Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Patent
1996-02-22
1998-05-12
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
429172, 429174, H01M 212
Patent
active
057502838
ABSTRACT:
An electrochemical cell has a wheel shaped, molded plastic seal member of a unitary construction which includes a central cylindrical hub from which depend in outward radial sequence, an annular pressure vent, a boss, a downward projecting skirt, an annular flexure means for providing radial movement and an outer rim terminating at its periphery in a cylindrical wall. The pressure vent includes a thin membrane ring depending from the hub which joins the hub to an annular diaphragm. A hinge ring joins the periphery of the diaphragm to the boss. The seal member is designed so that the membrane ring fails primarily in shear at excessive cell pressure which makes the vent more reliable and easier to fabricate.
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DePalma Christopher L.
Fontaine Lucian P.
Moses Peter Rick
Pope Peter
Tubby Francis Bruce
Douglas Paul I.
Duracell Inc.
Josephs Barry D.
Skapars Anthony
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