| Patents for G01L 7 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements (6,106) |
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| 03/17/1992 | US5095755 Isolator for pressure transmitter |
| 02/26/1992 | CN2097401U Portable measurer for ventilation pressure |
| 02/19/1992 | EP0471355A2 Ceramic hollow bodies and process of manufacturing the same |
| 02/19/1992 | CN2096751U Pressure display instrument of signal hydraulic prop three-used valve |
| 02/12/1992 | CN2096057U Winding type u-tube liquid pressure gauge |
| 02/04/1992 | CA1295194C Audible alarm device for divers |
| 01/29/1992 | EP0468398A1 Pressure sensor and process for its manufacture |
| 01/29/1992 | EP0468331A1 Overpressure detector and pump incorporating the same |
| 01/25/1992 | CA2047435A1 Pressure sensor and method for manufacturing it |
| 01/24/1992 | CA2047562A1 Detector for over-pressure inside a pipe and a pump fitted with such a detector |
| 01/22/1992 | EP0467873A2 Mechanical flexure for motion amplification and transducer with same |
| 01/15/1992 | CN2093391U Liquid pressure gauge of anti-overloading and anti-overflow device |
| 01/08/1992 | EP0465192A1 Electronic sphygmomanometer |
| 12/25/1991 | CN2091453U Spring tube pressure gage |
| 12/12/1991 | WO1991019156A2 Device for measuring gas pressure inside cartridges |
| 12/04/1991 | CN2090053U Adjustable manometric meter |
| 12/04/1991 | CN1056747A Transducer for measuring pressure |
| 12/03/1991 | US5069253 Flexible hose assembly |
| 11/13/1991 | CN2088687U Steel string type hydraulic forcemeter |
| 11/12/1991 | US5065129 Pressure sensor and method for calibrating pressure sensors |
| 11/06/1991 | EP0454901A1 Force sensor |
| 11/06/1991 | EP0158664B1 Apparatus for correcting barometric pressure for wind velocity and direction |
| 11/06/1991 | CN2088246U Pressure gauge for hydraulic prop in the coal mine |
| 10/30/1991 | CN1014567B Pressure photoelectric protector for explosion-proof of single capacitor |
| 10/29/1991 | US5060520 Hermetic pressure sensor |
| 10/23/1991 | CN2087336U Range-limited pressure gauge |
| 10/15/1991 | US5056528 Pressure gauge: gelatinous filled bourdon tube |
| 10/10/1991 | CA2014276A1 Automated vapour pressure analyzer |
| 10/09/1991 | EP0450215A1 Audible alarm device for divers |
| 10/08/1991 | US5055826 Pressure sensor system |
| 10/01/1991 | US5052586 Gas cylinder gauge |
| 10/01/1991 | CA1289770C High pressure transducer |
| 09/11/1991 | EP0445162A1 Magnetic linkage for bourdon tube gauges |
| 09/11/1991 | EP0311613B1 Pressure transducer with stress isolation for hard mounting |
| 09/03/1991 | CA1288294C Pressure differential indicator with non-mechanical thermal lockout |
| 08/28/1991 | CN1054133A 液柱式压力敏感装置 Liquid column pressure sensitive device |
| 08/27/1991 | US5043841 High pressure transducer package |
| 07/30/1991 | US5035145 Differential manometer pressure gage |
| 07/25/1991 | DE3943475C2 Capacitive pressure transducer with thermal bonded flexible diaphragm |
| 07/24/1991 | CA2008491A1 Pressure gauge |
| 07/23/1991 | CA1286522C Nosepiece stopper for probe end, probing process in a melter oven by means of a probe having said stopper, and device of use in said process |
| 07/17/1991 | CN2081088U Coordinate temp and volume type relative air gauge without mercury |
| 07/17/1991 | CN2081087U Atmospheric pressure intensity gage with water column length 1 m |
| 07/17/1991 | CN1013224B Isolator apparatus |
| 07/16/1991 | US5031462 Snap-fit construction low cost pressure sensing device |
| 07/16/1991 | US5031460 Deformation |
| 07/03/1991 | EP0435611A2 Versatile, overpressure proof, absolute pressure sensor |
| 06/25/1991 | US5025667 Hermetic pressure sensor |
| 06/25/1991 | CA1285155C Pressure transmitter |
| 06/19/1991 | CN1052283A Pressure sensor system |
| 06/12/1991 | EP0431217A2 Delta P/delta t pressure sensor system |
| 06/11/1991 | US5022271 Pressure sensing device for pipes |
