| Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887) |
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| 05/03/1989 | EP0205367B1 Under pressure inflatable device for obturating a conduit comprising a self-clamping device for reinforced layers |
| 05/03/1989 | DE3735880A1 Inner tube with a noise-reducing additive |
| 05/02/1989 | US4826217 Apparatus and method for sealing a tube joint |
| 05/02/1989 | US4826036 Nozzle dam sealing system |
| 05/02/1989 | US4825969 Wide track vehicle |
| 05/02/1989 | CA1253408A1 Removable shutter for an orifice which is only accessible by means of a narrow passage |
| 04/27/1989 | DE3735081A1 Pressure-pulsation damper for flow media |
| 04/27/1989 | DE3735059A1 Device for protection in the outlet region of a pipe |
| 04/26/1989 | CN1032582A Method and apparatus for replacing section of tubing |
| 04/26/1989 | CN1003984B Heating tool for heating pipe connector sleeves |
| 04/25/1989 | US4823977 Abandoning plug for hose nozzle |
| 04/25/1989 | US4823846 Tube plug tip restrainer apparatus |
| 04/25/1989 | US4823844 Fluid pressure surge damper for a fluid system |
| 04/25/1989 | US4823651 Expansion plug and tool |
| 04/20/1989 | WO1989003459A1 Process for repairing pipes |
| 04/20/1989 | WO1989003296A1 A method for the manufacture of helical pipes and an apparatus for the connection of strips |
| 04/20/1989 | DE3801620A1 Sealing plug for cable ducts |
| 04/19/1989 | EP0311748A2 Method for replacing a section of tubing |
| 04/18/1989 | US4821777 Device for damping pressure surges in pipelines, especially sanitary installations |
| 04/18/1989 | US4821768 Tranquillizer device for requlating the flow profile of fluid |
| 04/13/1989 | DE3733189A1 Diaphragm-type damping capsule |
| 04/13/1989 | DE3733142A1 Device for shutting off gas-channelling lines |
| 04/13/1989 | DE3732694A1 Process and apparatus for lining sewers |
| 04/12/1989 | EP0311585A2 Apparatus and method for improving the integrity of coupling sections in high performance tubing and casing |
| 04/12/1989 | EP0310679A1 Apparatus for boring at branching portion of lined pipe |
| 04/12/1989 | CN2035828U Combined filtering and water-draining valve |
| 04/11/1989 | US4820422 Connecting into system casing filled with movable spheres |
| 04/11/1989 | US4819722 Metal well screen assembly with plastic end fitting and method of attaching same |
| 04/11/1989 | US4819721 Remotely controlled articulatable hydraulic cutter apparatus |
| 04/11/1989 | US4819698 Water hammer arrester |
| 04/11/1989 | US4819525 Rotary cutting tool device and method for use |
| 04/11/1989 | US4819315 Process for attachment of a hollow cylindrical component within a tube and cylindrical component for carrying out this process |
| 04/11/1989 | CA1252399A1 Conforming pipe |
| 04/11/1989 | CA1252398A1 Pipe repair sleeve apparatus and method of repairing a damaged pipe |
| 04/11/1989 | CA1252394A1 Three-way valve for an attenuator |
| 04/06/1989 | WO1989003003A1 Process and means for repairing pipes by remote-controlled insertion of a lining |
| 04/06/1989 | WO1989002821A1 Lining material of pipeline |
| 04/06/1989 | DE3722060A1 Safety valve protective system |
| 04/05/1989 | EP0205621B1 Lining material for pipes |
| 04/04/1989 | US4818314 Process for lining a high pressure pipeline |
| 04/04/1989 | US4818167 Tapered screw member having guide means |
| 04/04/1989 | US4817994 Aseptic pipe joint |
| 04/04/1989 | US4817991 Safety fitting for a vacuum orifice in a swimming pool |
| 04/04/1989 | US4817716 Pipe connector and method of applying same |
| 04/04/1989 | US4817671 High pressure mechanical plug device |
| 04/04/1989 | US4817450 Pressure/temperature test plug assembly |
| 03/30/1989 | DE3733463C1 Process and apparatus for exchanging pipes |
| 03/30/1989 | DE3730315A1 Process and apparatus for repairing sewer pipes |
| 03/29/1989 | EP0309078A2 Method of apparatus for expanding and sealing a sleeve into a surrounding tube |
