| Patents for F16L 57 - Protection of pipes or objects of similar shape against external or internal damage or wear (3,889) |
|---|
| 01/18/1990 | DE3823439A1 Protective element which is in the form of shells and is intended for pipes |
| 01/03/1990 | CN1038506A Lining laminate for pipeline and operation method thereof |
| 12/26/1989 | US4889318 Molded hopper tee |
| 12/21/1989 | DE3819902A1 Laminar material for fire barriers |
| 12/19/1989 | US4887848 Replaceable pipe liner assembly |
| 12/06/1989 | EP0345117A1 Duct for transporting by gravity granular or pulverulent products, especially at silo sites |
| 12/06/1989 | EP0344896A1 A lining laminate for a pipeline and an operation method thereof |
| 11/28/1989 | CA1263486A1 Compounded adhesive formulation and composite hose made with same |
| 11/09/1989 | DE3814034A1 Curved cast-iron pipe |
| 10/19/1989 | DE3909839A1 Pine-marten protection device |
| 10/17/1989 | CA1262337A1 Pipeline, method of pipeline laying, and a machine for laying the pipeline |
| 10/10/1989 | US4872424 Intake manifold with removable baffles |
| 10/04/1989 | EP0335154A1 Hose with a soft and elastic cover |
| 10/03/1989 | US4871599 Support helix for a radially expanded resilient sleeve |
| 10/03/1989 | US4871477 Alkali metal silicates; microexplodable particles, and retardant; self-extinguishing nondripping, low smoke; cushions |
| 09/28/1989 | DE3814035C1 Connection between a straight steel pipe and an arcuate cast pipe |
| 09/12/1989 | US4865893 Longitudinally divided sleeve tube for cable sleeves |
| 09/12/1989 | US4865353 Abrasion resistant ceramic elbow |
| 09/08/1989 | WO1989008214A1 Well tubing liner system |
| 09/05/1989 | US4862922 Abrasion resistant sleeve for flat substrates |
| 07/18/1989 | US4848409 Coupling guard |
| 07/18/1989 | US4848396 Cast hopper tee |
| 07/11/1989 | US4846512 Protective cylinder for pipe covering material |
| 07/04/1989 | US4844762 Process for continuously sheathing solid or hollow profiles with an extruded foam jacket of thermoplastic synthetic resin |
| 06/29/1989 | WO1989005939A1 Constructional element protected against gnawing by rodents, process for producing it, and coupling ring or coupling sleeve for use with a particularly rodent-proof constructional element |
| 06/13/1989 | US4838318 Elbow cover for an elbow in pipework |
| 06/13/1989 | US4838317 Hydraulically efficient ribbed pipe |
| 06/06/1989 | US4836080 Vibration abrasive resistant fabric covering |
| 05/16/1989 | US4830061 Plastics cover for piping |
| 04/26/1989 | CN1004001B Process for the preparation of novel crystalling form of benzothiazine dioxide salt |
| 03/22/1989 | CN1031812A Method and apparatus deforming reformable tubular pipe liners |
| 03/21/1989 | US4813225 Chain for use in device for preventing rupturing of a pipeline |
| 03/21/1989 | CA1251407A1 Crack stopping in pipelines |
| 03/13/1989 | EP0271487A4 Composite fire stop device. |
| 03/09/1989 | WO1989002050A1 Root-repelling pipe joints |
| 03/09/1989 | DE3728944A1 Socket-fracture prevention means (MBS) for buried threaded pipes of all sizes and for plastic-encased iron pipes |
| 03/07/1989 | US4809752 Thread protector for screw threads, made of a deformable material with a complementary thread |
| 02/14/1989 | US4804207 Connector pipe segment |
| 02/09/1989 | WO1989001253A1 Polymeric tape with biocide |
| 02/08/1989 | EP0302408A2 Plastic pipe assembly |
| 02/07/1989 | US4802509 Wraparound closure for conduit protection |
| 02/01/1989 | EP0301697A2 A method and apparatus for producing a deformed pipe liner of tubular cross-section. |
| 02/01/1989 | CN1030822A Protecting apparatus for tube end |
| 01/25/1989 | EP0300834A1 Hoses |
| 01/10/1989 | US4796670 Drill pipe protector |
| 01/10/1989 | US4796401 Composite fire stop device |
| 01/04/1989 | EP0297493A2 Protecting device for pipe ends |
| 01/03/1989 | CA1248156A1 Pipelock |
| 12/20/1988 | CA1247019A1 Hose with coextruded cover consisting of multiple foamed or nonfoamed layers |
