| Patents for G01M 3 - Investigating fluid tightness of structures (22,573) |
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| 04/10/1990 | US4914957 Leak test adaptor apparatus for facilitating leak testing face mask respirators |
| 04/10/1990 | US4914943 Apparatus for eliminating measuring inaccuracies in a storage tank leak detection system |
| 04/10/1990 | US4914810 Apparatus for measuring the pore size of enhanced tubes |
| 04/05/1990 | DE3833127A1 Arrangement for the detection of media escaping as a result of leaks |
| 04/03/1990 | US4914395 Method and apparatus for detecting pinhole |
| 04/03/1990 | US4913986 Battery fill-post seal arrangement for hermeticity leakage testing |
| 04/03/1990 | US4913558 Method and apparatus for detecting leaks and other defects on sewers and the like channels |
| 04/03/1990 | US4913310 Storage tanks with secondary containment |
| 04/03/1990 | US4912965 Rupture disc monitor |
| 04/03/1990 | US4912963 Method and an apparatus for evaluating the gas purifying ability of a gas purifier |
| 04/03/1990 | CA1267329A1 Method for locating leaks in normally dry portions of fire sprinkler systems |
| 03/27/1990 | US4912418 Method and device for detecting the location of a fault within a dielectric layer of an electrically conducting pipe |
| 03/27/1990 | US4911200 Control of excessive fluid flow |
| 03/27/1990 | US4910998 Fluid detection system and method having a coaxial cable with solid, stranded dielectric elements |
| 03/21/1990 | EP0359570A2 Leak detecting apparatus |
| 03/21/1990 | EP0359449A2 Infuser |
| 03/21/1990 | EP0359398A2 Apparatus for detecting the presence of moisture as a result of leakage |
| 03/20/1990 | US4909280 Fastener for closing and sealing ends of pipes subjected to internal pressure |
| 03/20/1990 | US4909069 Method and apparatus for detecting leaks in rubber gloves and the like |
| 03/15/1990 | DE3830356A1 Device for testing the tightness of gas conduits |
| 03/14/1990 | EP0358164A2 Method for setting a leak indication and/or a thermal insulation gap between a wall and a lining panel as well as the application of the lining panel therefor |
| 03/14/1990 | EP0357631A1 Device for detecting and tracing leaks in piping conveying a wet medium. |
| 03/13/1990 | US4907888 Non destructive testing and other applications using retroreflective illumination |
| 03/13/1990 | US4907443 Process and apparatus for monitoring the pressure prevailing in a vessel or receptacle |
| 03/08/1990 | WO1990002323A1 Method and apparatus for testing the tightness of plates |
| 03/07/1990 | EP0356877A2 Process for controlling the tightness of a test container using a tracer gas |
| 03/06/1990 | US4905501 Jig for leak check |
| 02/28/1990 | EP0356017A2 Liquid leakage detection apparatus |
| 02/28/1990 | EP0355942A2 Method and apparatus for leak testing a fluid containing chamber |
| 02/28/1990 | EP0355699A2 Method for inspecting leakage of sealed container |
| 02/28/1990 | EP0151115B1 Ultrasonic leak detecting method and apparatus |
| 02/28/1990 | CN2053751U Automatic leak inspection device for coal gas gauge |
| 02/27/1990 | US4905263 Method and device for tightness control of a joint |
| 02/27/1990 | US4903529 Valve system analyzer |
| 02/27/1990 | US4903524 Method of and apparatus for detecting bubbles from hermetic container and method of detecting leak in hermetic container |
| 02/22/1990 | WO1990001687A1 Sensors for detecting and locating liquid leaks |
| 02/20/1990 | US4901751 Fluid control valve and system with leak detection and containment |
| 02/20/1990 | US4901576 Acoustic leak-detection system |
| 02/20/1990 | US4901574 Resilience testing |
| 02/20/1990 | US4901558 Seal integrity tester and method |
| 02/20/1990 | US4901416 Control system for manufacturing enhanced tubes |
| 02/14/1990 | EP0354733A2 Conductive resin structure for connecting metal conductors |
| 02/14/1990 | EP0354673A2 A solvent detecting sensor |
| 02/13/1990 | US4899574 Method and apparatus for detecting leaks in a sealed container |
| 02/13/1990 | US4899573 Apparatus and an associated method for leak and volume inspection of containers |
| 02/07/1990 | EP0353982A2 Apparatus for forming plastics coated tube |
| 02/07/1990 | EP0353524A2 Apparatus for testing the water impermeability of cloths |
| 02/07/1990 | EP0353247A1 A system for determining liquid flow rate through leaks in impermeable membrane liners |
| 02/06/1990 | USRE33160 Method and apparatus for inspecting lateral lines |
