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Class Information
Number: 137/557
Name: Fluid handling > With indicator, register, recorder, alarm or inspection means > Fluid pressure responsive indicator, recorder or alarm
Description: Apparatus provided with a visual indicator, audible alarm or recorder which is responsive to the pressure of the fluid in the flow path.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8701703 Method and apparatus for controlling gas flow via a gas shut-off valve assembly Apr. 22, 2014
8690732 Electro-hydraulic control system diagnostics Apr. 8, 2014
8671971 Systems and methods for providing a monitoring and deactivation apparatus for a beverage distribution system Mar. 18, 2014
8653979 Gas flow and pressure error alarm Feb. 18, 2014
8628514 Multi-dose medical fluid injection system having patient-specific tubing set with use indicator Jan. 14, 2014
8590561 Pressure sensor, differential pressure type flow meter, and flow rate controller Nov. 26, 2013
8590562 Fluid flow detection device Nov. 26, 2013
8561630 Dual gas source changeover valve and control cabinet and gas supply system Oct. 22, 2013
8550109 Gas meter device and gas supply system using the device Oct. 8, 2013
8550114 Time remaining display assembly Oct. 8, 2013
8470137 Recycler assembly Jun. 25, 2013
8468804 Exhaust line for an internal-combustion engine having a shut-off valve with a diagnostic capability Jun. 25, 2013
8448665 Fuel overflow alarm system May. 28, 2013
8424556 Valve with a delta P-function and flow limiting function Apr. 23, 2013
8418713 Mobile tire inflator Apr. 16, 2013
8413678 Mechatronic device Apr. 9, 2013
8402997 Fluid flow control cock fitted with a lever having several stable positions Mar. 26, 2013
8393349 Tire air valve with pressure indicator Mar. 12, 2013
8387656 Pressure monitoring device for a paint spray gun Mar. 5, 2013
8387657 Methods and apparatus to determine a position of a valve Mar. 5, 2013
8381583 Method for determining a functioning of a gas bleed valve Feb. 26, 2013
8373539 Gas cutoff apparatus Feb. 12, 2013
8360099 Failure protection apparatus for a pressure control assembly Jan. 29, 2013
8356627 Three-valves manifold for differential pressure type flow meter Jan. 22, 2013
8333217 Fault-tolerant bleed valve assembly Dec. 18, 2012
8313083 Signaling of the active safety position of electropneumatic position regulators Nov. 20, 2012
8312892 Device and method for determining a failure mode of a pneumatic control valve assembly Nov. 20, 2012
8307845 Flow rate controller Nov. 13, 2012
8272393 Switchover valve Sep. 25, 2012
8221288 Electro-hydraulic control system diagnostics Jul. 17, 2012
8201575 Air pressure regulator with flow sensor Jun. 19, 2012
8186379 Electromagnetic valve and method for manufacturing the same May. 29, 2012
8176936 Fluid cutoff device and gas meter with the fluid cutoff device May. 15, 2012
8152134 Valve with regulating function Apr. 10, 2012
8151813 Quad-redundant hydraulic trip system Apr. 10, 2012
8141572 High pressure isolation valve system Mar. 27, 2012
8137077 Portable air compressor assembly and associated method Mar. 20, 2012
8122905 Method and arrangement for diagnosis of a final control element Feb. 28, 2012
8056580 Fluid flow control cock fitted with a lever having several stable positions Nov. 15, 2011
8032256 Liquid level control systems Oct. 4, 2011
8015995 System and method for flow monitoring and control Sep. 13, 2011
8002315 Device for measuring fluid properties in caustic environments Aug. 23, 2011
7981279 Oil filter with bypass valve Jul. 19, 2011
7938139 Smart reset relief valve May. 10, 2011
7882853 Rotary feed-through with leakage sensor Feb. 8, 2011
7866340 Universal pressure reducer for self-contained breathing apparatus Jan. 11, 2011
7843354 Activation sensing Nov. 30, 2010
7836966 Flow sensor and actuator Nov. 23, 2010
7828012 Port integrated within valve stem Nov. 9, 2010
7823397 System and method for detecting clogged state of pipe of heat pump type multi-air conditioner Nov. 2, 2010

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