Cap attachment structure for accumulator

Details Cap attachment structure for accumulator Cap attachment structure for accumulator

1992-02-19

1994-05-17

Hornsby, Harvey C.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 96R, 138 30, F16L 5504

Patent

active

053119100

ABSTRACT:
A piston-type accumulator has a cylindrical outer case, a piston slidably fitted in the cylindrical outer case, and a cap mounted in an open end of the outer case. The piston-type accumulator includes a cap attachment structure in which said cap has two larger- and smaller-diameter steps on an outer circumferential surface. The cylindrical outer case is deformed by staking on said larger- and smaller-diameter steps. The piston has an annular recess defined in an outer circumferential surface thereof axially between two seals thereon. The annular recess communicates with the atmosphere through a collapsible tube.

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patent: 5031664 (1991-07-01), Alaze

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