Valve assembly

Details Valve assembly Valve assembly

2008-04-09

2011-12-20

Rivell, John (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S512150

Reexamination Certificate

active

08079385

ABSTRACT:
The present invention is directed to a pressure-responsive valve assembly which functions in the nature of a check valve to control fluid flow across the assembly. The assembly includes a valve body which defines first and second internal flow passages, and includes a valve seat through which at least one flow port extends for joining the first and second passages in fluid communication with each other. A flexible, resiliently deformable valve member is positioned in operative association with the valve seat, and can be deflected, in response to a sufficient pressure differential, to move out of sealing engagement with the valve seat, to thereby permit fluid flow through the valve assembly. In the preferred embodiment, the valve seat of the valve assembly defines a compound sealing surface, including first and second sealing surfaces, which cooperate with the deflectable valve member to provide enhanced resistance to reverse fluid flow, with one preferred form of the present valve assembly further including a retention projection which cooperates with the valve member to further enhance resistance to reverse fluid flow.

REFERENCES:
patent: 2497906 (1950-02-01), Peters et al.
patent: 2605957 (1952-08-01), Houston
patent: 2646063 (1953-07-01), Hayes
patent: 3221952 (1965-12-01), De See
patent: 3321114 (1967-05-01), Croyle
patent: 3804113 (1974-04-01), Garcea
patent: 4570826 (1986-02-01), Fatorri
patent: 4646945 (1987-03-01), Steiner et al.
patent: 4874369 (1989-10-01), Kulle et al.
patent: 5033655 (1991-07-01), Brown
patent: 5115950 (1992-05-01), Rohr
patent: 5213236 (1993-05-01), Brown et al.
patent: 5242423 (1993-09-01), Goodsir et al.
patent: 5271571 (1993-12-01), Maynard, Jr.
patent: 5409144 (1995-04-01), Brown
patent: 5531363 (1996-07-01), Gross et al.
patent: 5788215 (1998-08-01), Ryan
patent: 6062435 (2000-05-01), Hess, III
patent: 6095381 (2000-08-01), Schwanenberg
patent: 6158458 (2000-12-01), Ryan
patent: 6273296 (2001-08-01), Brown
patent: 6605076 (2003-08-01), Jepson et al.
patent: 6616012 (2003-09-01), Dark
patent: 6749092 (2004-06-01), Olechowski et al.
patent: 6951295 (2005-10-01), Gaus et al.
patent: 7077296 (2006-07-01), Brown et al.
patent: 2008/0053568 (2008-03-01), Johnson
patent: B2 45 38230 (1970-12-01), None
U.S. Appl. No. 12/011,312, filed Jan. 25, 2008.

Affiliated with

Also associated with

Rating

Valve assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4269473