain pattern formed on at least a part of the surface of the rubber plug by transferring same from a mold. A rubber plug for a drug vessel may also be composed of a leg portion and a head portion formed integrally with the leg portion and may have at least one convexity on at least one of the leg portion and the head portion.

REFERENCES:
patent: 2649090 (1953-08-01), Parsons et al.
patent: 3849072 (1974-11-01), Ayres
patent: 4226334 (1980-10-01), Weiler et al.
patent: 4488656 (1984-12-01), Fukuoka et al.
patent: 4872572 (1989-10-01), Schrooten
patent: 4915243 (1990-04-01), Tatsumi et al.
patent: 5171214 (1992-12-01), Kolber et al.
patent: 5171304 (1992-12-01), Ris et al.
patent: 5297561 (1994-03-01), Hulon

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