Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
H. Stephen Jones0
Thomas C. Taylor0
Walter P. Kistler0
Date of Patent
July 21, 2009
0Patent Application Number
114127860
Date Filed
April 28, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A thin diaphragm valve includes a base plate attached to a valve attach plate. A diaphragm is positioned between the plates to move between open and closed positions. A spring can be provided between the diaphragm and a sealing flange of a pipe. Because no sliding friction occurs between sealing surfaces, wear is reduced and leakage is also reduced. A pierceable membrane can also be added to provide additional security.
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