Patents for G01L 13 - Devices or apparatus for measuring differences of two or more fluid pressure values (2,634) |
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03/28/1989 | US4817022 Method and apparatus for automatic offset compensation in parameter-sensing transducer systems |
01/17/1989 | US4798089 Isolator apparatus |
12/27/1988 | US4793187 Circuit arrangement for the compensation of temperature-dependent and temperature-independent drift and for the compensation of the sensitivity of a capacitive sensor |
12/21/1988 | CN88202728U Corrosion resistant differential pressure sensor |
12/07/1988 | CN88200206U High-pressure air water column differential pressure gage |
12/06/1988 | US4788867 Differential pressure detector |
11/23/1988 | EP0292333A2 Pressure transducer assembly |
11/23/1988 | CN88203578U Throttle differential measuring device with power accumulator |
11/17/1988 | EP0291393A1 Structure of a capacitive cell for measuring differential pressures |
11/08/1988 | US4783256 Adapter assembly for filter arrangement |
11/08/1988 | US4782703 Temperature compensated pressure signal generator |
10/19/1988 | CN87216349U Solid-state piezoresistance type differential pressure transducer |
10/18/1988 | US4778159 Adjustable range spring for differential pressure responsive devices |
10/11/1988 | US4776218 Amorphous metal elastic diaphragm divider between fluids |
10/04/1988 | US4776019 Diaphragm for use in condenser microphone type detector |
09/27/1988 | US4773269 Media isolated differential pressure sensors |
09/22/1988 | WO1988007185A1 Isolator apparatus |
09/21/1988 | CN88101231A Isolator apparatus |
08/30/1988 | US4766769 Differential-pressure measuring apparatus with improved arrangement for coupling pressures to a semiconductor sensor |
08/02/1988 | CA1239806A1 Capacitive sensing cell made of brittle material |
07/20/1988 | CN86108892A Split-seconds type silicon varistor pulsating flow rhysimeter probe |
07/06/1988 | EP0273832A2 Differential pressure detector |
07/06/1988 | CN87106322A Flangeless transmitter coupling to flange adapter union |
06/28/1988 | US4754365 Differential pressure transducer |
05/24/1988 | US4745876 Differential pressure responsive indicating device |
05/24/1988 | US4745810 Flangeless transmitter coupling to a flange adapter union |
05/03/1988 | US4741214 Capacitive transducer with static compensation |
04/14/1988 | DE3633810A1 Pressure-difference measuring device |
04/05/1988 | US4735098 Dual diaphragm differential pressure transducer |
03/30/1988 | EP0177491A4 Pressure compensated differential pressure sensor and method. |
03/29/1988 | US4733563 Fluid pressure transmitter for use in potentially explosive atmospheres |
03/24/1988 | WO1988002107A1 Flangeless transmitter coupling to a flange adapter union |
03/08/1988 | US4729339 For use in a fluid system |
02/24/1988 | CN87104418A Differential-pressure sensor |
02/16/1988 | CA1232773A1 Adhesive joint for diaphragm to sensor connection in pressure transducers |
02/11/1988 | WO1988001049A1 Media isolated differential pressure sensors |
02/10/1988 | EP0255768A2 Adapter assembly for filter arrangement |
02/03/1988 | EP0254843A2 Method and apparatus for automatic offset compensation in parameter-sensing transducer systems |
02/02/1988 | US4722228 Remote seal-type pressure signal generator |
01/27/1988 | EP0094429B1 Apparatus for conveying fluid pressures to a differential pressure transducer |
01/14/1988 | WO1988000335A1 Differential pressure sensor |
01/12/1988 | US4718279 Dual bourdon tube type sensing pressure transducer |
12/23/1987 | EP0250028A2 Circuit device for compensation of temperature dependent and temperature independent drifts of a capacitive sensor |
12/22/1987 | US4713969 Differential pressure transmission apparatus |
12/22/1987 | CA1230496A1 Differential pressure sensor |
12/08/1987 | US4711127 Method and apparatus for measuring the pressure of a fluid |
11/19/1987 | EP0245472A1 Dual diaphragm differential pressure transducer |
