Sealing device

Details Sealing device Sealing device

1976-11-01

1978-09-26

Hart, Ro E.

Bottles and jars

Closures

With pressure-responsive seal

215274, 215276, 200240, B65D 5300

Patent

active

041163524

ABSTRACT:
A pressure-type containment device with an improved lid sealing feature is disclosed. A lid disk seats on a shoulder along the interior wall of a container mouth and is held in place by a fastening ring adapted to fit into the container mouth. A resilient gasket, such as an O-ring, is wedged between the fastening ring and the lid disk along the interior wall of the mouth. The margin of the fastening ring confronting the gasket is tapered to urge the gasket against the interior wall. A pressure increase within the container expanding the lid disk causes compression of the gasket, enhancing the seal.

REFERENCES:
patent: 532499 (1895-01-01), Thatcher
patent: 645430 (1900-03-01), Smelker
patent: 697681 (1902-04-01), Smelker
patent: 711452 (1902-10-01), Meyer
patent: 727470 (1903-05-01), Smelker
patent: 749457 (1904-01-01), Smelker
patent: 776206 (1904-11-01), Smelker
patent: 801734 (1905-10-01), Lorenz
patent: 802001 (1905-10-01), Lorenz
patent: 1835963 (1931-12-01), Nevius
patent: 2194004 (1940-03-01), Bukolt

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