| 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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| 08/11/1981 | CA1106705A1 Air filter restriction indicating device |
| 08/11/1981 | CA1106640A1 Sphygmomanometer gauge and method of use for blood pressure measurement |
| 08/11/1981 | CA1106639A2 Vibrating diaphragm fluid pressure sensor device |
| 08/11/1981 | CA1106638A2 Vibrating diaphragm fluid pressure sensor device |
| 08/11/1981 | CA1106637A2 Vibrating diaphragm fluid pressure sensor device |
| 07/28/1981 | US4280362 Peak reading bottom hole pressure instrument |
| 07/21/1981 | US4279161 Gauge |
| 07/21/1981 | US4279160 Pressure measuring apparatus with temperature compensating means |
| 07/21/1981 | US4279145 Fuel efficiency display |
| 07/07/1981 | US4276776 Temperature/pressure transducer |
| 06/30/1981 | CA1103951A1 Pressure gauge based on use of an aneroid capsule |
| 06/23/1981 | US4274423 Catheter tip pressure transducer |
| 06/02/1981 | US4270568 Sensor with adjustable pressure responsive detection and control |
| 05/05/1981 | US4265164 Pressure detecting device |
| 04/14/1981 | US4261208 Pressure transducer |
| 03/31/1981 | US4259677 Method and apparatus for recording the compression pressure of internal combustion engines |
| 03/31/1981 | CA1098334A1 Maximum pressure manometer |
| 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 | CA1097990A1 Magnetic pressure indicator with thermal lockout |
| 03/17/1981 | US4255970 Barometer mechanism |
| 03/10/1981 | US4254731 Filter restriction indicator |
| 03/03/1981 | US4253827 Registration fixture for sensor |
| 03/03/1981 | US4253339 Gauge |
| 02/03/1981 | US4248080 Wheel-mounting tire pressure gage with failsafe features |
| 01/27/1981 | US4246908 Intracranial pressure transducer |
| 01/27/1981 | US4246799 Vacuum indicator |
| 01/27/1981 | US4246798 Pressure indicator |
| 01/27/1981 | US4246797 Pressure Indicator |
| 01/27/1981 | US4246796 Pressure gauge construction |
| 01/27/1981 | CA1094342A1 Diaphragm assembly |
| 01/20/1981 | US4245508 Pressure indicator |
| 01/20/1981 | CA1094229A1 Electrostatically deformable thin silicon membranes |
| 01/13/1981 | US4244228 Pressure transducer |
| 01/13/1981 | US4244222 Instrumentation probe |
| 01/07/1981 | EP0020339A1 Pressure gauge |
| 12/23/1980 | US4241325 Displacement sensing transducer |
| 12/23/1980 | US4240298 Motion amplifier for condition responsive gauge instrument |
| 12/23/1980 | US4240297 Pressure gauge for sphygmomanometers |
| 12/16/1980 | US4238958 Barometer |
| 12/09/1980 | US4237775 Diaphragm for pressure sensors |
| 12/09/1980 | US4237738 Pressure measuring sub-assembly and amplifier support therefore |
| 11/25/1980 | CA1090158A1 Sensor with adjustable pressure responsive detection and control |
| 11/12/1980 | EP0018418A1 Pressure transducer |
| 11/04/1980 | US4231824 Method of making a bellows |
| 11/04/1980 | US4231285 Variable rate aneroid capsule |
| 11/04/1980 | US4231261 Fluid pressure measuring device |
| 10/29/1980 | EP0018285A1 Fixture for holding a dual diaphragm pression capsule |
| 10/29/1980 | EP0018284A1 Method of vacuum sealing a capacitive pressure capsule |
| 10/29/1980 | EP0018207A1 Pressure monitoring system for electrofluidic sensing devices |
| 10/21/1980 | US4228689 Pressure relief manometer |
| 10/14/1980 | US4227420 Pressure coupling mechanism in a pressure monitoring assembly |
| 09/16/1980 | US4222390 Sphygmomanometer gauge and method of use for blood pressure measurement |
| 09/16/1980 | US4222276 Vacuum packing apparatus |
| 08/26/1980 | US4218926 Isolating pressure sensor |
| 08/19/1980 | US4217784 Tube spring manometer |
| 08/12/1980 | CA1083386A1 Gauge protector seal |
| 08/05/1980 | US4216403 Monoaxially oriented piezoelectric polymer transducer for measurement of mechanical values on bodies |
| 07/29/1980 | US4214487 Apparatus for measuring the pressure in a very small volume |
| 07/29/1980 | US4214486 Sealed casing for pressure gauge |
| 07/29/1980 | US4214474 Density monitoring apparatus |
| 07/08/1980 | US4211000 Device for producing a spring manometer measuring system |
| 07/08/1980 | CA1080993A1 Pneumatic pressure transmitter responsive to temperature and humidity |
| 07/01/1980 | US4210029 Differential fiber optic differential pressure sensor |
| 06/26/1980 | WO1980001318A1 Pressure sensitive indicating device |
| 06/24/1980 | US4209765 Tire deflation warning apparatus |
| 06/17/1980 | CA1079543A1 Combination vacuum/pressure gauge and dual purpose casing construction |
| 06/12/1980 | WO1980001152A1 Pressure gauge |
| 06/11/1980 | EP0011871A1 Pneumatic measuring device |
| 06/11/1980 | EP0011681A1 Barometer |
| 06/03/1980 | US4206437 Transducer with compensation features |
| 05/28/1980 | EP0011167A1 Method and apparatus for registration of the compression pressure of internal-combustion engines |
| 05/20/1980 | US4203385 Fluid pressure indicator |
| 05/14/1980 | EP0010584A1 Pressure controlling device |
| 05/14/1980 | EP0010569A1 Magnetic pressure indicator with thermal lockout |
| 05/13/1980 | US4203128 Electrostatically deformable thin silicon membranes |
| 05/06/1980 | CA1076832A1 Differential pressure transmitter with pressure sensor protection |
| 05/06/1980 | CA1076830A1 Static friction free altimeter |
| 04/29/1980 | US4199993 Pressure indicator |
| 04/29/1980 | US4199992 Pressure indicator |
| 04/29/1980 | US4199991 Isolation diaphragm assembly for pressure transducers and method of manufacture |
| 04/22/1980 | US4198869 Apparatus for permanently indicating maximum gas pressure in a system |
| 04/08/1980 | US4196633 Pressure gauge construction |
| 04/08/1980 | US4196623 Depth gauges |
| 04/01/1980 | US4195531 Pressure detector using an averaging circuit |
| 03/25/1980 | US4194974 Pressure monitoring device |
| 03/25/1980 | US4194401 Transducer for measuring the internal pressure in pipes |
| 03/19/1980 | EP0008900A1 Diaphragm for pressure sensors |
| 03/18/1980 | US4193307 Apparatus for indicating subsea well head pressure |
| 03/11/1980 | US4192193 Liquid filled pressure gauge |
| 03/11/1980 | US4192191 Pressure sensor |
| 03/05/1980 | EP0008351A2 Fluid-filled pressure transducer |
| 03/04/1980 | US4191193 Catheter head-type transducer |
| 03/04/1980 | US4191056 Pressure gauge spring |
| 03/04/1980 | CA1072768A1 Pneumatic transducer for underground burial |
| 02/12/1980 | US4187727 Food extruder pressure indicator |
| 02/12/1980 | CA1071426A1 Pressure sensor for high-temperature liquids |
| 01/29/1980 | US4185641 Pressure dome |
| 01/29/1980 | CA1070517A1 Method and device for determining the pore water pressure in a soil |