| 06/11/1991 | CA1284731C Pressure transducer |
| 06/04/1991 | CA2004533A1 Magnetic linkage for bourdon tube gauges |
| 05/29/1991 | CN2077991U Pressure detecting device of monomer hydraulic prop |
| 05/29/1991 | CN1051778A Alarm for water failure of circulating pump |
| 05/15/1991 | CN2077123U Pipe thick liquid-delivery pressure-surveying device |
| 05/15/1991 | CN2077122U Liquid display pressure gauge for fire fighting |
| 05/14/1991 | US5014786 Pressure checker |
| 04/30/1991 | US5011537 Pressure gauge cleaning method |
| 04/23/1991 | US5010248 Sampling hydrophone |
| 04/09/1991 | US5005421 Joining by copper spacer |
| 04/09/1991 | CA1282612C Rapid response pressure gauge |
| 04/04/1991 | WO1991004475A1 Pressure transmitter with flame isolating plug |
| 04/03/1991 | CN1050441A Pressure transmitter with flame isolating plug |
| 04/02/1991 | CA1282260C Composite fastening device |
| 03/28/1991 | DE3931049A1 Pressure sensor esp. for monitoring motor vehicle tyre - has electric switch formed from contact rod and diaphragm welded to housing inside pressure chamber |
| 03/27/1991 | CN1012216B Diapharm pressure sensor for flowing medium with high-temp. and high-pressure |
| 03/26/1991 | CA1282012C Apparatus for use with fluid flow transfer device |
| 03/21/1991 | CA2059644A1 Pressure transmitter with flame isolating plug |
| 03/19/1991 | US5000049 In a catheter |
| 01/30/1991 | EP0410014A1 Pressure sensor and method for the calibration of pressure sensors |
| 01/30/1991 | CN1048923A Detecting method and apparatus for single hydraulic pillar pressure |
| 01/23/1991 | CA2021766A1 Pressure sensor and method for calibrating pressure sensors |
| 01/16/1991 | EP0407722A1 Pressure sensor, especially for pneumatic utility vehicle brake installations |
| 01/15/1991 | US4984468 Pressure sensor and method for manufacturing it |
| 01/09/1991 | CN1048473A Digital transmission system transmitter and receiver for use in transmission system, and record carrier obtained by means of transmitter in form of recording device |
| 01/02/1991 | CN2068684U Asymmetric s-type impact tube |
| 01/02/1991 | CN1011074B Capacitance pressure sensor |
| 01/02/1991 | CN1011073B Flangeless transmitter coupling to flange adapter union |
| 12/19/1990 | EP0403257A2 High pressure transducer |
| 12/19/1990 | EP0403254A2 Hermetic pressure sensor |
| 12/19/1990 | EP0402973A1 Digital transmission system, transmitter and receiver for use in the transmission system, and record carrier obtained by means of the transmitter in the form of a recording device |
| 12/13/1990 | DE3918818A1 Pressure sensor with film resistance strain gauge - has ceramic plate with corrosion and abrasion resistant insulation cover plate |
| 12/12/1990 | CN2067406U Fluid pressure alarm device |
| 12/04/1990 | US4975679 Pressure sensor system |
| 12/02/1990 | CA2475414A1 Decoder, receiver and method for decoding an encoded digital audio signal |
| 11/20/1990 | US4970899 Pressure gauge |
| 11/20/1990 | US4970898 Pressure transmitter with flame isolating plug |
| 11/14/1990 | EP0397392A2 Snap-fit construction low cost pressure sensing device |
| 11/14/1990 | EP0396755A1 Coned disk spring |
| 11/08/1990 | CA2014257A1 Snap-fit construction low cost pressure sensing device |
| 11/06/1990 | CA1275823C Stress reducing stop for unstretched pressure sensing diaphragm |
| 10/31/1990 | EP0394632A1 Pressure sensor and method of fabricating the same |
| 10/24/1990 | CN2064505U Pressure indicating devices for fire hydrant |
| 10/17/1990 | EP0053976B1 A device to sense and determine the pressure of a fluid |
| 10/03/1990 | CN2063230U Safety measurer for atmospheric pressure |
| 09/27/1990 | DE3916689C1 Pressure pick=up with two capsule parts - having outer edges forming mounting zone for diaphragm and sealed by two-component adhesive |
| 09/26/1990 | EP0388831A1 Gas pressure indicating device and method for producing the same |
| 09/26/1990 | EP0311612A4 Capacitance pressure sensor |