Patents for G01L 13 - Devices or apparatus for measuring differences of two or more fluid pressure values (2,634) |
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01/04/1983 | US4366716 Pressure transducer |
12/28/1982 | US4365582 Differential pressure signal device |
12/21/1982 | US4364276 Differential pressure measuring transducer assembly |
12/15/1982 | EP0066583A1 Method for measuring the partial pressure of a gas and probe for implementing such method |
12/08/1982 | EP0066520A1 Device for measuring a pressure difference in a pulse column and its use in measuring the interface level and the density of the liquid medium |
12/01/1982 | EP0065845A1 High accuracy differential pressure capacitive transducer and method for making same |
11/25/1982 | WO1982004125A1 High accuracy differential pressure capacitive transducer and methods for making same |
11/09/1982 | US4357859 Pressure sensor |
10/19/1982 | US4354389 Vapor pressure sensor and flow measuring devices |
10/06/1982 | EP0061940A1 Differential pressure measuring system |
10/05/1982 | CA1132810A1 Liquid filled pressure transducer |
09/08/1982 | EP0059488A1 Capacitive pressure sensor |
09/07/1982 | US4347745 Pressure measuring apparatus |
09/07/1982 | US4347744 Diaphragm type differential pressure gauge with overpressure relief protection |
08/24/1982 | US4345476 Differential pressure transducer with high compliance, constant stress cantilever beam |
08/04/1982 | EP0057125A1 Transducer for a digital pressure measuring device |
08/03/1982 | US4342231 Differential pressure transmitter |
06/24/1982 | WO1982002093A1 Method for measuring the partial pressure of a gas and probe for implementing such method |
06/22/1982 | US4336567 Differential pressure transducer |
06/08/1982 | US4333350 Differential pressure sensing device |
06/01/1982 | US4332166 Temperature compensation apparatus for a liquid filled conduit |
05/18/1982 | US4329877 Adjustable overload mechanism for a differential pressure transmitter |
05/18/1982 | US4329775 Pressure measuring apparatus using vibratable wire |
04/20/1982 | CA1122028A1 Pressure sensitive indicating device |
04/15/1982 | WO1982001250A1 Capacitive pressure transducer with isolated sensing diaphragm |
04/06/1982 | US4322979 Optical device for measuring slight differences of pressure by means of a change in light intensity |
04/06/1982 | US4322978 Optical device for measuring slight pressure differences by means of light intensity changes |
04/01/1982 | WO1982001041A1 Electropneumatic converter |
03/23/1982 | US4321578 Pressure transducer |
01/19/1982 | US4311053 Vibrating beam pressure sensor |
01/12/1982 | US4309908 Liquid filled pressure transducer |
12/22/1981 | US4306460 Differential pressure transducer |
11/24/1981 | US4301685 Digital pressure-measuring device |
11/17/1981 | CA1112470A1 Capacitive pressure sensor |
10/13/1981 | CA1110464A1 Differential pressure to electric current transducer employing a strain sensitive resistive pattern on a substrate having a high modulus of elasticity |
09/08/1981 | CA1108433A1 Digital pressure-measuring device |
09/01/1981 | US4287501 Pressure sensor |
09/01/1981 | CA1107982A1 Pressure responsive apparatus |
08/25/1981 | US4285244 Non-symmetrical overload protection device for differential pressure transmitter |
07/14/1981 | US4277981 Lead screw actuated fluid gauge |
06/23/1981 | CA1103478A1 Method and apparatus for overrange protection of the transducer in a differential pressure transmitter |
05/12/1981 | US4266430 Precision pressure-responsive fluid gauge |
04/28/1981 | US4264889 Pressure transducer |
04/21/1981 | US4262540 Pressure measuring device |
03/25/1981 | EP0025566A2 Optical device for measuring small pressure differences by means of light intensity changes |
03/25/1981 | EP0025565A2 Optical device for measuring pressure differences by means of light intensity changes |
03/25/1981 | EP0025564A2 Optical device for measuring small pressure differences by means of light intensity changes |
03/24/1981 | US4257274 For automobiles; silicon, borosilicate glass |
