| 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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| 07/22/1987 | EP0229463A2 Compounded adhesive formulation and compositive hose made with the same |
| 07/14/1987 | US4679824 Fluid-tight coupling for two sections of a fluid line |
| 07/14/1987 | US4679600 High tensile strength removable hose covering |
| 06/30/1987 | US4676276 Preventing ductile fracture propagation; glass fibers in curable matrix |
| 06/23/1987 | US4675221 Fire sleeve for hose |
| 05/26/1987 | US4667733 Protective device for heat exchangers placed in a duct for smoke filled with fine particles of ash |
| 04/16/1987 | DE3536362A1 Elastic protective body for tubes |
| 03/31/1987 | US4653777 Articulate bent pipe for transportation of powder and slurry in dry or wet state |
| 03/24/1987 | US4652475 Thermoplastic-elastomer bonding |
| 03/24/1987 | US4652020 Pipework |
| 03/19/1987 | DE3532983A1 Structural part for ventilating lines |
| 03/04/1987 | EP0212003A1 Protective device for heat exchangers placed in fine ash particles-laden smoke duct |
| 02/24/1987 | US4644977 Stain resistance, wear resistance |
| 02/24/1987 | US4644975 Device for preventing rupturing of a pipeline |
| 02/17/1987 | CA1218005A1 Coated recoverable articles |
| 02/12/1987 | WO1987000761A1 Composite fire stop device |
| 02/10/1987 | US4641864 Wear resistant pipe bend for slurry transport |
| 02/10/1987 | US4641450 Tube having strain-hardened inside coating |
| 01/22/1987 | DE3524757A1 Conveying pipe |
| 01/13/1987 | US4635968 Method and apparatus for protecting consecutive multiple variable diameter couplings |
| 01/06/1987 | US4633913 Wear-resistant pipe |
| 12/31/1986 | CN85104756A Anti-erosion protrusions for wear surfaces in fluid conduits |
| 12/03/1986 | EP0203497A2 Longitudinally split tubular envelope, particularly a cable sleeve, of shrinkable material |
| 12/02/1986 | CA1214733A1 Coated pipe having bending capability |
| 11/25/1986 | US4624486 Structure at resin pipe connections |
| 11/11/1986 | US4621953 Anti-erosion protrusions for wear surfaces in fluid conduits |
| 10/21/1986 | US4617822 Tell-tale wear monitor for pipes having wear resistant inner linings |
| 10/15/1986 | CN86102564A Flexible blanket |
| 10/08/1986 | EP0196557A1 Fluid-tight coupling device for two sections of a conduit |
| 09/23/1986 | US4613165 Increased tensile strength variable diameter protective joint |
| 09/16/1986 | US4612239 Lamination, heat insulation |
| 09/16/1986 | US4611656 For use in producing oil, gas and other fluids from subterranean formations |
| 09/16/1986 | US4611635 Coated pipe having bending capability |
| 09/03/1986 | EP0193034A1 An articulate bent pipe for transportation of powder and slurry in dry or wet state |
| 09/03/1986 | EP0080508B1 Short radius, low wear elbow |
| 09/03/1986 | CN85108245A Process for the preparation of novel crystalline form of benzothiazine dioxide salt |
| 08/20/1986 | EP0191069A1 Method for inhibiting the wear of surfaces of equipment for the treatment of mixtures in water or in humid air |
| 08/19/1986 | US4606556 For use in transporting fluent material |
| 08/12/1986 | CA1209572A1 Crystalline form of benzothiazine dioxide salt |
| 08/12/1986 | CA1209495A1 Apparatus and method for arresting ductile fracture propagation |
| 08/06/1986 | EP0189412A1 Descaling process |
| 07/29/1986 | US4602807 Rod coupling for oil well sucker rods and the like |
| 06/18/1986 | EP0184980A2 Method for lining steel pipes with a mechanical protecting layer |
| 06/17/1986 | US4595319 Pneumatic conveying system elbow |
| 06/17/1986 | CA1206130A1 Valve body with powdered metal lining and method for making the same |
| 05/28/1986 | EP0182572A1 Novel crystalline form of benzothiazine dioxide salt |
| 04/29/1986 | US4585036 Distribution elements placed between bindings and the bodies bound thereby |
