| Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887) |
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| 02/19/1992 | EP0471044A1 Extensible hose for reducing pressure pulses. |
| 02/19/1992 | EP0471042A1 Device for closing pressurized medium channels. |
| 02/19/1992 | CN2096686U Buffer |
| 02/19/1992 | CN2096685U Copper wire riser testing opening |
| 02/18/1992 | US5089684 Tooling for working within a tubular element |
| 02/18/1992 | US5089297 Method for repairing interior portions of a pipeline |
| 02/18/1992 | US5088553 Lateral cutter device |
| 02/18/1992 | CA1295983C Ball valve |
| 02/13/1992 | DE4024926A1 Lining process for pipelines repair - sealing side ducts with position indicating caps for location by liner cutting equipment after lining main pipe |
| 02/12/1992 | EP0470146A1 Apparatus for use in renovation of tube systems, in particular sewer tube systems. |
| 02/12/1992 | EP0269653B1 Apparatus for correcting irregularities in or enlarging an underground duct |
| 02/06/1992 | WO1992001889A1 Device and process for cutting off a pipe from the inside |
| 02/06/1992 | WO1992001888A1 A safety device for gas pipelines |
| 02/06/1992 | WO1992001867A1 Pressure pulsation absorber |
| 02/06/1992 | WO1992001552A1 Process for lining pipe lines |
| 02/02/1992 | CA2022432A1 Hose-aide |
| 01/30/1992 | DE4023709A1 Vorrichtung zur absorption von druckpulsationen A device for absorbing pressure pulsations |
| 01/29/1992 | EP0468058A1 Method for cutting off water in pipelines and cut-off assembly therefor |
| 01/29/1992 | CN2094672U Flow cutting machine for petroleum pipeline |
| 01/28/1992 | US5083817 Apparatus for the decoupling of two pipe parts with wire mesh cushions |
| 01/28/1992 | CA1294779C Bend detector pig |
| 01/23/1992 | WO1992001190A2 Sleeve for repairing leaks in a pipe |
| 01/23/1992 | WO1992001189A1 Method and installation for fitting an inner tube in an existing pipeline |
| 01/23/1992 | DE4023211A1 Lining pipe with film tubing - is by drawing tubular fabric through pipe, coating film tubing with adhesive and inserting inside-out in fabric by air draught |
| 01/23/1992 | DE4022916A1 Sealing concrete pipeline joint from inside - compresses deformable annular sealing element prior to inserting into pipe and joint |
| 01/22/1992 | EP0467077A1 Inflatable pipe sealing bag |
| 01/22/1992 | EP0467024A1 Method for sealing the butt gap between buried pipeline sections and device and sealing element to carry out the method |
| 01/22/1992 | EP0466865A1 Drive device for a conduit inspection treatment and maintenance apparatus |
| 01/22/1992 | EP0466779A1 Internal expansion coupling device. |
| 01/22/1992 | CN2093698U Double-acting high-pressure glue injector |
| 01/21/1992 | US5082313 Cut-in repair coupling |
| 01/21/1992 | US5082026 Pipeline plugger |
| 01/21/1992 | US5081800 Vehicular device designed to operate in enclosed canals |
| 01/21/1992 | US5081737 Apparatus for eliminating deposits of floating fibers |
| 01/21/1992 | CA1294567C Method and device for mounting a body in a conduit containing fluid |
| 01/21/1992 | CA1294543C Method of repairing or replacing piping and inflatable plug |
| 01/16/1992 | DE4021858A1 Inserting pipe or tube into elongated duct - involves compressor, discharge piece, outlet and deflector |
| 01/15/1992 | EP0466373A2 Fastening device |
| 01/15/1992 | EP0465892A1 Method for sealing a side conduit leading into a main pipe and device for carryinf out this method |
| 01/15/1992 | CN2093357U Steam heating silencer |
| 01/15/1992 | CN1057809A Splittable die |
| 01/14/1992 | US5080020 Traveling device having elastic contractible body moving along elongated member |
| 01/14/1992 | US5079824 Method for the installation of a jacket reinforcement for piping |
| 01/14/1992 | US5079805 Fastener for protective sleeves |
| 01/13/1992 | WO1992001187A1 Fuel hose breakaway unit |
| 01/13/1992 | CA2087089A1 Fuel hose breakaway unit |
| 01/08/1992 | EP0465010A2 Splittable die |
| 01/08/1992 | EP0464121A1 Improvements relating to the lining of pipelines or passageways. |
| 01/08/1992 | CN2092622U Shock absorber for hydraulic pipelines |
| 01/07/1992 | US5078546 Pipe bursting and replacement method |
| 01/07/1992 | US5078430 Pipeline for relining sewers and water lines without excavation |
