Patents
Patents for G01L 19 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges (10,924)
10/1991
10/17/1991DE4010734A1 Electronic blood pressure measuring equipment - with signal processing unit only operative when dynamic pressure changes are absent
10/16/1991CN2086901U Pressure indicator with safe protector and pressure recording
10/15/1991US5056558 Dunnage airbag pressure controller
10/08/1991US5056049 Position Transmitter
10/02/1991DE4036783C1 Overload protector for pressure sensor - provides pneumatic low pass capillary made of metal poly:acryl or polyamide in-front of pressure input of piezo-resistive miniature sensor
10/02/1991DE4009741A1 Gas bottle manometer for gas leak detection - has pressure detector and pressure threshold detector operating warning signal device
10/02/1991CN2085958U Protector for pressure gage
10/02/1991CN2085957U Anti-freezing pressure gage in pipe
10/02/1991CN1055060A Integrated multisensor and static and differential pressure transmitter and plant system using integrated multisensor
10/01/1991US5053692 Temperature dependent power supply for use with a bridge transducer
09/1991
09/25/1991EP0448308A2 System for controlling ambient pressure within an enclosed environment
09/24/1991US5051729 Pressure responsive encoder
09/24/1991US5050634 Very low differential pressure switch
09/24/1991CA1289378C Pressure transducer
09/19/1991DE4008320A1 Pressure sensor with deformation detection resistors
09/18/1991EP0447255A2 Piezoelectric-type pressure sensor
09/17/1991US5048323 Fluid metering
09/16/1991CA2038395A1 System for controlling ambient pressure within an enclosed environment
09/12/1991DE4006906A1 Appts. to insert probe into pipe - is used with pipe contg. material under pressure, and incorporates cylinder and sealable port
09/11/1991EP0445332A1 Device for monitoring potentially explosive installations
09/11/1991EP0445162A1 Magnetic linkage for bourdon tube gauges
09/11/1991EP0311613B1 Pressure transducer with stress isolation for hard mounting
09/10/1991US5046365 Transducer thermal protection system
09/10/1991US5046360 Aerodynamic probe internal constructions
09/04/1991CN2084195U Hydraulic indicator for storage in liquefied petroleum gas
09/04/1991CN2084194U Micro-pressure amplifer for diffusion' silicon force sensitive sensor
09/03/1991WO1991012765A1 Multiprobes with thermal diffusion flow monitor
09/03/1991CA2076667A1 Multiprobes with thermal diffusion flow monitor
08/1991
08/28/1991CN2083749U Electric joint point pressuremeter alarm device
08/28/1991CN2083748U Pressure instruments protecting joint
08/28/1991CN1013711B Piezomagnetic tester for directly indicating absolute stress of concrete
08/27/1991US5043841 High pressure transducer package
08/27/1991US5042307 Amplifying compensation circuit for semiconductor
08/27/1991CA1288173C Pressure and temperature sensor
08/20/1991US5040477 Warning device for compressed air tanks
08/20/1991US5040420 Pressure responsive sending unit
08/14/1991EP0441130A2 Device for controlling rapid air pressure fluctuations in public transport means
08/06/1991US5036884 Mounting means for fluid pressure transmitters
08/06/1991US5036711 Averaging pitot tube
07/1991
07/31/1991EP0362287A4 Modular transmitter
07/25/1991WO1991010819A1 Engine coolant pressure indicator (non-electrical)
07/24/1991EP0438065A2 Threaded valve assembly, especially for a flow control valve
07/24/1991CA2008491A1 Pressure gauge
07/23/1991US5033294 Pressure gauge
07/20/1991CA2033926A1 Valve cap pressure drop indicator
07/17/1991CN2081090U Liquid isolator
07/16/1991US5031462 Snap-fit construction low cost pressure sensing device
07/10/1991CN2080665U Induction shockproof electrical contact manometer
07/09/1991US5029468 Elements necessary for the excitation and the monitoring of wheel modules in a system for monitoring the wheels of a vehicle
07/04/1991DE4013921C1 Air pressure measuring device for aeroplane - has infrared energy source e.g. laser diode with driver feeding converter e.g. solar cell and storage capacitor
