| Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887) |
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| 01/23/1990 | CA1264532A1 Stop changer tool for in-service valve |
| 01/17/1990 | EP0351019A1 Repair clamp and closing means for use in said repair clamp |
| 01/17/1990 | EP0350806A2 Soil displacement hammer |
| 01/17/1990 | EP0350802A1 Method for reconstructing pipe-lines |
| 01/17/1990 | EP0350719A2 Fitting repair |
| 01/16/1990 | US4893841 Reamer guide for primary sewer line taps |
| 01/16/1990 | US4893778 Suspension system for an exhaust system of a motor vehicle |
| 01/16/1990 | US4893389 Reinstatement of lateral branch connections in relined sewers or pipes |
| 01/11/1990 | DE3822806A1 Air-bleeding device for radiators and other closed fluid systems |
| 01/10/1990 | EP0349678A1 Process and device for lining a pipe, in particular a sewer pipe |
| 01/10/1990 | CN2050921U Multi-function special-purpose equipment for installing and processing conduit |
| 01/09/1990 | US4892114 Flow-sensing shutoff valve |
| 01/04/1990 | DE3822773A1 Insert for damping turbulence in pipelines |
| 01/04/1990 | DE3821726A1 Pulsation damper |
| 01/03/1990 | EP0194278B1 Lubricant delivering coupling |
| 01/03/1990 | CN2050524U Movable pipe orifice sealing device |
| 01/03/1990 | CN1038506A Lining laminate for pipeline and operation method thereof |
| 01/02/1990 | US4891115 Apparatus for cleaning the inner surface of a pipeline from deposits and for forming a protective coating |
| 01/02/1990 | US4890373 Pipe repair apparatus and method |
| 01/02/1990 | US4890363 Safety whip checks for hoses |
| 12/28/1989 | WO1989012721A1 Process for waterproofing a deteriorated drainage channel and giving it mechanical strength and chemical resistance |
| 12/28/1989 | DE3832214C1 Process for exchanging a buried pipeline, and apparatus for carrying out the process |
| 12/28/1989 | DE3821650A1 Shut-off device for pipelines |
| 12/28/1989 | DE3821649A1 Shut-off device for pipelines |
| 12/28/1989 | DE3821020A1 Flexible connecting element |
| 12/27/1989 | EP0347584A2 Method and apparatus for removing a metallic plug from a tube by simultaneously heating and stretching the plug |
| 12/27/1989 | CN2050123U Fast-speed self-retreating blinding injection device |
| 12/27/1989 | CA1264016A2 Powder feeder |
| 12/26/1989 | US4889450 Guidance and protection system for the laying of pipes |
| 12/26/1989 | US4889449 Slipliner grouting method and system |
| 12/26/1989 | US4889370 Pipe repair assembly |
| 12/26/1989 | US4889167 Pipe repair device |
| 12/26/1989 | US4889081 Vehicle suction system |
| 12/21/1989 | DE3911835A1 Device for avoiding liquid hammer |
| 12/20/1989 | EP0347364A1 Process for the production of a hose as inner lining of a sewer pipe |
| 12/20/1989 | EP0346360A1 Apparatus for installing an insert in a pipe |
| 12/20/1989 | EP0213209B1 Lining material for duct |
| 12/20/1989 | CN2049725U Operating device capable of avoiding to contact leaked medium |
| 12/20/1989 | CN1038151A Lining of pipes |
| 12/20/1989 | CN1038150A Quick repair method for annular cracks of convection tube in industrial boilers |
| 12/19/1989 | US4887646 Test fitting |
| 12/19/1989 | US4887585 Method and apparatus for cutting taps in sewer lines |
| 12/14/1989 | WO1989012198A1 Pipe for relining underground pipelines |
| 12/14/1989 | WO1989012197A1 Resetting device for dismounting a hydraulically-actuated sealing device |
| 12/14/1989 | WO1989012196A1 Control device for actuating a valve and a sealing device |
| 12/14/1989 | WO1989012190A1 Radial pressure seal |
| 12/14/1989 | DE3820106A1 Device for shutting off large pipelines |
| 12/14/1989 | DE3818998A1 Process and apparatus for laying supply lines |
| 12/14/1989 | DE3818703A1 Opening-out device for a pipe shut-off device which can be introduced into pipelines |
| 12/13/1989 | EP0346256A1 Device for the on-site restoration of conduits inaccessible from the interior |
| 12/13/1989 | EP0345545A2 Flow noise supression for electronic valves |
| 12/13/1989 | EP0345324A1 Process for making soil impermeable to water, in particular for repairing leaking underground tubes or for improving the durability of structures |
