Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1990-08-01
1992-01-28
Michalsky, Gerald A.
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
137883, 137885, 251368, F16K 31126
Patent
active
050837427
ABSTRACT:
A fluid flow control valve for use with chemical fluids where avoidance of contaminants is important, is provided. The valve has a flow control chamber divided into an analytical section and a driver section by a metallic foil membrane operating member, clamped between the peripheral rim of the chamber and the upper wall. The foil membrane is moveable in response to driver fluid pressure between open and closed positions. The upper portion of the rim which engages the membrane is of relatively small surface area, and is made of a softer material than that from which the membrane and the upper wall are constructed, thereby providing a very effective means of sealing the membrane periphery to the upper wall when tightly clamped. The membrane is of domed shape, and is formed in situ by deformation of a planar metal foil sealingly clamped in position within the chamber, by application of fluid pressure thereto through a port to the chamber.
REFERENCES:
patent: 3057376 (1962-10-01), Agutter et al.
patent: 3123096 (1964-03-01), Notaro et al.
patent: 3130954 (1964-04-01), McFarland
patent: 3312238 (1967-04-01), Voit
patent: 4037622 (1977-07-01), Osheroff et al.
patent: 4070004 (1978-01-01), Friswell
patent: 4119120 (1978-10-01), Mehaffy et al.
patent: 4353243 (1982-10-01), Martin
patent: 4703913 (1987-11-01), Hunkapiller
patent: 4869282 (1989-09-01), Sittler et al.
Bray Donald S. N.
Leveson Richard C.
Thomson Paul C. P.
Wylie David A.
Michalsky Gerald A.
Photovac Incorporated
LandOfFree
Fluid control valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid control valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1855880