| 11/22/1988 | US4785854 Method of coating metal pipe having bending capability |
| 11/17/1988 | EP0291203A2 Support helix for a radially expanded resilient sleeve |
| 09/27/1988 | US4773451 Double tubing comprising two protective tubes integrally joined to one another by a web |
| 09/08/1988 | DE3705968A1 Material for protection |
| 09/07/1988 | WO1988006557A1 Process and apparatus for protecting ends of oil field tubular products |
| 09/07/1988 | EP0281353A2 Method of, and elastomeric composition for protecting a substrate |
| 09/01/1988 | DE3805077A1 Device for reducing wear or the like |
| 08/30/1988 | US4766662 Method of protecting hose with a plastic abrasion-resistant protective sleeve |
| 08/24/1988 | CN88100632A Enclosure for plastic pipeline |
| 08/18/1988 | DE3718537C1 Process for producing a pipe or pipe bend |
| 08/03/1988 | CN88100321A Hood for pipe bending |
| 07/28/1988 | DE3801377A1 Covering for a pipe bend |
| 07/26/1988 | US4759390 Coated metal pipe having bending capability |
| 07/19/1988 | US4757595 Process for protecting ends of oil field tubular products |
| 07/05/1988 | US4754685 Abrasion resistant braided sleeve |
| 06/29/1988 | CN87101159A Protective sleeve for covering material for pipe |
| 06/22/1988 | EP0271487A1 Composite fire stop device |
| 06/15/1988 | EP0271239A1 Coated metal pipe having bending capability |
| 06/14/1988 | CA1237907A1 Rod coupling for oil well sucker rods and the like |
| 05/25/1988 | CN87203621U Auto-locking hose net connector |
| 04/27/1988 | CN87106022A Moist type wrapping cloth made from plastic coated glassfiber |
| 04/19/1988 | CA1235377A1 Device for preventing rupturing of a pipeline |
| 04/12/1988 | US4737210 Method of fabrication of high tensile strength removable hose covering |
| 03/29/1988 | US4733889 Wear resistant pipe |
| 03/22/1988 | US4732412 Coated recoverable articles |
| 03/16/1988 | EP0259373A1 Insulation and weight coating for subsea pipelines and method for production of the same. |
| 03/15/1988 | US4731259 Descaling process |
| 02/09/1988 | CA1232553A1 Lined pipe and a method of lining a pipe |
| 02/02/1988 | US4722367 Modular vortex spoiler system for pipelines |
| 01/19/1988 | US4719687 Method for sealing, pressure-testing, and transporting a multi-pipe segment |
| 12/16/1987 | EP0249590A1 Constituent part protected against biting rodents, its manufacturing process and ring or sleeve coupling to be used in conjunction with the rodent-safe constituent part |
| 12/16/1987 | EP0249333A1 Abrasion resistant braided sleeve |
| 12/15/1987 | US4713272 Longitudinally divided sleeve of shrinkable material |
| 12/08/1987 | US4711387 Method of producing pipes with crack arresters |
| 11/25/1987 | EP0246890A1 Conduit assembly |
| 11/10/1987 | US4705424 Stud system for securing abrasion resistant members |
| 11/10/1987 | US4705244 Tube protecting device |
| 10/28/1987 | EP0242860A1 Abrasion resistant pipe and method of producing the same |
| 10/20/1987 | US4700752 Clock spring crack arrestor |
| 10/07/1987 | EP0239741A1 Double pipe consisting out of two protection pipes connected to each other in one piece by a web |
| 10/07/1987 | CN87102248A Double tubing comprising two protective tubes integrally joined to one another by web |
| 09/30/1987 | EP0239241A1 Hydraulic support |
| 09/30/1987 | EP0238901A2 Metal pipe, in particular steel pipe, having an anticorrosive and a protective lining |
| 09/24/1987 | DE3608831A1 Use of melting chamber power station slag in coatings subjected to increased wear |
| 09/22/1987 | US4694863 Protective cap |
| 09/02/1987 | EP0234673A1 Protective cap |
| 08/25/1987 | CA1225915A1 Method of treating a pipe and product produced thereby |
| 08/13/1987 | WO1987004768A1 Insulation and weight coating for subsea pipelines and method for production of the same |
| 08/04/1987 | US4684155 Pipe elbow with abrasion resistant composite inner liner and method for forming |
| 07/30/1987 | DE3627065C1 Ceramic wear-protection plate |
| 07/28/1987 | US4682632 Crack stopping in pipelines |