Hydraulic pressure reservoir

Details Hydraulic pressure reservoir Hydraulic pressure reservoir

2011-04-05

2011-04-05

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

C138S026000, C138S046000, C137S565340, C251S075000

Reexamination Certificate

active

07918245

ABSTRACT:
A hydraulic pressure reservoir having at least one pressure chamber formed between two opposed, movable inner boundary members. Each inner boundary members includes a spring cover and a diaphragm spring. An outer boundary member peripherally surrounds the movable inner boundary members and has a U-shaped cross section along at least a part of its periphery to axially support the diaphragm springs in a fixed axial position. The outer boundary member can be formed in several pieces that are held together by interconnections or by a surrounding outer tensioning member.

REFERENCES:
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patent: 4164954 (1979-08-01), Ballard
patent: 4477092 (1984-10-01), Bush
patent: 4967800 (1990-11-01), Heilmayr et al.
patent: 6561522 (2003-05-01), Radelet et al.
patent: 7074044 (2006-07-01), Billing et al.
patent: 2006/0213572 (2006-09-01), Beaulieu
patent: 2007/0028981 (2007-02-01), Staudinger
patent: 2008298286 (2008-12-01), None
patent: WO 2007/000128 (2007-01-01), None

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