Resin-laminated rubber closure for a medical vial

Details Resin-laminated rubber closure for a medical vial Resin-laminated rubber closure for a medical vial

1988-04-19

1990-04-10

Norton, Donald F.

Bottles and jars

Closures

Self-sealing, piercable-type closure

215364, B65D 3900

Patent

active

049152432

ABSTRACT:
A resin-laminated rubber closure for a medical vial is provided herein. This closure comprises an annular leg part to be inserted into the mouth of the vial, which leg part is notched or cut at least at one position and a flange part to be contacted with the front surface of the vial mouth, wherein the outer and inner surfaces of the annular leg part is provided with a chemical-resistant resin film laminated thereon except for the upper end of the leg part so that the rubber surface is exposed at the upper end of said leg portion, and wherein the leg part has at least one protrusion on the outer surface of the laminated portion. The present invention also relates to a molding process for economically producing said closure.

REFERENCES:
patent: 2705211 (1955-03-01), De Wyk
patent: 3760969 (1973-09-01), Shimamoto
patent: 4193402 (1980-03-01), Rumpler
patent: 4301936 (1981-11-01), Percarpio
patent: 4441621 (1984-04-01), Matukura et al.
patent: 4459256 (1984-07-01), Ziegler
patent: 4614276 (1986-09-01), Ihara et al.

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