Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent
1995-05-15
1995-12-26
Fox, John C.
Valves and valve actuation
With means to increase head and seat contact pressure
Seat pressed to valve
251171, 25131508, F16K 506
Patent
active
054780470
ABSTRACT:
A rotary valve has a valve housing with a wall defining a flow passageway, a closure member journalled within the valve housing and mounted for movement between a first position for permitting flow of fluid within the flow passageway and a second position for ceasing flow of fluid within the flow passageway, and a flexible seating ring disposed at least partially within the flow passageway in a position for sealing engagement with the closure member in second position. The flexible seating ring has a flow-through section sized to fit within the flow passageway with a clearance fit, and a flanged seating section extending outwardly from the flow-through section and positioned for sealing contact with the closure member to seal the valve. A seating ring support member is positioned to support the seating ring in a manner to permit the seating ring to move axially and radially within the flow passageway to provide improved tolerance to dimensional variation in manufacture.
REFERENCES:
patent: 3394915 (1968-07-01), Gachot
patent: 3447781 (1969-06-01), Fawkes
patent: 3584641 (1971-06-01), Milleville
patent: 3848849 (1974-11-01), Alexander
patent: 3895776 (1975-07-01), Laurens
patent: 4286614 (1981-09-01), Kacal et al.
patent: 4519412 (1985-05-01), Grazioli
patent: 5069240 (1991-12-01), Kurkjian, Jr.
Drawing C-S03143G, by M. E. M. of Henry Pratt Co. (dated Jul. 14, 1992).
Drawing C-S06400B, by V. A. of Henry Pratt Co. (dated Feb. 2, 1993).
Best William J.
Hoff Joseph W.
Skurka James A.
Smick Stephen J.
Fox John C.
Watts Investment Company
LandOfFree
Flexible seating structure for valves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible seating structure for valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible seating structure for valves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1363652