| Patents for F16L 57 - Protection of pipes or objects of similar shape against external or internal damage or wear (3,889) |
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| 04/07/1999 | EP0906536A1 Abrasion protection |
| 03/23/1999 | US5884851 Abrasion resistant lined sweep nozzle |
| 03/23/1999 | US5884650 Suppressing cavitation in a hydraulic component |
| 03/17/1999 | CN1042569C Hard-face welding-patching transport steel pipe and its producing method and equipment |
| 03/02/1999 | US5876070 Pipe flange connection for pressure retaining, abrasive/corrosive service |
| 02/16/1999 | CA2165093C An improved jacket reinforcement for piping |
| 02/16/1999 | CA2139544C Tool for mounting a protective sleeve onto a hose and method of use therefor |
| 02/03/1999 | EP0894103A1 Process for the preparation of creep-resistant polypropylene block copolymers |
| 01/28/1999 | DE19831478A1 Underbody tubing system for e.g. vehicle brake lines and fuel pipes |
| 01/13/1999 | EP0890779A1 Method for sealing a pipe using a welded cap |
| 01/07/1999 | DE19727102A1 Pipe switch for twin-cylinder viscous fluid pumps |
| 01/05/1999 | CA2012416C Thermoplastic molding compositions with high cold impact strength |
| 12/30/1998 | EP0887902A2 Flexible protective sleeve |
| 12/30/1998 | EP0886902A1 Split corrugated sheath with a sound-proofing function |
| 12/23/1998 | EP0886358A2 Protective sleeve for cables, strands, cable harnesses and the like |
| 12/23/1998 | CN1202958A Fire resistant pipe |
| 12/17/1998 | WO1998057403A1 Foam coated convoluted tubing |
| 12/17/1998 | CA2292507A1 Foam coated convoluted tubing |
| 12/16/1998 | EP0883769A1 Multilayer pipe |
| 12/16/1998 | EP0883768A1 Multilayer pipe |
| 12/09/1998 | EP0882923A2 Hose protector system |
| 12/09/1998 | EP0882571A1 Polyolefin-covered steel pipe possessing excellent resistances to thermally oxidative deterioration and weathering and process for manufacturing the same |
| 11/24/1998 | US5839613 Device for casing a piping interior |
| 11/05/1998 | WO1998049404A1 Coating composition and method |
| 11/03/1998 | US5829485 Flexible tubular sleeve |
| 11/03/1998 | CA2086944C Wraparound closure device |
| 10/27/1998 | CA2034817C Drill pipe/casing protector |
| 10/11/1998 | CA2231028A1 Method and articulated structure for the protection of flexible pipelines in the open sea |
| 09/23/1998 | CN1039894C Lightweight explosion flap, in particular for pipelines |
| 09/19/1998 | CA2232742A1 Enhanced features for backflow prevention device cover |
| 09/09/1998 | EP0862711A2 Pipe bend for feed pipes for feeding liquids or gases which may possibly be laden with solids |
| 09/08/1998 | US5803126 Protective closure |
| 09/05/1998 | CA2199206A1 Device for pushing a tube of plastics material for internally casing a metal piping to be renovated |
| 09/02/1998 | EP0661490B1 Hose with protector |
| 09/01/1998 | US5799705 Fire resistant pipe |
| 08/19/1998 | CN1190929A Sandwich structure |
| 08/12/1998 | EP0857272A1 Fire resistant pipe |
| 08/04/1998 | US5787934 Method of preventing a fast propagation of cracks at plastic tubes and plastic tubes produced in accordance with such method |
| 08/04/1998 | CA2077292C Method of and lining for water intake pipes |
| 07/23/1998 | WO1998032202A1 Integral corrugated jacket pipe and method of producing the same |
| 07/16/1998 | WO1998030829A1 A protector for the end of a non-threaded pipe |
| 07/16/1998 | WO1998030828A1 Box end protector for transport and/or storage and stacked pipes |
| 07/16/1998 | DE19700916A1 Einteiliges Hüll-Wellrohr und Verfahren zu seiner Herstellung One-piece corrugated jacket pipe and process for its preparation |
| 07/14/1998 | US5779276 Connector apparatus for containing a fluid |
| 06/24/1998 | EP0848662A1 Sandwich structure |
| 06/18/1998 | WO1998026205A1 Pipe flange connection for pressure retaining, abrasive/corrosive service |
| 06/11/1998 | WO1998025071A1 Safety device for damping or preventing the movements of a broken section of a piping system |
| 06/04/1998 | DE19649923A1 Ausschlagsicherung zum Dämpfen oder Verhindern einer Bewegung eines abgebrochenen Teiles einer Leitung Whip restraint for attenuating or preventing movement of a broken part of a line |
| 06/02/1998 | US5758694 Helically wound reinforcing fiber that is bonded together with a thermoset polymer resin |
| 05/19/1998 | US5753863 Sealing arrangement having an outer housing and an inner hyperbolic tube for sealing the inlet area of a lengthwise extending sustrate |
