Closure device for membrane-sealed container

Details Closure device for membrane-sealed container Closure device for membrane-sealed container

1994-05-27

1996-04-09

Shoap, Allan N.

Receptacles

Closures

With closure opening arrangements for means

206222, 215228, 220212, 220277, 220281, 222 80, 222 81, 222 83, 222 85, B65D 1744

Patent

active

055053262

ABSTRACT:
A closure device for a container having an opening sealed with a membrane comprises: a cap adapted to engage the opening of the container for closing same and comprising a first cylindrical wall connected to one side of a circular base; and a membrane-penetrating element comprising a second cylindrical wall connected to the reverse side of the circular base and, within the second cylindrical wall, means for penetrating a membrane when the element is pressed into contact with the opening of a container sealed with the membrane, the means comprising a plurality of arciform cutters that are connected to the base and are coaxial with and in close proximity to the inner surface of the second cylindrical wall, the plurality of arciform cutters together comprising a total of at least 300 degrees.

REFERENCES:
patent: 3156369 (1964-11-01), Bowes et al.
patent: 3865267 (1975-02-01), Morris
patent: 4211334 (1980-08-01), Witten et al.
patent: 4340147 (1982-07-01), McIntosh
patent: 4634013 (1987-01-01), Bar-Kokhba
patent: 4709822 (1987-12-01), Vataru
patent: 4770305 (1988-09-01), Su
patent: 5090582 (1992-02-01), Art et al.

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