| 01/07/1992 | US5078294 Method for tight sealing and hole arrangement |
| 01/04/1992 | WO1992001191A1 Process and device for sealing and renovating the inside of systems of laid ducts |
| 01/04/1992 | CA2069300A1 Process for the sealing and internal repair of systems of laid conduits and apparatuses |
| 12/31/1991 | US5077107 Lining material for pipelines |
| 12/31/1991 | US5076731 Apparatus for bursting an existing pipe and widening the bore thereof |
| 12/31/1991 | US5076730 Earth duct tunnel enlargement apparatus and method |
| 12/31/1991 | US5076618 Method and apparatus for sealing pipe joints from the interior thereof |
| 12/31/1991 | US5076328 Pressure relief valve assembly |
| 12/31/1991 | US5076311 Directly installed shut-off valve assembly for flowing high pressure line |
| 12/27/1991 | EP0462530A1 Method for sealing a pipe with a sleeve |
| 12/27/1991 | EP0462527A1 Method for inserting and aligning the connection pipes of a liner in a conduit and apparatus for carrying out such method |
| 12/27/1991 | EP0462387A1 Hydraulic control and safety system |
| 12/27/1991 | EP0462351A1 Mechanical expansion plug system |
| 12/27/1991 | EP0462233A1 Method and apparatus for avoiding scaling in water conduits and in any water piping system |
| 12/26/1991 | WO1991019928A2 Pipe fittings |
| 12/25/1991 | CN1015199B Method and device for removing water hammer affect |
| 12/25/1991 | CN1015192B Method and apparatus for airflow noise-elimination |
| 12/24/1991 | US5074943 Slip control for helically wound pipes |
| 12/24/1991 | US5074713 Connector module to deal with, extend and repair undersea lines, operated by remotely operated vehicle |
| 12/24/1991 | US5074712 Method and apparatus for remote repair of subsea pipelines |
| 12/24/1991 | US5074625 Adjustable pressure variable response fluid brake system regulators |
| 12/24/1991 | US5074336 Lightweight pipe clip for maintaining an end plug insertably coupled to an irrigation pipe outlet |
| 12/24/1991 | US5074333 Adjustment or regulation valve |
| 12/19/1991 | CA2041061A1 Hydraulic safety and regulating system |
| 12/18/1991 | EP0461964A1 Self-propelled articulated vehicle with telescopic jacks for pipeline inspection |
| 12/18/1991 | EP0461741A2 Improved length compensating joint |
| 12/18/1991 | EP0461149A1 Rubber compositions |
| 12/18/1991 | EP0461140A1 Improvements relating to the lining of pipelines or passageways. |
| 12/18/1991 | EP0329676B1 A damping treatment for pipes and bodies |
| 12/18/1991 | CN2090915U Forgeable cast iron sleeve made of three parts |
| 12/17/1991 | US5073108 Apparatus for heating pipe |
| 12/17/1991 | US5072487 For traversing a conduit and cleaning and disinfecting it from within |
| 12/17/1991 | CA1293207C Apparatus for correcting irregularities in or enlarging an underground duct |
| 12/13/1991 | CA2042330A1 Length compensating joint |
| 12/12/1991 | DE4017657A1 Union device for connecting pipe and input conduit - involves use of liner pipe composed of several joined short pipe lengths |
| 12/11/1991 | EP0460433A1 Control valve |
| 12/10/1991 | US5071616 Method of inserting rigid plastic lining tube through pipe |
| 12/10/1991 | US5071140 Self-pressurized gasket seal |
| 12/10/1991 | US5070983 Damper for hydraulic clutch actuator |
| 12/10/1991 | CA1292861C Device to be used for sealed joining of two pipes with smooth cylindrical ends |
| 12/05/1991 | DE4017765A1 System for renovating pipelines - uses deformable pipe of reduced cross=section to spring back inside pipeline |
| 12/05/1991 | DE4017238A1 Locating leaks in underground, non-metallic pipes - using electromagnetic source moving in pipe, detecting and processing electromagnetic waves contg. position information |
| 12/03/1991 | US5070220 Flow-switch construction |
| 12/03/1991 | US5069426 Internal hydraulic pipe pushing apparatus |
| 12/03/1991 | CA1292760C Unmanned articulated vehicle |
| 12/03/1991 | CA1292705C Piping lining process, and listing sleeves used for that purpose |
| 12/03/1991 | CA1292704C Pipeline packer |
| 12/01/1991 | CA2038174A1 Means for introducing inspection equipment in active pipelines |
| 11/28/1991 | WO1991018235A1 Pipe bursting and replacement apparatus and method |