| 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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| 09/20/1990 | DE3907202A1 Pressure sensor |
| 09/19/1990 | EP0323963A4 Flangeless transmitter coupling to a flange adapter union |
| 09/12/1990 | CN1045242A Self smelting electric arc welding method for matrix of metallic capillary tubes |
| 09/04/1990 | US4953404 Mechanism for an aneroid barometer |
| 08/28/1990 | US4951509 Use in a blood line |
| 08/22/1990 | EP0383165A2 Pressure sender |
| 08/21/1990 | US4950499 Impacting, coating, atomization, sputtering, vaporizing, sealing |
| 08/21/1990 | US4950244 Pressure sensor assembly for disposable pump cassette |
| 08/21/1990 | US4950107 Audible alarm device for divers |
| 08/14/1990 | CA1272619A1 Transducer fastening device |
| 08/09/1990 | DE3903195A1 Pressure testing device for pressure conduits |
| 08/08/1990 | EP0381123A1 Display for monitoring the pressure existing in a cavity |
| 08/07/1990 | US4947150 Pressure sender |
| 07/04/1990 | EP0376054A1 Apparatus having a vessel rotating around an axis, in particular an apparatus for measuring the pressure in a tyre |
| 07/04/1990 | EP0376053A1 Apparatus with a vessel rotating around an axis, in particular an apparatus for measuring the pressure in a tyre |
| 07/03/1990 | US4939338 Welded article and method of manufacture |
| 07/03/1990 | US4938062 Barometric meter |
| 06/27/1990 | EP0374858A2 Negative pressure measurement system |
| 06/14/1990 | WO1990006496A1 Magnetic linkage for bourdon tube gauges |
| 06/06/1990 | CN1042773A Improvements in and relating to sensors |
| 05/29/1990 | US4928702 Device for picking off and evaluating a pressure, in particular a pressure of a fluid |
| 05/29/1990 | US4928529 Force multiplying membrane instrument |
| 05/23/1990 | EP0369570A1 Improvements in and relating to sensors |
| 05/22/1990 | US4926681 Container content tester |
| 05/16/1990 | CN1042265A Pressure photoelectric protector for explosion-proof of single capacitor |
| 05/15/1990 | US4924905 Control devices |
| 05/10/1990 | DE3837624A1 Device for the measurement of pressure changes |
| 05/09/1990 | CN2056997U Sector gear type indictor for low limit of pressure |
| 05/09/1990 | CN1007942B Welded edge bourdon strip thermometer-manometer |
| 05/08/1990 | US4923444 Negative pressure measurement system |
| 05/02/1990 | CN2056754U General recording pressure gauge of ic engine |
| 04/18/1990 | CN2056246U Piston-type low micromanometer |
| 04/11/1990 | EP0362824A1 Catheter for pressure measurement |
| 04/11/1990 | CN1041220A Lower-limit pressure indicator for liquified gas tank |
| 03/21/1990 | CN2054902U Aneroid capsule |
| 02/28/1990 | EP0355373A2 Fluid-pressure detector |
| 02/22/1990 | DE3839612C1 Pneumatic pressure indicator |
| 02/20/1990 | US4901735 Pressure meter catheter with in-situ zero setting |
| 02/14/1990 | EP0354229A1 Hydrophonic probe. |
| 01/30/1990 | US4896538 Convertible socket for pressure gauge |
| 01/24/1990 | EP0351701A2 Pressure transducer and its manufacturing process |
| 01/17/1990 | CN2051350U Corrosion prevention pressure transducer |
| 01/10/1990 | CN2050976U Pressure signaller |
| 01/10/1990 | CN2050975U Multiway force gauge for preventing pressure drop of liquid injection |
| 01/09/1990 | US4891987 Magnetic linkage for bourdon tube gauges |
| 01/04/1990 | DE3919299A1 Corrugated diaphragm |
| 01/03/1990 | CN2050602U U-type manometer of selective sensitive area |
| 01/02/1990 | US4890503 Method for probing inside a blast furnace with a pressurized probe |
| 01/02/1990 | US4890497 In a control loop for process control |
