Receptacles – Container attachment or adjunct – Pressure relief means
Patent
1984-01-25
1985-04-30
Shoap, Allan N.
Receptacles
Container attachment or adjunct
Pressure relief means
137 68R, 222397, B65D 5116, B65D 8314, F16K 1714
Patent
active
045138745
ABSTRACT:
A pressure relief device for a metal container having a generally cylindrical side wall and being of the type adapted to contain fluids under pressure. The device includes a concave closure element circumferentially joined to one end of the container side wall. The closure element is deep drawn of tempered steel, with a generally convex tab member integrally formed in a central area thereof. The tab member is partially circumscribed by a weakened line of reduced material thickness, and the closure element has a structural integrity which reacts to an overpressurization of the fluid in the container by undergoing a partial eversion which initiates a fracture along the weakened line accompanied by an outward deflection of the tab member, thereby permitting the overpressurized fluid contents to escape through the fracture.
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Gauthier Maurice E.
Sexton Can Company, Inc.
Shoap Allan N.
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