| 03/28/1989 | US4815650 Hydraulically activated welding flange |
| 03/23/1989 | DE3828971A1 Sealing ring for sealing glass-fibre-reinforced-plastic pipes |
| 03/22/1989 | EP0307416A1 Sanitation machine for repairing and sealing inaccessible ducts. |
| 03/22/1989 | CN1031812A Method and apparatus deforming reformable tubular pipe liners |
| 03/21/1989 | US4813569 Pressure test cap for plumbing drain pipes |
| 03/21/1989 | US4813456 Hydraulic flange seal clamp |
| 03/21/1989 | US4813225 Chain for use in device for preventing rupturing of a pipeline |
| 03/21/1989 | CA1251407A1 Crack stopping in pipelines |
| 03/16/1989 | DE3729311A1 Device for shutting off gas lines |
| 03/15/1989 | EP0307199A2 Heat recoverable article |
| 03/14/1989 | US4811759 Device for the fluidtight closure of an aperture extending through a wall |
| 03/14/1989 | US4811756 Safety valve |
| 03/14/1989 | US4811753 Recreational vehicle drain vent |
| 03/14/1989 | US4811652 Constant differential overpressure device |
| 03/14/1989 | CA1251235A1 Breakaway fluid system |
| 03/08/1989 | CN1031595A Airflow noise-elimination method and apparatus |
| 03/07/1989 | US4810453 Method for applying a protective coating |
| 03/07/1989 | US4810008 Method and apparatus for repairing lawn sprinkler systems |
| 03/07/1989 | US4809864 Device for sealing the gap between a container opening and a relatively movable filler pipe |
| 03/07/1989 | US4809751 Pressure test cap |
| 03/02/1989 | DE3728012A1 Process for sealing a leakage point in a buried pipeline to which it is not possible to gain access by foot |
| 03/01/1989 | EP0304914A1 Method and apparatus for lining pipe lines |
| 02/28/1989 | US4808253 Method and apparatus for performing a repair on a contoured section of a composite structure |
| 02/28/1989 | US4807473 Thermoplastic sight monitor |
| 02/23/1989 | WO1989001588A1 Slip control for helically wound pipes |
| 02/23/1989 | DE3739714C1 Device for closing and sealing the free end of a cable conduit |
| 02/22/1989 | EP0159984B1 Break-away coupling for hoselines |
| 02/21/1989 | US4805920 Pipe seal and closure member |
| 02/21/1989 | US4805733 Active silencer |
| 02/16/1989 | DE3726258A1 Device for shutting off tubular transport lines for liquid or gas |
| 02/15/1989 | EP0302931A1 Suction device |
| 02/14/1989 | US4804565 Pads for absorbing pressure shocks and method of manufacture thereof |
| 02/14/1989 | US4804209 Plummer's union |
| 02/14/1989 | US4804018 Grouted closure assembly |
| 02/14/1989 | US4804015 Connection device avoiding contamination |
| 02/14/1989 | CA1250027A1 Process for welding pipe ends and an insulating ring therefor |
| 02/14/1989 | CA1249925A1 Method and apparatus for repairing a pipeline |
| 02/09/1989 | WO1989001111A1 Process for renewing the inside inacessible pipes |
| 02/09/1989 | WO1989001110A1 A heat transfer device |
| 02/09/1989 | WO1989001107A1 A pipe clip |
| 02/09/1989 | WO1989001065A1 Device for preventing the deposit of fly fibre |
| 02/09/1989 | DE3744718A1 Device for the explosive generation of air blasts |
| 02/09/1989 | DE3727786A1 Verfahren und vorrichtung zum installieren einer neuen rohrleitung innerhalb einer bestehenden rohrleitung Method and apparatus for installing a new pipeline within an existing pipeline |
| 02/09/1989 | DE3725147A1 Sound-insulating component |
| 02/08/1989 | EP0302061A1 Pipe for relining underground pipelines. |
| 02/07/1989 | CA1249762A1 Flow stabilizing valve, method and pressure reducer |
| 02/02/1989 | DE3724245A1 Protective diaphragms for pipelines |
| 02/01/1989 | EP0301895A1 Methods of lining tubular objects |
| 02/01/1989 | EP0301697A2 A method and apparatus for producing a deformed pipe liner of tubular cross-section. |
| 02/01/1989 | EP0301204A1 Lining for the internal renovation of pipelines and use thereof |
| 02/01/1989 | CN2031869U Means for stopping flow from or in pipe |