Flexible membrane container closure

Details Flexible membrane container closure Flexible membrane container closure

1981-10-26

1983-03-15

Hall, George T.

Receptacles

Closures

220262, 150 3, B65D 728, B65D 640, B65D 3900

Patent

active

043764916

ABSTRACT:
A container closure comprising a cylindrically shaped, resilient, distortable membrane having a first terminal end fully affixed to the periphery of a first closure body providing a discharge aperture of predetermined size and a second terminal end fully affixed to a second coacting closure body coaxially disposed about the outside periphery of the first closure body and adapted for relative bi-directional rotation with respect to the first closure body. Relative counterrotational movement of the membrane terminal ends in one direction causes closure and sealing of the annular throat inherently created and disposed within the membrane while relative counterrotational movement in a second direction causes the previously closed annular throat to open.

REFERENCES:
patent: 1431918 (1922-10-01), Arthur
patent: 2405682 (1946-08-01), Bogoslowsky
patent: 2695608 (1954-11-01), Gillon
patent: 2718225 (1955-09-01), Wallin
patent: 2785795 (1957-03-01), Ryno et al.

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