Accumulator

Details Accumulator Accumulator

2008-01-15

2008-01-15

Hook, James (Department: 3754)

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

C138S026000

Reexamination Certificate

active

07318452

ABSTRACT:
An accumulator in which a pressure sealed chamber and a pressure flow-in chamber are formed by an operation member including a metallic bellows provided within a housing constituted by a gas end cover and a bottomed tubular shell, wherein a cross sectional inner outline of a peripheral edge portion of the gas end cover is an oval shape which is concave to the pressure sealed chamber side, and a dead space is not formed, so that a capacity of a volume adjusting spacer is reduced by eliminating a dead space, a working step is reduced by simplifying a shape of the gas end cover, and a margin of welding penetration depth is increased by thickening of a backing metal portion.

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patent: 2003-074503 (2003-03-01), None

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