Patents for G01L 13 - Devices or apparatus for measuring differences of two or more fluid pressure values (2,634) |
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01/21/1997 | US5596148 Pressure difference measurement transducer with electric lead-through in bore parallel to housing longitudinal axis |
01/21/1997 | US5596147 Coplanar pressure sensor mounting for remote sensor |
01/15/1997 | EP0753728A2 Semiconductor differential pressure measuring device |
12/31/1996 | US5589643 Across the wall pressure differential indicator |
12/27/1996 | EP0749721A1 In vivo rezero apparatus for a pressure transducer |
12/20/1996 | CA2176429A1 In vivo rezero apparatus for a pressure transducer |
12/19/1996 | WO1996041141A1 Magnetic relative position transducer |
12/10/1996 | US5583296 Layered diaphragm pressure sensor with connecting channel |
12/10/1996 | US5583294 Differential pressure transmitter having an integral flame arresting body and overrange diaphragm |
12/04/1996 | EP0745834A2 Semiconductor pressure sensor |
12/04/1996 | CN1033469C Multi-function differential pressure sensor |
11/28/1996 | WO1996037764A1 Pressure sealed housing apparatus and methods |
11/26/1996 | US5578760 Seal diaphragm structure for pressure measuring device |
11/06/1996 | CN1135039A Semiconductor composition sensor |
10/30/1996 | EP0577720B1 Pressure sensor with high modulus support |
10/30/1996 | CN2239026Y Multifunction detecting instrument for door and window |
10/29/1996 | US5569856 Differential pressure transducer wherein a bridge connects two pressure diaphragms |
09/18/1996 | CN2235617Y Steam thermal insulation five valve group |
09/18/1996 | CN1131462A Pressure transmitter isolation diaphragm |
09/10/1996 | US5554809 Process detection apparatus |
09/06/1996 | WO1996027123A1 Pressure sensors and pressure transmitters |
09/06/1996 | CA2212384A1 Pressure sensors and pressure transmitters |
09/04/1996 | EP0672239A4 Pedestal mount capacitive pressure sensor. |
08/21/1996 | EP0727650A2 Surface-micromachined symmetrical differential pressure sensor |
08/14/1996 | DE19510447A1 Differential pressure sensor with dual pressure chambers |
08/01/1996 | DE19602442A1 Compound sensor using series connected piezo-resistive semiconductor measuring elements |
07/31/1996 | EP0681691B1 Pressure sensor |
07/24/1996 | EP0723143A1 Arrangement for measuring pressure or differential pressure |
07/24/1996 | CN1127355A Seal diaphragm structure for pressure measuring device |
07/24/1996 | CN1127354A Capacitive pressure sensors or capacitive differential pressure sensors |
07/24/1996 | CA2167885A1 Differential pressure indicators |
07/17/1996 | CN2231414Y Transmitter for measuring liquid pressure, difference pressure and liquid level |
07/10/1996 | EP0720733A1 Pressure transmitter isolation diaphragm |
07/10/1996 | CN2230923Y Gas pressure difference meter |
07/02/1996 | US5531120 Compact differential pressure transmitter having first and second damper chambers |
07/02/1996 | CA2054668C Micromachined differential pressure transducers and method of producing the same |
06/27/1996 | WO1996019371A1 Method and device for eliminating sudden pressure changes in vehicles |
06/27/1996 | DE19548108A1 Vorrichtung und Verfahren, um plötzliche Druckänderungen in Fahrzeugen, insbesondere Bodenfahrzeugen, zu vermeiden In order to avoid device and method sudden pressure changes in vehicles, in particular floor vehicles, |
06/26/1996 | EP0717836A1 Media-isolated differential pressure sensor |
06/25/1996 | US5528940 Process condition detecting apparatus and semiconductor sensor condition detecting circuit |
06/18/1996 | US5526692 Sensor |
06/11/1996 | US5524492 For providing an output indicative of a pressure of a process fluid |
05/30/1996 | DE4442326A1 Verfahren und Vorrichtung zur Ermittlung einer Druckgröße Method and apparatus for determining a pressure variable |
05/14/1996 | US5515732 Capacitive pressure sensor and reference with stress isolating pedestal |
04/11/1996 | WO1996006338A3 Differential pressure transmitter |
03/27/1996 | CN1119469A Pressure difference measurement converter |
02/29/1996 | WO1996006338A2 Differential pressure transmitter |
02/28/1996 | EP0698780A1 Differential capacitance detector |
02/27/1996 | US5494072 Value device assembly as a connection unit for differential pressure transducers |
02/21/1996 | EP0697103A1 Valve battery useful as connecting module for differential pressure measurement transducers |
02/14/1996 | CN1116767A Pressure differential switch and/or pressure differential indicator in which servo piston is controlled by offsetting spring |