| 12/12/1989 | US4886396 Existing pipeline renewing method and apparatus therefor |
| 12/12/1989 | US4886304 Abrasive grip pipe coupling |
| 12/12/1989 | US4886087 Fuel spill prevention valve |
| 12/07/1989 | DE3818700A1 Valve for pipe shut-off devices |
| 12/07/1989 | DE3818585A1 Shut-off valve |
| 12/07/1989 | DE3818448A1 Radial-pressure seal |
| 12/06/1989 | EP0345179A1 Adjusting or regulating valve |
| 12/06/1989 | EP0344896A1 A lining laminate for a pipeline and an operation method thereof |
| 12/06/1989 | EP0344895A2 Constant pressure variable flow implantable pump |
| 12/06/1989 | EP0344824A1 Method for installing plastic pipe sections in sewer pipes to be restored |
| 12/06/1989 | EP0344151A1 Means for repairing pipes by remote-controlled insertion of a lining |
| 12/05/1989 | US4884591 Reconnectable frangible ball valve coupling |
| 11/30/1989 | WO1989011617A1 Process for sealing damaged pipes |
| 11/30/1989 | DE3833000A1 Device for the gas-tight opening, cleaning and re-closing of a cleaning opening or the like which is closed by a plug and belongs to a gas line |
| 11/30/1989 | DE3817976A1 Device for the rapid closing of pipelines containing fluidic media |
| 11/30/1989 | DE3815083A1 Unit and process for temporarily shutting off a supply line which is under pressure |
| 11/30/1989 | DE3812320A1 Vibration-damping mount and process for its production |
| 11/29/1989 | EP0343757A2 Method of joining substrates |
| 11/29/1989 | EP0343513A1 Device for the stabilisation of a pipe of a heat exchanger |
| 11/29/1989 | EP0343229A1 Metallurgically improved tip-off tube for a vacuum enclosure |
| 11/28/1989 | US4883557 Method for lining pipe lines with a pressurized gas |
| 11/28/1989 | US4883094 Apparatus for sealing pipe |
| 11/28/1989 | US4883093 Fluid flow control device |
| 11/28/1989 | US4883085 Method of installing a stopper in a fitting and apparatus therefor |
| 11/28/1989 | US4882830 Method for improving the integrity of coupling sections in high performance tubing and casing |
| 11/28/1989 | CA1263221A1 Process for the repair by lining of a steam-generator tube and a repair lining for this tube |
| 11/23/1989 | EP0342897A2 Polymeric films |
| 11/23/1989 | EP0342246A1 Existing pipeline renewing method and apparatus therefor |
| 11/23/1989 | DE3914282A1 Arrangement for protecting pipe systems against dynamic pressure loading |
| 11/23/1989 | DE3816349A1 Device for damping noises and/or pressure surges (impulses, sudden pressure changes) in a liquid |
| 11/23/1989 | DE3815090A1 Shut-off unit for pipelines |
| 11/21/1989 | US4882470 Boring device for opening passages to branch portions of a lined main pipe line |
| 11/21/1989 | US4881725 Accumulator piston having a coil spring secured thereto |
| 11/21/1989 | US4881567 Liquid removal system |
| 11/16/1989 | WO1989011061A1 Device for sealing damaged walls of containers or tubes |
| 11/16/1989 | WO1989011060A1 Rehabilitating underground pipes |
| 11/16/1989 | DE3913834A1 Device for shutting off pipelines, ducts or other cavities |
| 11/15/1989 | EP0341941A1 Method and apparatus for lining a buried pipe with a polymer liner |
| 11/15/1989 | EP0341940A1 Method for the lining of existing pipes |
| 11/14/1989 | US4880035 Pneumatic bolster for sealing damaged walls of containers and pipes |
| 11/09/1989 | DE3814407A1 Sound-absorbing pipe lead-through |
| 11/09/1989 | DE3814405A1 Sealing piece for a connecting bore of a hydraulic assembly |
| 11/09/1989 | DE3814280A1 Device for securing gaslines which are under pressure and from which the gas meter is disconnected. |
| 11/08/1989 | EP0341144A1 Flexible pipeline, especially for transporting hydrocarbons |
| 11/08/1989 | EP0233928B1 Device for internal coating of pipes |
| 11/07/1989 | US4878649 Throttle device for high viscosity paint |
| 11/07/1989 | US4878510 Method for reducing pressure of highly compressed gases without generation of condensation droplets |
| 11/07/1989 | US4878350 Pulsation dampening device for super critical fluid expansion engine, hydraulic engine or pump in cryogenic service |