Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Reexamination Certificate
2006-09-26
2009-12-29
Hook, James F (Department: 3754)
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
C138S026000
Reexamination Certificate
active
07637285
ABSTRACT:
A hydraulic accumulator, in particular a bladder accumulator, includes two at least partially adjacent plastic casings (12, 14). The first plastic casing (12) has a collar part (16) at least at one end thereof. To produce a leakproof accumulator arrangement economical to produce, a gap opening (24) between the casings (12, 14) extends up to a point at which the casings (12, 14) are positioned together in a coaxial manner, and a disk valve (50) is provided as a valve for controlling the supply and discharge of the medium in the opening (10).
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Hook James F
Hydac Technology GmbH
Roylance Abrams Berdo & Goodman L.L.P.
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