| Patents for F16L 55 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems (25,887) |
|---|
| 03/24/1981 | US4257628 Pipe connector and hole cutter |
| 03/24/1981 | CA1098082A1 Gill-type tip protector for sealing open tubes and the like |
| 03/19/1981 | WO1981000749A1 Process and device for sealing a non practicable conduit |
| 03/18/1981 | EP0025204A1 Method and apparatus for sealing a leak in a non-accessible pipe-line |
| 03/18/1981 | EP0025150A1 Temperature controlled valve mechanism and method |
| 03/18/1981 | EP0025033A1 Hydraulic noise attenuator. |
| 03/17/1981 | US4256445 Trowel means for lining and smoothing the interior of pipes with a protective coating |
| 03/11/1981 | EP0024709A1 Clamp joint with gasket for gas and water pipes |
| 03/10/1981 | US4254801 Quick-acting closure unit |
| 03/04/1981 | EP0024285A1 Sight glass mounting |
| 03/03/1981 | US4253684 Quick connect coupler with air shield |
| 03/03/1981 | US4253497 Live gas main insertion tools |
| 02/25/1981 | EP0024157A1 Method of lining or relining tunnels and tunnels lined or relined by such a method |
| 02/24/1981 | US4252465 Pipeline gel plug |
| 02/24/1981 | US4252152 Motorized crawler for gas main |
| 02/24/1981 | CA1096312A1 Marine vessel noise attenuating structure |
| 02/17/1981 | US4250926 Closure device with peripheral double acting inflatable seal |
| 02/11/1981 | EP0023591A1 Hydraulic control with a line rupture protection valve for a double-acting driving cylinder, used especially for positioning a strand guiding roller in a continuous casting plant |
| 02/10/1981 | US4250034 Transport conduit |
| 02/10/1981 | US4249577 Process and apparatus for sealing gas lines |
| 02/10/1981 | US4249576 Retrievable plug for offshore platforms having shear type retaining means |
| 02/10/1981 | US4249574 Orifice trim and backpressure plate for high pressure valves |
| 02/03/1981 | US4248271 Locking cap for pipe openings |
| 02/03/1981 | US4248269 Adjustable flow pulse dampener |
| 02/03/1981 | US4248268 Fluid control system |
| 01/28/1981 | EP0023084A1 Cross-linked polymer compositions and production thereof |
| 01/27/1981 | US4246926 Apparatus for removing residual water from a water system |
| 01/20/1981 | US4245970 Apparatus having a tubular inflatable bladder and a grout dispensing nozzle for connecting lateral branches to a relined main |
| 01/20/1981 | US4245663 Valve with condensate recovery device |
| 01/14/1981 | EP0022352A2 A waste trap and a refrigeration unit incorporating such a waste trap |
| 01/13/1981 | US4244895 Leak repairing process for underground pipe |
| 01/13/1981 | US4244296 Self-propelled vehicle |
| 01/13/1981 | CA1093482A1 Method and apparatus for a tapered pipeline seal |
| 01/07/1981 | EP0020987A1 Closure for tubes, bottles and the like |
| 01/06/1981 | US4243073 Surge stabilizer |
| 01/06/1981 | US4242903 Manually operated pincer mechanism for pipelines |
| 12/30/1980 | US4241814 Mechanical-hydraulic damper for a load subject to shocks and vibrations |
| 12/30/1980 | CA1092375A1 Apparatus for recovering, by means of a pipelaying craft, pipes laid on deep sea beds |
| 12/23/1980 | US4240650 Leaking weld repair clamp |
| 12/23/1980 | CA1092276A1 Process for the production of self-swelling leakage- preventing materials |
| 12/16/1980 | US4239055 Pressure plug |
| 12/16/1980 | CA1091637A1 Slide gate damper |
| 12/16/1980 | CA1091434A1 Apparatus for fabricating tubing |
| 12/10/1980 | EP0020015A1 Acoustic liner for attenuating noise |
| 12/10/1980 | EP0019855A1 Silencer for valve arrangements in pneumatic installations |
| 12/09/1980 | US4238131 Flushing T for heater hose |
| 12/09/1980 | US4237938 Energy absorbing device for pipelines |
| 12/09/1980 | US4237937 Device for sealing damaged tubular members |
| 12/09/1980 | US4237936 Pig trap closure |
