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Class Information
Number: 137/505.15
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Bias variable during operation > Ancillary reactor surface responds to inlet pressure
Description: Devices in which the bias is varied by an ancillary reactor surface which responds to fluid pressure at the inlet.










Patents under this class:

Patent Number Title Of Patent Date Issued
8490647 Fluid pressure control device Jul. 23, 2013
8336575 Fluid pressure control device Dec. 25, 2012
8240327 Pressure loaded service regulator with pressure balanced trim Aug. 14, 2012
7896101 Pneumatically operated power tool having mechanism for changing compressed air pressure Mar. 1, 2011
7178335 Pressure regulator Feb. 20, 2007
6971402 Liquid control valve Dec. 6, 2005
6923197 Pressure regulator with tamper-proof safety feature Aug. 2, 2005
6786231 Fluid flow regulator with restrictor pin Sep. 7, 2004
6773605 Method and system for controlling a separator unit for multiphase separation of fluids Aug. 10, 2004
6758238 Combined pressure regulator and shut-off valve Jul. 6, 2004
6752169 Pressure regulator and shut-off valve Jun. 22, 2004
6227238 Valve providing pressure differential proportional to downstream pressure May. 8, 2001
6019121 Pressure reducing valve Feb. 1, 2000
6006780 Two-stage, warm-gas high pressure regulator Dec. 28, 1999
5662137 Optimal pneumatic pressure regulator with electronic compensation Sep. 2, 1997
5597012 Valve with a threshold with retractable push rod Jan. 28, 1997
5230359 Supply pressure compensated fluid pressure regulator and method Jul. 27, 1993
4806217 Back-flushable filter and pressure-regulator particularly useful therewith Feb. 21, 1989
4323086 Pressure responsive flow control apparatus for breathing system Apr. 6, 1982
4182365 Control valve for use with variable displacement piston pump Jan. 8, 1980
4106510 Servo valve Aug. 15, 1978
4086994 Fluid pressure modulating apparatus for a fluidically actuated frictional engaging apparatus in a vehicle transmission May. 2, 1978
4000795 Apparatus for controlling the pressure of a fluid fed to a clutch Jan. 4, 1977











 
 
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