Patents
Sitemap › F17 - Storing or distributing gases or liquids › F17D - Pipe-line systems; Pipe-lines › F17D 5 - Protection or supervision of installations
Patents for F17D 5 - Protection or supervision of installations (3,893)
10/1991
10/29/1991US5060509 Secondary containment system using flexible piping
10/09/1991EP0450814A1 Pipe inspection system
10/09/1991EP0264420B1 Pipeline vehicle
10/08/1991CA1290263C Double-containment thermoplastic pipe assembly
10/03/1991WO1991014837A1 Method and apparatus for preventing water damages due to leaks in plumbing in buildings
09/1991
09/25/1991EP0229762B1 Method and apparatus for detecting leaks and other defects on sewers and the like channels
09/17/1991US5049312 Dimethyl sulfide odor detection
09/10/1991US5046519 Method and apparatus for monitoring a fluid conduit system
09/09/1991WO1991014127A1 Apparatus for inspecting the interior of a lateral pipeline
09/09/1991CA2075709A1 Apparatus for inspecting the interior of a lateral pipeline
08/1991
08/20/1991US5040408 Sump-riser
08/14/1991EP0440828A1 Gas monitoring system with leak detection and flow cutoff
07/1991
07/10/1991CN1052936A Gas shutoff apparatus
07/02/1991US5027842 Process for commissioning pipelines
05/1991
05/28/1991US5018451 Extendable pipe crawler
05/21/1991CA1284288C Safety valve actuator
05/15/1991EP0426803A1 Leak detection for hydraulic drive systems.
04/1991
04/24/1991EP0423258A1 Cable for locating fluids.
03/1991
03/21/1991DE3930530A1 Leakage monitoring system for thermally-insulated pipeline - uses longitudinal monitoring wires embedded in insulation with monitoring of complex electrical resistance
03/20/1991EP0417763A2 Procedure to assess the existence of a fixation between to end-points of pipes
03/19/1991US5000224 Water shut-off valve assembly
03/06/1991EP0415848A1 Method for monitoring flexible tubular cables and pipes during operation and acoustical pickup to implement this method
03/06/1991EP0414854A1 Liquid-detecting cable.
03/05/1991US4998208 Piping corrosion monitoring system calculating risk-level safety factor producing an inspection schedule
02/1991
02/05/1991US4991006 Apparatus using an everted hose for inspecting the interior of a lateral pipeline
02/05/1991US4990851 Transient electromagnetic method for detecting irregularities on conductive containers
12/1990
12/19/1990EP0402747A2 District heating pipe
12/18/1990US4978947 Rupture disk assembly
12/05/1990EP0400818A1 Rupturable fluid flow indicator
11/1990
11/28/1990EP0399062A1 Monitoring of gas flow
11/22/1990DE4016004A1 Hydraulic drive for mining machinery with leakage monitor - produces alarm signal when actual value of pressure in hose falls below idling set-point value
11/20/1990WO1990014584A1 Leak detection for hydraulic drive systems
11/20/1990US4972179 Liquid leakage detection apparatus including wheatstone bridge
11/20/1990CA2033162A1 Leak monitor for hydraulic drive systems
11/15/1990WO1990013765A1 Safety valve
11/14/1990CN2065734U Toxic gas alarm controller
11/14/1990CN1046968A Protective system for power station pressure pipes blasting
10/1990
10/31/1990DE3913800A1 Accommodation of thermal expansion in pipework - has short branch pipe welded to main pipe forming cylindrical chamber enclosing sealed flexible metal bellows
10/28/1990CA2015662A1 Safety valve
10/16/1990US4964059 Apparatus for inspecting a pipeline
09/1990
09/27/1990DE3909337A1 Method and apparatus for testing underground pipes, carrying gas or liquid, for leakage
09/11/1990US4955988 Gas safety vent device
09/07/1990WO1990010209A1 Liquid-detecting cable
09/07/1990WO1990010208A1 Cable for locating fluids
08/1990
08/29/1990EP0383864A1 Means for and method of detecting and controlling pipeline leakages
08/18/1990CA2008727A1 Method and apparatus for monitoring a fluid conduit system for leaks
