Diaphragm valve

Details Diaphragm valve Diaphragm valve

2008-05-27

2008-05-27

Krishnamurthy, Ramesh (Department: 3753)

Valves and valve actuation

Reciprocating valve

Diaphragm

C251S335200

Reexamination Certificate

active

11208539

ABSTRACT:
A diaphragm valve for opening or closing itself through making direct contact of or through breaking the direct contract of a metal diaphragm with a valve seat disposed inside a body provided with an inlet port and an outlet port. The diaphragm valve includes an elevating member which serves to make or break the direct contact of the metal diaphragm with the valve seat and which is fusion-bonded to the metal diaphragm.

REFERENCES:
patent: 4717906 (1988-01-01), Smith
patent: 5413311 (1995-05-01), Arstein et al.
patent: 5743513 (1998-04-01), Yoshikawa et al.
patent: 5851004 (1998-12-01), Wu et al.
patent: 6736370 (2004-05-01), Crockett et al.
patent: 6871803 (2005-03-01), Ohmi et al.
patent: 6-27551 (1994-04-01), None
patent: 2002-340203 (2002-11-01), None

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