Valve system with removable fluid interface

Details Valve system with removable fluid interface Valve system with removable fluid interface

Filed on

1991-08-26

Date issued

1993-01-12

Examiner

Hepperle, Stephen M.

Patent Class

Fluid handling

SubClass

Removable valve head and seat unit

Other Related Categories

25112906, F16K 2702, F16K 3102

Type

Patent

Status

active

Patent number

051781824

Description

ABSTRACT:
A valve having a disposable portion, which comes into contact with the fluid being controlled by the valve. The disposable portion has a valving chamber and a flexible membrane, which can seal off a mouth that is located on a protrusion in the chamber. The disposable portion is held by a fixture which uses a control gas or a mechanical actuator to apply pressure to the flexible membrane. The disposable portion may also have a pressure conduction chamber, which may be used to measure the flow rate of liquid through the disposable portion.

REFERENCES:
patent: 4300552 (1981-11-01), Cannon
patent: 4340083 (1982-07-01), Cummins
patent: 4617952 (1986-10-01), Fujiwara et al.
patent: 4787071 (1988-11-01), Kreuter et al.

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