Pressure resistant fuel tank closure

Details Pressure resistant fuel tank closure Pressure resistant fuel tank closure

1992-12-23

1994-05-31

Shoap, Allan N.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220 892, 220208, 411 9, B65D 4502

Patent

active

053161670

ABSTRACT:
A container for a fuel tank having an access opening is provided with a closure which fits within a channel in the container to cover the access opening. An elongated bolt has a collapsible cylinder located between the bolt head and the top of the closure to hold the closure to the container. The cylinder is located about the shank of the bolt, and is collapsible above a selected threshold pressure. Under normal bolting conditions, the cylinder is rigid to provide sufficient force to maintain the closure against the tank. Should an abnormal pressure develop within the tank, the closure moves axially along the shank of the elongated bolt, crushing the cylinder and providing additional tank volume to absorb the increased fluid pressure. This reduces the likelihood of catastrophic failure of the closure and also reduces pressure stress on the other tank structures.

REFERENCES:
patent: 2584100 (1952-01-01), Uecker
patent: 4059199 (1977-11-01), Quaney
patent: 4172573 (1979-10-01), Moore et al.
patent: 4589564 (1986-05-01), Olster et al.
patent: 5072851 (1991-12-01), Wilkes
patent: 5092483 (1992-03-01), McKelvy
patent: 5191991 (1993-03-01), Jackson

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