Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kim Ngoc Vu0
Date of Patent
October 30, 2018
0Patent Application Number
151829780
Date Filed
June 15, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A valve diaphragm processed by cold working a small concentric region of one surface has a permanent axisymmetric deformation. The deformed diaphragm can be used in a manner which causes continual elastic compression loading of the diaphragm material. The loading of the deformed diaphragm provides a valve restoring spring force and simultaneously defeats diaphragm tendency toward exhibiting hysteresis. The restoring force provided by the diaphragm can also lessen actuator hysteresis.
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