| 12/28/1989 | WO1989012809A1 Quad-disk static pressure probe |
| 12/20/1989 | EP0347385A1 Aneroid barometer mechanism |
| 12/12/1989 | US4885940 Compact pressure gauge |
| 12/12/1989 | US4885934 Exhaust backpressure tester |
| 12/07/1989 | DE3818458A1 Device for the measurement of the pressure of liquid or gaseous media |
| 12/06/1989 | CN2048968U Oil pressure weight tester with electric sensor |
| 11/30/1989 | WO1989011601A1 Coned disk spring |
| 11/22/1989 | CN2048189U Simple piston-type pressure gauge |
| 10/18/1989 | EP0337380A2 Semiconductor pressure sensor |
| 10/11/1989 | CN2045849U Lever rack type low limit pressure indicator |
| 10/04/1989 | CN2045488U Indicator for pressure in hydraulic prop |
| 09/26/1989 | CA1261176A1 Method of, and measuring tube and measuring probe for, measuring fluid pressure in a sealed bore hole |
| 09/07/1989 | DE3806447A1 Tube spring manometer |
| 08/22/1989 | US4858467 Gauger for cars |
| 08/16/1989 | CN2042957U Pressure gauge for fire extinguisher |
| 08/15/1989 | US4856340 Pressure diaphragm for a medication infusion system |
| 08/01/1989 | US4852466 Floating diaphragm apparatus |
| 07/27/1989 | WO1989006512A1 Hydrophonic probe |
| 07/25/1989 | US4850216 Method for accurate suction/removal detection and suction/transfer apparatus for practicing the same |
| 07/19/1989 | EP0323963A1 Flangeless transmitter coupling to a flange adapter union. |
| 07/05/1989 | CN2040643U Direct zero set device for precision pressure gauge |
| 07/04/1989 | US4843887 Method and device for measuring pressures in tubular bodies |
| 06/20/1989 | US4840068 Pipe pressure sensor |
| 06/14/1989 | CN2039417U Gas pressure recorder |
| 06/13/1989 | US4838090 Multicoil bourdon tube type pressure gauge |
| 06/13/1989 | US4838088 Pressure transducer and method for fabricating same |
| 06/13/1989 | US4838087 Quad disk static pressure probe |
| 06/13/1989 | CA1255512A1 Head for a bubble tube |
| 06/07/1989 | EP0319273A1 Pressure sensing diaphragm system for medication infusion |
| 06/06/1989 | US4837068 Metal coating on polymer sheet |
| 05/31/1989 | EP0242353B1 Electric pressure detector provided with a leak indicator |
| 05/24/1989 | CN2038233U Stress pressure sensor |
| 05/24/1989 | CN2038232U Pusher pressure meter |
| 05/16/1989 | US4829836 Plug for probe nose, method for probing inside a blast furnace with a probe equipped with such a plug and device for carrying out said method |
| 05/16/1989 | US4829825 Multiple diaphragm probe seal |
| 05/10/1989 | EP0314784A1 Floating diaphragm apparatus |
| 05/09/1989 | US4827764 Needle-type tire pressure gauge |
| 05/02/1989 | US4825699 Non-deflectable adjustable bourdon gauge |
| 05/02/1989 | US4825685 Pressure transducer |
| 04/27/1989 | EP0311613A4 Pressure transducer with stress isolation for hard mounting. |
| 04/27/1989 | DE3733766A1 Method for the production of a pressure sensor |
| 04/25/1989 | US4823727 Pressure indicator |
| 04/19/1989 | EP0312332A2 Barometric meter |
| 04/19/1989 | EP0311613A1 Pressure transducer with stress isolation for hard mounting. |
| 04/19/1989 | EP0311612A1 Capacitance pressure sensor. |
| 04/11/1989 | CA1252556A1 Catheter tip pressure transducer |
| 03/29/1989 | EP0309122A2 Apparatus and method for testing |
| 03/28/1989 | CA1251655A1 Method and well tubing device for the measurement of interstitial pressure in porous layers |
| 03/07/1989 | US4809589 Corrugated diaphragm for a pressure sensor |
| 02/28/1989 | US4807479 Transducer for detecting pressure changes in pipes |
| 02/22/1989 | EP0303756A2 Thermodilution and pressure transducer balloon catheter |