Vacuumizing closure for vacuum pack containers

Details Vacuumizing closure for vacuum pack containers Vacuumizing closure for vacuum pack containers

1977-05-20

1978-04-11

Hall, George T.

Receptacles

Closures

Externally adjustable plug or gasket

220238, 220256, 220307, B65D 5300

Patent

active

040834689

ABSTRACT:
A reclosure device for vacuum pack containers and the like, comprised of a diaphragm that seals with the opened end of the container and actuating means therefor to position it axially outward from an initially inward extension into the container, thereby drawing a partial vacuum upon the contents within the said container.

REFERENCES:
patent: 3087641 (1963-04-01), Millard
patent: 3756480 (1973-09-01), Swett et al.

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