11/03/1987 | CA1228924A1 Method of digital process variable transmitter calibration and a process variable transmitter system utilizing the same |
09/22/1987 | US4695817 Environmentally protected pressure transducers employing two electrically interconnected transducer arrays |
09/15/1987 | US4693121 Differential-pressure measuring apparatus with improved overpressure protection |
09/02/1987 | EP0110920B1 Device for the control of a fluid pressure of a turbomachine engine |
08/11/1987 | CA1225255A1 Pressure transducer |
08/05/1987 | EP0231074A2 Lubrication pressure sensor apparatus |
07/21/1987 | US4680971 Dual diaphragm differential pressure transducer |
07/14/1987 | US4679466 Line pressure control device for hydraulic control system of automatic transmission |
07/14/1987 | CA1224056A1 Transducer |
06/30/1987 | CA1223463A1 Cylindrical force transducer beam |
06/30/1987 | CA1223453A1 Pressure sensor with a substantially flat overpressure stop for the measuring diaphragm |
06/10/1987 | EP0225216A1 Differential manometers for small gas pressures |
06/02/1987 | US4670733 Differential pressure transducer |
05/21/1987 | WO1987003088A1 Dual diaphragm differential pressure transducer |
05/20/1987 | EP0110992B1 A liquid to liquid differential capacitive pressure transducer and method for manufacturing same |
05/19/1987 | US4665753 Inductive differential pressure sensor |
05/13/1987 | EP0221661A2 Pressure indicating device |
04/08/1987 | EP0217509A2 Self-zeroing transducer assemblies |
04/07/1987 | US4655074 Self-zeroing pressure transmitter with automatic pressure manifold |
03/31/1987 | US4653330 Pressure transmitter housing |
03/24/1987 | US4651670 Pressure indicating device |
03/24/1987 | US4651570 Differential pressure monitor |
03/03/1987 | US4646624 Differential pressure sensor |
02/25/1987 | EP0211519A2 Capacitive differential pressure transducer |
02/10/1987 | CA1217647A Fluid pressure transmitter assembly |
02/03/1987 | US4640135 Sensor |
02/03/1987 | CA1217523A1 Automatic pressure sensitive regulation assembly |
01/31/1987 | CN85101132A Pressure sensor with a substantially flat overpresswre stop for the measuring diaphragm |
01/28/1987 | EP0210015A2 Pressure transmitter and housing therefor |
01/21/1987 | EP0209495A2 A fluid pressure transmitter for use in potentially explosive atmospheres |
01/20/1987 | US4637257 Pressure difference measuring device with a semiconductor pressure sensor |
01/10/1987 | CN85101369A Semiconductor differentical pressure signal generator |
01/06/1987 | CA1216360A1 Pressure compensated differential pressure sensor and method |
01/02/1987 | DE3522383A1 Compact differential pressure sensor |
12/16/1986 | US4628740 Pressure sensor |
12/09/1986 | US4627292 AC transducers, methods and systems |
12/09/1986 | US4627286 Pressure or pressure difference measuring instrument |
12/03/1986 | EP0203364A2 Fluid-bearing of a piston of a pressure-measuring device |
11/26/1986 | CN86200908U Pore pressure sensor |
10/22/1986 | EP0198018A1 Capacitive sensing cell made of brittle material |
08/12/1986 | US4604900 Adhesive joint for diaphragm to sensor connection in pressure transducers |
07/29/1986 | US4603371 Capacitive sensing cell made of brittle material |
06/17/1986 | US4595342 Device for the control of a fluid pressure of a turbomachine engine and support for a pressure pick-off |
06/10/1986 | CA1205647A1 Pressure transducer |
06/04/1986 | EP0183640A1 Device for measuring pressure differences using a semiconductor pressure sensor |
05/21/1986 | EP0181757A2 Diaphragm pressure transducers |
05/06/1986 | US4586384 Pressure or pressure difference measuring instrument |
04/24/1986 | WO1986002447A1 Capacitive sensing cell made of brittle material |
04/23/1986 | EP0178368A2 Process variable transmitter and method for correcting its output signal |
04/16/1986 | EP0177491A1 Pressure compensated differential pressure sensor and method. |
04/16/1986 | CN85202425U Pressure-relief indicator for liquefied gas |
02/25/1986 | US4572000 Pressure sensor with a substantially flat overpressure stop for the measuring diaphragm |
01/21/1986 | US4565096 Pressure transducer |