| 02/06/1990 | US4898023 Apparatus for detecting internal pressure of a can |
| 02/06/1990 | US4898021 Quantitative air inleakage detection system and method for turbine-condenser systems |
| 02/06/1990 | CA1265357A1 Method and a device for detecting leakage of a tube section |
| 02/01/1990 | DE3923793A1 Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour |
| 01/31/1990 | EP0352371A2 Detector for helium leaks |
| 01/31/1990 | EP0352283A1 Fluid leak detection system for determining the rate of fluid leakage through a geomembrane |
| 01/30/1990 | US4897551 Leak detector |
| 01/30/1990 | US4896530 Method of leak testing, leak testing device, and temperature measuring device as well as a method for measuring a temperature value |
| 01/30/1990 | US4896528 Tank bottom leak testing and apparatus |
| 01/30/1990 | US4896527 Solvent leak detecting sensor |
| 01/25/1990 | WO1990000698A1 Means for and method of detecting and controlling pipeline leakages |
| 01/25/1990 | DE3825016A1 Method for the testing of cavities for leakage losses, and test set for carrying out the method |
| 01/25/1990 | DE3824987A1 Method for the determination of the test time of an arrangement for testing cavities for leakage losses, and arrangement for carrying out the method |
| 01/23/1990 | US4896052 Overflow and leakage detection system for an air conditioning unit |
| 01/23/1990 | US4895018 Gas leakage detector |
| 01/18/1990 | DE3824172A1 Method for the location of leaks in pipework |
| 01/17/1990 | EP0351061A2 Leak detector |
| 01/16/1990 | US4894636 Oil leakage detection device |
| 01/16/1990 | US4894539 Leak detector |
| 01/16/1990 | US4893499 Method and apparatus for detecting leaks in IC packages by sensing package deflections |
| 01/16/1990 | US4893498 Method and apparatus for detecting liquid leaks |
| 01/16/1990 | US4893497 Leak detection system |
| 01/11/1990 | DE3831006C1 Tightness test set and pressure meter for gas conduits and gas consumption devices |
| 01/10/1990 | EP0350428A2 Method and apparatus for testing for refrigerant leaks |
| 01/10/1990 | EP0350401A1 Method and device for tightness-failure identification of nuclear reactor neutron absorber rod |
| 01/09/1990 | US4892114 Flow-sensing shutoff valve |
| 01/08/1990 | EP0267956A4 Index-sight. |
| 01/03/1990 | EP0348920A2 Process and circuit for monitoring pipes, especially for detecting leaks in a heating pipe system |
| 01/02/1990 | US4890485 Mechanism which reacts to the presence of oil and/or water |
| 01/02/1990 | US4890483 Apparatus for testing the watertight capacity of pipes |
| 12/27/1989 | EP0347452A1 Counterflow leak detector with high and low sensitivity operating modes. |
| 12/26/1989 | US4888980 Apparatus and method for testing, filling and purging closed fluid systems |
| 12/26/1989 | US4888979 Leak detection aid |
| 12/26/1989 | US4888978 Instrument to measure leakage of steam from a steam trap |
| 12/19/1989 | US4887646 Test fitting |
| 12/19/1989 | US4887457 Fixture and method of testing for soft package leak integrity |
| 12/14/1989 | WO1989012289A1 Methods, systems and apparatus for detecting changes in variables |
| 12/14/1989 | WO1989012216A1 Apparatus for registering leakage or unintended consumption in a pipe system |
| 12/14/1989 | DE3819300C1 Method for testing the leak-tightness of sealing elements in shut-off fittings and a device for carrying out the method |
| 12/13/1989 | CN2049330U Portable multifunction monitor for refrigerator |
| 12/12/1989 | US4885931 System for detecting leaks in underground fuel tanks and the like |
| 12/12/1989 | US4885930 Garment pressurizing apparatus |
| 12/06/1989 | EP0344345A1 Pumpsystem for a leak detecting apparatus |
| 12/06/1989 | CN2048843U Apparatus for testing sealin degree of lid |
| 11/30/1989 | WO1989011344A1 Method of coating and testing a tank |
| 11/28/1989 | US4883087 Central heating system and water system and method for controlling the tightness thereof |
| 11/28/1989 | US4882929 Apparatus and process for measuring changes in effect of tidal forces |
| 11/28/1989 | CA1263255A1 Tank leakage detector |
| 11/23/1989 | EP0342905A2 Leak detector |
| 11/23/1989 | DE3916566A1 Verfahren und vorrichtung zur pruefung der dichtigkeit von gefuellten behaeltern Method and apparatus for testing the tightness of filled containers |
| 11/21/1989 | US4882543 Vacuum testing apparatus having a test enclosure with a rotatable sleeve |