Patents for G01M 3 - Investigating fluid tightness of structures (22,573)
05/1992
05/14/1992DE4136927A1 Leak detection and location in pipes, esp waste water pipes - involves applying potential on waste water flow
05/14/1992DE4035739A1 Leakage testing device for valve - uses reciprocating piston for supplying test pressure fed to valve seat
05/12/1992US5112196 Method and apparatus for analyzing the operating condition of a machine
05/12/1992US5111684 Method and apparatus for leak testing packages
05/12/1992CA1300399C Apparatus to check the integrity of gas-tight seals between sections ofpipe
05/12/1992CA1300396C2 Seal testing of containers
05/07/1992DE4035092A1 Detecting impermissible mixtures of media in heat exchangers - using medium of known concn. for one period with increase in concn. after defined period for timely leak detection
05/06/1992EP0483498A2 Piezoelectric air pressure variation detector
05/06/1992CN2103804U Harmless detector for can vacuum degree
05/05/1992USH1045 Air bubble leak detection test device
04/1992
04/30/1992WO1992007249A1 Methods and sensor systems for sensing hydrocarbon-containing fluids based on fluorescence detection
04/30/1992WO1992006932A1 Covering material for optical-fiber sensor for detecting leakage oil
04/30/1992DE4042421A1 Container volume measuring method
04/30/1992DE4034106A1 Battery cell leakage testing device using pressurised air - compares measured pressure drop within each battery with reference value obtained from defined curve
04/29/1992EP0482422A2 Method of testing the fluid tightness of cells of starter-batteries using compressed air
04/28/1992US5109218 Hydrocarbon detection circuit
04/28/1992US5109215 Means and method for monitoring a protective garment
04/28/1992US5109202 Conductive resin structure for connecting metal conductors
04/28/1992US5107699 Area converter for volumetric leak detector
04/28/1992US5107698 Smoke generating apparatus and method for in situ vacuum leak detection
04/28/1992US5107697 Tracer gas leak detection system
04/28/1992CA1299394C Testing containing seals
04/28/1992CA1299393C Process for monitoring the leaktightness of a storage facility, and storage for utilizing it
04/23/1992DE4033473A1 Measuring leakage rate of slide ring seal - mixes leakage fluid in gaseous state with inert gas and measures concentration of leakage fluid in the mixt.
04/22/1992EP0481414A1 Leak detection using tracer gas
04/21/1992US5105654 Method for inspecting leakage of sealed container
04/21/1992US5105653 Pressure testing device for vehicle radiators and cooling systems
04/15/1992CN2101865U Display for air leakage
04/14/1992US5103675 Signal detector and method for detecting signals having selected frequency characteristics
04/09/1992DE4031347A1 Heater leak indication device - automatically cuts out feed pump when leak detected by differential pressure switch
04/08/1992EP0478950A2 Device for detecting and signalling fluids
04/08/1992CN2101230U Main shaft diameter variation structure for mechanical seal experiment bench
04/07/1992US5103410 Line leak test apparatus with jam proof reset
04/07/1992US5102481 Method of building double walled fibrous reinforced resinous storage tanks with common rib supports
04/07/1992US5102012 Fuel dispensing system having a flexible hose with a static dissipater and a fuel leak detector
04/07/1992US5101657 Sensors for detecting and locating fluids
04/02/1992WO1992005418A1 Hydrostatic testing apparatus
04/02/1992DE4114601A1 Sewerage pipe inspection appts. - has inspection units movable in pipe and radio link for control and evaluation
04/01/1992EP0477640A1 Device for controlling the tightness of a piece
03/1992
03/25/1992EP0477167A2 Method and arrangement for area monitoring
03/24/1992US5099437 Emissions monitoring and tracking system
03/24/1992US5099108 Electric control system for liquid heating apparatus of the pulse combustion type
03/24/1992US5098643 Method for detecting leaky rods in a nuclear fuel assembly
03/24/1992US5097697 Method and apparatus for airburst testing condoms and the like
03/24/1992CA1297986C System for monitoring pipelines
03/19/1992WO1992004610A1 Apparatus and methods for detection of leaks in pressurized pipeline systems
03/19/1992WO1992004609A1 Fuel dispensing system and method of making the same
03/19/1992WO1991019191A3 Multi-level probe and system for measurement of physical conditions in liquid-containing tanks
03/19/1992DE4029186A1 Monitoring system for waste water channels - electronically detects waste water escaping from and ground water entering pipes using pulse echo measurement