07/02/1991US5027740 Valve cap pressure drop indicator
06/1991
06/26/1991CN1052550A Aerodynamic probe internal constructions
06/25/1991US5025661 Combination air data probe
06/18/1991US5024100 Automatic transducer selection system for pressure measurement
06/16/1991WO1991009274A1 Aerodynamic probe internal constructions
06/16/1991CA2069110A1 Aerodynamic probe internal constructions
06/13/1991DE3940709A1 Pressure transducer with separation sensing - has distance piece between relatively displaceable elements
06/12/1991EP0431345A2 Probe for measuring pressure of a fluid flowing in a pipe
06/12/1991CN2078874U Light manometer
06/12/1991CN2078873U Means for suppressing the interference of wind pressure
06/11/1991US5022271 Pressure sensing device for pipes
06/11/1991US5022270 Extended measurement capability transmitter having shared overpressure protection means
05/1991
05/29/1991DE3938782A1 Pressure compensator for sensor in braking system - contains air exchange body with elastic sealing ring that allows air exchange between sensor and atmosphere
05/28/1991US5018388 Pressure sensor for infusion conduits
05/21/1991US5016442 Master cylinder with fluid level and pressure failure detector
05/14/1991US5014786 Pressure checker
05/08/1991CN1051247A Universal connector for manometer
05/07/1991US5012678 Overpressure relief safety plug for pressure gauges
05/07/1991US5012677 Differential pressure transmitter
05/02/1991EP0424483A1 Pressure sensor.
05/02/1991DE3935507A1 Information and operating field for monitoring equipment - displays monitored parameter, e.g. temp. using LEDs or LCD(s) showing selected monitoring or switching point
04/1991
04/30/1991US5012436 Sensor arrangement with amplifier offset cancellation
04/25/1991DE3941369A1 Transfer device for pressure measuring-processing system - has switch and signalling arrangement for immediate detection of membrane damage
04/24/1991EP0424120A2 Borehole pressure and temperature measurement system
04/24/1991EP0423462A1 Apparatus to monitor the airtightness of a vehicle tyre
04/16/1991US5007365 Air-leak indicator for vehicle tire
04/11/1991DE3932761A1 Pressure measurer contg. membrane and displacement sensor - arranged to enable mountable in different positions, e.g. vertical or horizontal, without affecting results
04/10/1991EP0421394A2 Differential pressure measuring device
04/10/1991EP0420949A1 Skid-controlled brake installation, in particular one for motor vehicles.
04/09/1991US5006833 Sewer line restriction alarm placed in clean out plug
04/04/1991WO1991004475A1 Pressure transmitter with flame isolating plug
04/03/1991EP0420569A2 Glass tube/stainless steel header interface for pressure sensor
04/03/1991CN1050441A Pressure transmitter with flame isolating plug
04/02/1991CA1282260C Composite fastening device
03/1991
03/27/1991CN1012217B Semiconductive force transferring apparatus
03/26/1991US5001929 Electronic altimeter
03/26/1991CA1282012C Apparatus for use with fluid flow transfer device
03/21/1991CA2059644A1 Pressure transmitter with flame isolating plug
03/20/1991EP0417156A1 A pressure gauge.
03/19/1991US5000048 Circuit arrangement for temperature compensation of capacitive pressure and differential pressure sensors
03/12/1991US4998438 Digital air pressure gauge and inflation device
03/12/1991CA1281209C Drain manifold for air data sensor
03/07/1991WO1991002944A1 Electronic altimeter
03/06/1991CN2072682U Pressure gauge parity checker joint device
03/06/1991CN1049718A Strain test element and pressure transducer using it
02/1991
02/27/1991EP0414145A2 Fundamental gauge casing for high-purity gases
02/26/1991US4995265 Degradation and contamination compensated tuning fork quartz monometer, and method to compensate for tuning quartz degradation and contamination
02/26/1991US4995263 Tuning fork quartz manometer
02/19/1991US4995014 Low frequency hydrophone and depth sensor assembly
02/19/1991US4993754 Liquid level coplanar transmitter adapter