03/24/1981 | CA1097990A1 Magnetic pressure indicator with thermal lockout |
03/10/1981 | US4254731 Filter restriction indicator |
02/24/1981 | CA1096195A1 Digital differential pressure measurement apparatus |
01/20/1981 | US4245497 Monitoring and remote-indicator apparatus for vacuum-generating internal combustion engines |
01/13/1981 | US4244226 Distance measuring apparatus and a differential pressure transmitter utilizing the same |
09/09/1980 | US4221134 Differential pressure transducer with strain gauge |
09/09/1980 | US4221133 Vibratory-wire pressure sensor |
09/02/1980 | CA1085018A1 Linear displacement transducer |
08/26/1980 | US4218925 Differential pressure transmitter with pressure sensor protection |
08/19/1980 | CA1083893A1 Differential fluid pressure indicating device |
07/22/1980 | CA1081989A1 Capacitive pressure sensor |
07/15/1980 | US4212209 Differential pressure to electric current transducer employing a strain sensitive resistive pattern on a substrate having a high modulus of elasticity |
06/26/1980 | WO1980001318A1 Pressure sensitive indicating device |
06/10/1980 | CA1079087A1 Pressure-balanced telemetric pressure sensing system and method therefore |
05/20/1980 | US4203327 Piezoresistive silicon strain sensors and pressure transducers incorporating them |
05/14/1980 | EP0010569A1 Magnetic pressure indicator with thermal lockout |
05/13/1980 | CA1077294A1 Pressure transmitter with simplified pressure sensing head |
05/06/1980 | CA1076832A1 Differential pressure transmitter with pressure sensor protection |
04/22/1980 | US4198867 Temperature compensating means for pressure measuring apparatus |
04/22/1980 | CA1075979A1 Magnetic pressure indicator with sampling ports |
04/08/1980 | US4196632 Dual capacitance type bonded pressure transducer |
02/19/1980 | US4189724 Electric restriction indicator with a contactless switch device for indicating a restriction in filter elements |
02/06/1980 | EP0007596A1 Capacitive pressure sensor |
01/22/1980 | US4184376 Pressure sensitive indicating device |
01/09/1980 | EP0006817A1 Numerically operating pressure sensor |
12/11/1979 | US4177680 Dual pressure sensor |
11/27/1979 | CA1067199A1 Transducer device for found waves with automatic compensation |
11/06/1979 | US4173149 Differential pressure sensing devices |
10/30/1979 | US4172971 Magnetic pressure indicator with thermal lockout |
10/30/1979 | US4172387 Pressure responsive apparatus |
10/09/1979 | CA1063824A1 Differential pressure gauge |
10/02/1979 | US4169389 Pressure measuring device |
09/11/1979 | CA1062093A1 Differential pressure indicating device |
08/28/1979 | US4165651 Pressure measuring apparatus using vibratable wire |
08/07/1979 | US4163395 Pressure transmitter with simplified pressure sensing head |
07/24/1979 | US4161887 Media independent differential pressure transducer |
07/10/1979 | CA1057971A1 Differential pressure cell with diaphragm tension and overpressure protection |
07/10/1979 | CA1057969A1 Differential pressure sensor |
06/19/1979 | US4158311 Pressure sensing device |
02/13/1979 | US4139466 Differential fluid pressure indicating device |
01/23/1979 | US4135408 Differential pressure measuring transducer assembly |
01/23/1979 | US4135407 Method and apparatus for overrange protection of the transducer in a differential pressure transmitter |
01/16/1979 | US4134293 Pressure differential indicating apparatus for a hydraulic measuring bridge and its associated measuring piston |
11/21/1978 | US4126801 Moveable seat for crystal in an oscillating crystal transducer systems |
10/24/1978 | CA1040883A1 Open-loop differential-pressure transmitter |
10/17/1978 | US4120206 Differential pressure sensor capsule with low acceleration sensitivity |
10/03/1978 | CA1039780A1 Differential pressure switch |
08/29/1978 | CA1037283A1 Differential pressure indicators |
08/08/1978 | US4104925 Pressure or pressure difference measuring apparatus |
08/08/1978 | US4104924 Pressure difference measuring apparatus |
07/18/1978 | US4101747 Differential pressure operated switch |
05/30/1978 | US4091682 Digital differential pressure measurement apparatus |