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Class Information
Number: 137/565.14
Name: Fluid handling > Systems > With pump > Pumped fluid control > Fluid pressure responsive > And pilot valve
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
8439069 Air release valve May. 14, 2013
8408233 Flow control system and method for controlling two positive displacement pumps Apr. 2, 2013
8308440 Vacuum processing apparatus, method of controlling vacuum processing apparatus, device manufacturing method, and storage medium Nov. 13, 2012
7926501 Subsea pressure systems for fluid recovery Apr. 19, 2011
6705339 Surge check unit for a liquid distribution system Mar. 16, 2004
6517325 Air compressor and method of operating the same Feb. 11, 2003
6443175 Vacuum pressure generator circuit with non-volitile memory function Sep. 3, 2002
5228473 Internal safety valve system Jul. 20, 1993
4366834 Back-flow prevention valve Jan. 4, 1983
4135550 Pinch valve control circuit Jan. 23, 1979
4062379 Safety valve control system for production well Dec. 13, 1977











 
 
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