| 05/13/1998 | EP0841388A1 Steel-pipe having a organic resin outer surface coating for improved hydroforming |
| 05/07/1998 | WO1998018619A1 Polyolefin-covered steel pipe possessing excellent resistances to thermally oxidative deterioration and weathering and process for manufacturing the same |
| 05/07/1998 | CA2220192A1 Lubricant surface-treated steel pipe for hydroforming use |
| 04/30/1998 | DE19644429A1 Sub=soil water pipe or drain protected by two-part plastic sheath |
| 04/29/1998 | CN2280191Y Corrosion-resistant joint for pipe with double layer of metals |
| 04/29/1998 | CN1180149A Protective non-heating shrink belt for jacketed pipeline joint |
| 04/14/1998 | US5738463 Placing hardenable material comprising aqueous rubber latex, a vulcanizing agent and an vulcanizing activator around the outside of conduit, hardening into an elastomeric solid mass |
| 04/07/1998 | US5735955 Apparatus for generating and dispersing foam herbicide within a sewer |
| 03/26/1998 | WO1998012465A1 Coating for the internal surface of a pipe, method for applying the same on said surface, two-layered semi-finished part using said coating and method for making this part |
| 03/18/1998 | EP0829513A2 Grouting subsurface conduits |
| 03/17/1998 | US5727599 Insulating sleeve for a fluid pipe |
| 02/25/1998 | EP0824648A2 Refractory tile for open-spaced boiler tubes |
| 02/17/1998 | US5718461 Pipe bend |
| 02/15/1998 | CA2213088A1 Elastomeric grouting of subsurface conduits |
| 02/10/1998 | US5716668 Method for the production of a silicone-based fireproof protection means |
| 01/29/1998 | DE19630039A1 Curved section of pipe transporting abrasive material |
| 01/27/1998 | US5712010 Protective insulation |
| 01/21/1998 | CN1170841A Bellows-type cover with integrated clamping member |
| 01/08/1998 | WO1998000666A1 A method and an arrangement for closing at least one end of a tube and a plug for said closing |
| 12/24/1997 | WO1997048940A1 Abrasion protection |
| 12/09/1997 | US5694978 For use in peritoneal dialysis |
| 11/27/1997 | DE19620954A1 Monitor for wear and tear in feeder tubes |
| 11/26/1997 | EP0809034A1 Bellows-type cover with integrated clamping member |
| 11/18/1997 | US5687772 Protective end cap |
| 11/11/1997 | US5685448 Explosion protection lid in lightweight construction, especially for pipelines |
| 11/05/1997 | CN2266683Y 管道渗漏保护器 Pipeline leakage protection |
| 10/30/1997 | WO1997040080A1 Process for the preparation of creep-resistant polypropylene block copolymers |
| 10/22/1997 | EP0672011B1 Lightweight explosion flap, in particular for pipelines |
| 10/02/1997 | DE19612887A1 Pipe bend for pipes feeding liquids or gases |
| 09/18/1997 | WO1997034351A1 Split corrugated sheath with a sound-proofing function |
| 09/17/1997 | CN2262642Y Cladded stranded wire, tubing and section |
| 09/17/1997 | CN1159851A Steel pipe joint having high galling resistance and surface treatment method thereof |
| 09/12/1997 | WO1997033117A1 Multilayer pipe |
| 09/12/1997 | WO1997033116A1 Multilayer pipe |
| 09/03/1997 | CN2261547Y Antiwear composite pipe material |
| 08/06/1997 | EP0676021B1 Device for securing pipes against fracture |
| 08/05/1997 | US5654104 Steel product covered with high-strength polyolefin |
| 07/30/1997 | EP0786616A1 Steel pipe joint having high galling resistance and surface treatment method thereof |
| 07/24/1997 | DE19601913C1 Shrouding material for pipes and cables |
| 07/17/1997 | DE19600812A1 Protective arrangement for elongated elements especially exhaust pipes |
| 07/10/1997 | WO1997019286A3 Pipe bend for feed pipes for feeding liquids or gases which may possibly be laden with solids |
| 06/18/1997 | CN2256501Y Protective sheet for pipe anti-corrosion belt |
| 06/11/1997 | EP0778088A2 Method and apparatus for molding lining in pipe |
| 06/07/1997 | CA2192034A1 Method and apparatus for molding lining in pipe |
| 06/04/1997 | EP0620873B1 Wraparound closure device |
| 06/03/1997 | US5634598 Abrasion resistant lined sweep nozzle |
| 06/03/1997 | US5634497 Hose for suction and discharge of ore slurry or any other abrasive material |
| 05/29/1997 | WO1997019286A2 Pipe bend for feed pipes for feeding liquids or gases which may possibly be laden with solids |
| 05/07/1997 | CN1149302A Curable polymeric composition and use in protecting a substrate |
| 05/07/1997 | CN1149115A Wearless powder blowing conveying pipes |