Extra support land for valve disc

Details Extra support land for valve disc Extra support land for valve disc

2005-05-03

2005-05-03

Graham, Matthew C. (Department: 3683)

Brakes

Internal-resistance motion retarder

Valve structure or location

C188S322140

Reexamination Certificate

active

06886670

ABSTRACT:
A valve for controlling fluid flow through a passage defined by a valve body or a piston includes a valve disc which abuts the valve body or the piston. The valve body or the piston defines a first supporting member for the valve disc, a second supporting member for the valve disc located radially inward from the first supporting member and a third supporting member for the valve disc located between the first and second supporting members. This valve disc abuts the first and second supporting members and a clearance is defined between the valve disc and the third supporting member.

REFERENCES:
patent: 3550616 (1970-12-01), Graham
patent: 3572377 (1971-03-01), Graham et al.
patent: 4782925 (1988-11-01), Grundei
patent: 4905799 (1990-03-01), Yamaoka et al.
patent: 5042624 (1991-08-01), Furuya et al.
patent: 5115892 (1992-05-01), Yamaoka et al.
patent: 5219414 (1993-06-01), Yamaoka
patent: 5325942 (1994-07-01), Groves et al.
patent: 5424398 (1995-06-01), Middeldorp et al.
patent: 5785160 (1998-07-01), Grundei
patent: 5813500 (1998-09-01), Deferme

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