01/31/1996 | EP0560875B1 Pressure transmitter with stress isolation depression |
01/18/1996 | WO1996001414A1 Media-isolated differential pressure sensor |
01/10/1996 | EP0593676A4 Method and apparatus for measurement of forces and pressures using tensioned bellows |
01/10/1996 | EP0439494B1 Differential pressure sensor with membrane having a free edge construction |
01/03/1996 | EP0689668A1 Pressure difference measurement converter |
12/26/1995 | US5477738 Multi-function differential pressure sensor with thin stationary base |
12/09/1995 | CA2143787A1 Differential pressure indicator |
12/05/1995 | US5471884 Gain-adjusting circuitry for combining two sensors to form a media isolated differential pressure sensor |
11/15/1995 | EP0682239A2 Differential pressure detecting apparatus |
11/15/1995 | EP0681691A1 Pressure sensor. |
10/17/1995 | US5457999 Method and apparatus for measurement of forces and pressures using tensioned bellows |
10/11/1995 | EP0676785A2 Differential pressure switch |
10/07/1995 | CA2146378A1 Differential pressure switch with an adjusting piston drive n by a restoring spring for an oil-separating air filter |
09/27/1995 | EP0674164A1 Capacitive pressure sensor or differential pressure sensor |
09/27/1995 | EP0312532B1 Differential pressure sensors for sensing pressure and method of manufacture |
09/21/1995 | DE19510688A1 Sealing diaphragm structure used in pressure measuring device |
09/20/1995 | EP0672239A1 Pedestal mount capacitive pressure sensor |
09/14/1995 | WO1995024625A1 Valve battery useful as connecting module for differential pressure measurement transducers |
09/14/1995 | DE4407609A1 Ventilbatterie als Anschlußbaugruppe für Differenzdruckmeßumformer Valve battery as a terminal assembly for Differential Pressure |
08/08/1995 | US5438875 Removing sacrificial material through temporary channels as a method of making an overpressure-protected differential pressure sensor |
07/26/1995 | CN1105756A Pressure sensor capable of automatically compensating static pressure |
07/12/1995 | CN2203450Y Device for measuring pressure microchange under high static pressure |
06/14/1995 | CN2200816Y Air miniature differential pressure gauge |
06/07/1995 | CN1028798C Modular pressure instrument |
05/30/1995 | US5419182 Pressure difference detector, a method for judging an abnormality of the detector, and a fuel vapor emission preventing employing the detector |
05/17/1995 | EP0653615A2 Valve block assembly for measuring pressures and differential pressures in liquid or gas transporting pipes |
05/09/1995 | US5412992 Differential pressure sensor capable of removing influence of static pressure and a method of assembling the same |
04/26/1995 | EP0650041A2 Hall effect sensor pressure transducer |
04/19/1995 | EP0649010A2 Method for measuring pressure differences and device for converting displacements |
04/19/1995 | EP0649009A2 Differential pressure transducer |
04/06/1995 | DE4338558C1 Device for measuring differential pressure |
03/30/1995 | WO1995008759A1 Pressure transmitter isolation diaphragm |
03/30/1995 | DE4332470A1 Manometer for measuring the difference between a first and a second pressure |
03/30/1995 | CA2169824A1 Pressure transmitter isolation diaphragm |
03/23/1995 | DE4331720A1 Piston differential pressure meter for monitoring filter installations |
03/15/1995 | EP0642658A1 Pressure transducer |
03/15/1995 | CN1100198A Semiconductor type differential pressure measurement apparatus and method for manufacturing the same |
02/22/1995 | EP0639761A1 Capacitive differential pressure transducer |
02/21/1995 | US5391111 Method and apparatus for eliminating sudden changes of pressure inside vehicles, in particular ground vehicles |
02/07/1995 | US5386729 Temperature compensated microbend fiber optic differential pressure transducer |
02/07/1995 | CA2006162C Differential capacitive pressure sensor with over-pressure protection |
02/01/1995 | EP0636243A1 Modular transmitter with flame arresting header. |
11/02/1994 | EP0622287A1 Device for pressure limitation in high speed railway vehicles |
10/25/1994 | US5357808 Overpressure-protected, differential pressure sensor |
10/25/1994 | US5357807 Micromachined differential pressure transducers |
09/29/1994 | WO1994021992A1 Pressure difference measurement converter |
09/20/1994 | US5349491 Pre-stressed pressure transducer and method of forming same |
09/06/1994 | US5344523 Diaphragm over cavity in single crystal silicon wafer |
08/16/1994 | USRE34694 Automatic transducer selection system for pressure measurement |