| 12/02/1980 | US4237172 Sealing leaks by polymerization of volatilized aminosilane monomers |
| 12/02/1980 | US4236598 Rotating self-cleaning sound absorber for ducts |
| 12/02/1980 | US4236597 Sound-absorbing device, especially for damping of noises expanding in air ducts |
| 11/25/1980 | US4235259 Fitting replacement method |
| 11/25/1980 | CA1090270A1 Pipeline stopper and pipe fitting |
| 11/18/1980 | US4234427 Liquid chromatography |
| 11/18/1980 | US4234268 Apparatus for recovering, by means of a pipelaying craft, pipes laid on deep sea beds |
| 11/18/1980 | CA1089774A1 Porous acoustic element and a method of controlling aerodynamic noise in a flowing gas |
| 11/11/1980 | US4232762 Wide-band vibration damper |
| 11/11/1980 | US4232697 Frangible connectors with independently selectable bending and tension separation loads |
| 11/04/1980 | US4231230 Refrigerant accumulator and method of manufacture thereof |
| 11/04/1980 | CA1088975A1 Quick acting coupling |
| 10/30/1980 | WO1980002304A1 Packless silencer |
| 10/29/1980 | EP0017747A2 Refrigerant accumulator and method of manufacture thereof |
| 10/28/1980 | US4230161 Thermal manual emergency shut off valve |
| 10/28/1980 | CA1088494A1 Method to interrupt a media flow through a tubular pipe and a device for utilizing the method |
| 10/28/1980 | CA1088332A1 Apparatus and method for freezing a slug of liquid in a section of a large diameter fluid transmission line |
| 10/21/1980 | US4229341 Method of making thermally expansible rubber tubes for use in self-closing gas pipes and pipe joints |
| 10/21/1980 | US4228835 Breakaway cap for solution containers |
| 10/15/1980 | EP0017408A1 Apparatus for mixing fluids comprising fluid-flow restricting device |
| 10/14/1980 | US4227593 Kinetic energy absorbing pad |
| 10/14/1980 | US4227551 Tube banks |
| 10/14/1980 | CA1087530A1 Leak repair clamp |
| 09/30/1980 | US4225159 Fitting for smooth wall tubes |
| 09/30/1980 | CA1086664A1 Explosive activated plug |
| 09/18/1980 | WO1980001933A1 Fluidborne noise attenuator |
| 09/17/1980 | EP0015642A1 Acoustically lagged structure |
| 09/17/1980 | EP0015559A1 Sealing device for a pipe joint |
| 09/17/1980 | EP0015350A1 Protective device for a pipe opening into a vessel |
| 09/17/1980 | EP0015299A1 Apparatus and method for reaction boundary suppressor systems |
| 09/17/1980 | EP0015254A1 Valve with a helical spring as valve member |
| 09/16/1980 | US4222414 Pulse damper for high-pressure liquid chromatography |
| 09/16/1980 | CA1085643A1 Safety cap for the projecting ends of rebar, pipe and the like |
| 09/09/1980 | US4221234 Closure valves for use in coaxial flow systems |
| 09/09/1980 | CA1085262A1 Differential pressure relief valve |
| 09/03/1980 | EP0014878A1 Nozzle plug for steam generator |
| 09/02/1980 | US4220012 Apparatus for freezing a slug of liquid in a section of a large diameter fluid transmission line |
| 09/02/1980 | US4220002 Jet engine with noise energy dissipation |
| 08/26/1980 | US4218812 Method and means for rapid replacement of damaged pipe sections |
| 08/20/1980 | EP0014614A1 Dismantable device for inserting an apparatus between two conduits |
| 08/20/1980 | EP0014257A2 Fluid silencer |
| 08/19/1980 | US4218044 Pipeline lifting device |
| 08/19/1980 | CA1083922A1 Hydraulic system flow limiter |
| 08/12/1980 | US4216803 Self-sealing fuel lines |
| 08/12/1980 | US4216738 Method of renewing water pipe, including coating thereof, and apparatus therefor |
| 08/05/1980 | US4215951 Platform leg plug |
| 08/05/1980 | CA1083013A1 Accumulators |
| 07/29/1980 | US4214779 Coupling device |
| 07/29/1980 | US4214611 Tie-down for accumulator bags |
| 07/29/1980 | CA1082664A1 Railroad classification yards |
| 07/22/1980 | US4213477 Automatic damper for furnace vent pipe |