08/15/1990CA2008495A1 Incompressible fluid for leaks
08/14/1990CA1272778A1 Method and apparatus for detecting leaks and other defects on sewers and the like channels
08/07/1990US4945775 Inertial based pipeline monitoring system
07/1990
07/18/1990CA2006656A1 Apparatus for monitoring a fluid conduit system for leakage points
07/17/1990US4941501 For controlling the watering of a patch of earth
07/10/1990US4939923 Method of retrofitting a primary pipeline system with a semi-rigid pipeline
06/1990
06/13/1990CN1042979A Release valve for controlling the pressure-increasing rate and maximum pressure in pipe
06/05/1990US4930544 Double-containment thermoplastic pipe assembly
06/05/1990US4930536 Pipeline road crossing sealing system
05/1990
05/30/1990CN2057725U Multi-functional deomestic gas alarm
05/22/1990US4926901 Fluid supply line flow control device
05/22/1990US4926899 Transition conduit system for fuel pump
05/15/1990US4925622 Treadable insulation system with lagging support
05/01/1990US4922233 Flow sensor and system incorporating the same for monitoring steam turbine drain valves
04/1990
04/10/1990US4916437 Gas monitoring system with leak detection and flow cutoff
04/03/1990US4913558 Method and apparatus for detecting leaks and other defects on sewers and the like channels
04/03/1990CA1267330A1 Air leak detection system
03/1990
03/27/1990US4912332 Non-destructive methods for detecting organic deposits and removing them
02/1990
02/28/1990EP0356017A2 Liquid leakage detection apparatus
02/21/1990CN2053303U Automatic safety controller for gas flow
02/14/1990CN2052853U 阀门保安器 Valve protector
01/1990
01/25/1990WO1990000698A1 Means for and method of detecting and controlling pipeline leakages
12/1989
12/19/1989US4887638 Regulator
11/1989
11/28/1989US4883087 Central heating system and water system and method for controlling the tightness thereof
10/1989
10/25/1989EP0338070A1 Treadable insulation system with lagging support
10/17/1989US4874015 Monitoring system
10/05/1989WO1989009417A1 Detector
10/05/1989DE3910016A1 Method of constantly and automatically inspecting leakage-monitoring devices of a long-distance line
10/03/1989US4871014 Shell and tube heat exchanger
10/03/1989US4870856 Split fittings useful in forming a secondary semi-rigid pipeline over primary pipelines
09/1989
09/19/1989US4867201 Parallel-motion dual-diaphragm valve
09/06/1989EP0330859A1 Monitoring system
08/1989
08/22/1989US4858681 Shell and tube heat exchanger
08/15/1989US4856937 Pipeline systems
08/02/1989EP0326259A1 A liquid transporting pipeline having a liquid leakage sensor
08/01/1989US4852391 Pipeline vehicle
07/1989
07/04/1989CA1256978A1 Device for detecting the presence of a gas in a liquid contained in an enclosure
06/1989
06/28/1989CN2040213U Gas pressure adjusting cabinet
06/13/1989US4839790 Gas accident preventive unit
05/1989
05/17/1989CN2037590U Automatic fume exhauster
05/05/1989WO1989004047A1 Treadable insulation system with lagging support
04/1989
04/12/1989CN2035838U Combustible-gas leakage-monitoring instrument
03/1989
03/21/1989CA1251407A1 Crack stopping in pipelines
03/08/1989EP0306467A1 Automatic cut-off device for a double-walled fluid transporting network
02/1989
02/28/1989US4807661 Fluid control valve
02/22/1989EP0304053A2 Apparatus for inspecting a pipeline
02/21/1989US4805444 Secondary containment system
02/15/1989EP0303583A2 Regulator
02/09/1989WO1989001112A1 Device to prevent from water damages in buildings
01/1989
01/25/1989EP0300647A1 Duct testing
01/12/1989WO1989000283A1 Duct testing
01/10/1989US4797666 Method and apparatus for monitoring fluid flow
12/1988
12/29/1988DE3720345A1 Process for the early detection of leakage points in a water-pipe network
12/28/1988CN88211427U Automatic liquefied-petroleum-gas safety device
1 ... 27 28 29 30 31 32 33 34 35 36 37 38 39