03/19/1992DE4028883A1 Indicating unwanted operating state of machine, esp. leak - by detecting change in reflectivity of reference surface when moistened
03/18/1992EP0475246A1 High flow leak detector with three molecular filters
03/18/1992CA2051533A1 Procedure for monitoring an area of ground
03/17/1992US5095739 Tank leak detector
03/17/1992US5095738 Internal combustion engine head leak tester
03/17/1992US5095737 Ribbed storage tanks made of metal
03/17/1992US5095736 Portable gas cylinder safety delivery system
03/17/1992CA1297576C Ultrasonic transducer and current loop transmitter
03/11/1992EP0474066A1 Gas pumping apparatus by a liquid sealed vane pump and application to helium leakage detectors
03/04/1992EP0473173A2 Apparatus and method for detecting leaks in packages
03/04/1992EP0472690A1 Method and apparatus for leak testing
03/04/1992CN2098027U Double-sensor cable leakage-testing instrument
03/04/1992CN2098026U Halogen chase leaks tube with measuring pressure
03/04/1992CN2098025U Rotary steel cylinder angle valve check table
03/03/1992US5092367 Asymmetrical skid assembly
03/03/1992US5092162 Static pressure testing apparatus
03/03/1992US5092161 Duct testing
03/03/1992US5092158 Apparatus for testing leak detectors
03/03/1992CA1296583C Heat exchanger leak detection
02/1992
02/25/1992US5091716 Liquid line leak detection method and apparatus
02/25/1992US5091715 Leak detection and alarm system
02/25/1992US5090871 Junction assembly with leak detection means
02/25/1992US5090259 Pipe-inspecting apparatus having a self propelled unit
02/25/1992US5090234 Positive displacement pump apparatus and methods for detection of leaks in pressurized pipeline systems
02/20/1992WO1992002833A1 A method for deconvolution of non-ideal frequency response of pipe structures to acoustic signals
02/20/1992WO1992002789A1 Automatic tank gauging system with a quasi-static reference subsystem
02/20/1992DE4042396A1 Sewer leak locating system - has pressure chamber formed between double walls on travelling remote controlled machine
02/20/1992DE4025751A1 Seal tester for individual units of telecommunications system - uses pressure plate connected to plug in unit and main unit e.g. short wave receiver and transmitter
02/18/1992US5089214 Apparatus for monitoring the pressure within a cask containing radioactive material
02/18/1992US5088317 Method and apparatus for detecting liquid leaks from above-ground storage tanks
02/18/1992CA1295851C Instrument to measure leakage of steam from a steam trap
02/13/1992DE4039863C1 Insulated double pipe - has nested pipes with foaming heat insulation in between, plus leakage sensor line below inner pipe, screened from insulation by cover film
02/12/1992EP0470366A2 Leak detecting method for vessels
02/12/1992CN2096060U Pocket leakage detector
02/12/1992CN2096059U Positive and negative pressure leakage detector for insulation pipe outlet
02/11/1992US5086806 Automatic flow control system and flood protector
02/11/1992US5086644 Ultra sensitive leak detection
02/11/1992CA1295683C Method for detecting of a damage of a corrosion-resistant protective layer and measuring device for performing the method
02/06/1992DE4024049A1 Monitoring sealing of water barriers in building structure - using electrical sensors between inner structure and roof covering connected to evaluation unit
02/05/1992CN1058484A Apparatus and method for monitoring pressure within cask containing potentially hazardous gas
02/04/1992US5086403 Liquid leak test probe with compensation for gas in line
02/04/1992US5085576 Apparatus and method for detecting leaks in a system for delivering gaseous fuel
01/1992
01/29/1992EP0468233A2 Cask for storage or transport of radioactive materials
01/29/1992EP0467988A1 Method and apparatus for testing personal barriers
01/29/1992CN1058269A Full automatic monitoring method and apparatus for inflated cable leakage inspection
01/28/1992US5084764 Pipe inspection system
01/28/1992US5083451 Method and apparatus for monitoring aircraft fuselage deterioration
01/23/1992WO1992001232A1 Method and apparatus for testing a proctective barrier material for pinholes and tear strength
01/22/1992EP0466825A1 Quantifying isolation valve leakage
01/22/1992CN2094055U Vacuum in cans measuring and controlling apparatus
01/21/1992US5083082 Dipping into liquid polymer to evidence bubbles from cavities in sample; thermal, shock test; endcapped perfluoro propylene glycol polyether