Valve device

Details Valve device Valve device

1988-02-22

1989-04-11

Rosenthal, Arnold

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

251 635, 251331, F16K 712

Patent

active

048196916

ABSTRACT:
A valve device for controlling a fluid flow. The device comprises a valve body arranged in a valve housing and placeable against a valve seat and moveable away from the seat. A center portion of the valve body forms an integral part of a membrance manufactured from a resilient material. Said part of the membrane freely, without friction, embraces the shaft of a membrane manoeuvring member having a head which is gripped by a cavity in the membrane.

REFERENCES:
patent: 3246872 (1966-04-01), Seltsam
patent: 3426798 (1969-02-01), Chernak
patent: 3802462 (1974-04-01), Trosch
patent: 4014514 (1977-03-01), Priese et al.
patent: 4316482 (1982-02-01), Pearce et al.
patent: 4319737 (1982-03-01), Waterfield
patent: 4421295 (1983-12-01), Parkison

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