| 04/16/1986 | EP0178248A2 Steel pipe as a crack stopper for gas main |
| 04/15/1986 | US4582831 Antiarthritic agents |
| 02/27/1986 | WO1986001277A1 Method for inhibiting the wear of surfaces of equipment for the treatment of mixtures in water or in humid air |
| 02/25/1986 | US4572548 Pipelock |
| 01/14/1986 | US4564319 Flexible tube for conveying a mixture of a liquid and a solid material |
| 12/24/1985 | US4559974 Wrapping with band containing high strength fibers in resin, and curing |
| 11/26/1985 | US4554721 Method of manufacturing a wear resistant pipe |
| 11/05/1985 | CA1196298A1 Flange protector |
| 10/15/1985 | CA1195265A1 Wraparound device |
| 10/02/1985 | EP0156550A2 Improvements in or relating to pipework |
| 09/04/1985 | EP0153816A2 Coated pipe having bending capability |
| 08/27/1985 | US4537224 Rubber tube for dredging work |
| 08/27/1985 | US4537223 Rubber tube for dredging work |
| 08/21/1985 | EP0151670A2 Pipe break prevention device |
| 07/18/1985 | WO1985003114A1 Method for making a failure-resistant damper |
| 07/02/1985 | US4526208 Tile-lined pipe with subdivided tiles therein and methods of production thereof |
| 05/09/1985 | WO1985002002A1 Descaling process |
| 04/24/1985 | EP0138742A2 Process to produce a mechanical protective layer for steel pipes |
| 04/09/1985 | US4509559 Heat reflective layer, intumescent layer, and endothermal layer |
| 03/26/1985 | US4506865 For installation in a pipeline |
| 02/05/1985 | CA1182183A1 Device for improving the resistance and the stiffness of a subsea conduit |
| 01/23/1985 | EP0132219A1 Anti-corrosively coated pipe with a mechanical insulating layer |
| 01/15/1985 | US4493864 Coated pipe and method of making same |
| 01/08/1985 | CA1180668A1 Metallic protector for threaded drill pipe ends |
| 12/19/1984 | EP0128575A2 Protector for the end of a tube provided with internal or external screw threads, and device for making such a protector |
| 11/27/1984 | US4484969 Method of winding tile-lined piped with subdivided tiles therein |
| 11/27/1984 | US4484770 Tubing and fittings with cast-in-place liners |
| 11/07/1984 | EP0124447A2 Bearing pads placed under bindings, and bodies bound thereby |
| 11/06/1984 | CA1177418A1 Wrap-around device |
| 11/06/1984 | CA1177416A1 Apparatus for pipe protection |
| 10/30/1984 | US4479743 Wear resistant insert for particulate material flow ducts |
| 10/24/1984 | EP0122382A1 Erosion resistant elbow for solids conveyance |
| 10/23/1984 | US4478253 Erosion resistant elbow for solids conveyance |
| 10/23/1984 | US4478252 Device for enclosing objects |
| 10/02/1984 | US4474217 Hose structure |
| 09/05/1984 | EP0117331A2 Lance pipe |
| 09/04/1984 | US4469468 Apparatus for jumping a moving object from one place to another and a method of using it |
| 08/29/1984 | EP0117057A2 Abrasion resistant sleeve |
| 07/24/1984 | US4461498 Coupling members for pipeline assemblies |
| 07/24/1984 | US4461324 Rubber hose |
| 07/17/1984 | US4460140 Fluid applicator |
| 07/10/1984 | US4458404 Method of making sleeved drill pipe |
| 06/27/1984 | EP0111589A1 Elbow element |
| 06/26/1984 | CA1169790A1 Stabilized sleeve arrestor |
| 06/05/1984 | US4452279 Silicone/elastomer fiberglass sleeves |
| 06/05/1984 | CA1168599A1 Crack arresting device for limiting propagation of cracks in welded structures fabricated from sheets |
| 05/22/1984 | US4449852 Coverings of fiber-reinforced resin encapsulated by a polymer-concrete; underwater pipes |
| 05/08/1984 | US4447076 Conduit assembly |
| 04/25/1984 | EP0106424A1 Valve body and method of producing same |
| 03/27/1984 | CA1164369A1 Short radius, low wear elbow |
| 03/13/1984 | US4436118 Sleeved drill pipe |
| 02/22/1984 | EP0101289A2 Flange protector |
| 02/14/1984 | CA1162265A1 Heat recoverable connector |