Receptacles – Closures – Floating closure
Patent
1977-09-26
1979-02-06
Ward, Jr., Robert S.
Receptacles
Closures
Floating closure
277152, 277228, B65D 87207
Patent
active
041380320
ABSTRACT:
In a vertical cylindrical liquid storage tank having a circular floating roof, an improved sealing means including an elastomeric composite strip impermeable to vapor connected at its inner edge by an essentially vapor tight joint to the roof edge and extending as an annulus outwardly to the tank inner side wall, the elastomeric composite strip comprising a plurality of flexible resilient elongated stiffeners laterally positioned and embedded in elastomeric material, and the elongated stiffeners extending from the strip edge joined to the roof and terminating short of the strip edge at the tank wall.
An elastomeric composite strip, impermeable to petroleum vapor, having a plurality of flexible resilient elongated stiffeners laterally positioned and embedded in elastomeric material, with the elongated stiffeners extending from one strip edge and terminating about at the other strip edge.
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patent: 3795339 (1974-03-01), Barbier
patent: 4004708 (1977-01-01), Boyd
Chicago Bridge & Iron Company
Ward, Jr. Robert S.
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