| 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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| 05/01/1997 | WO1997015775A1 Fire resistant pipe |
| 05/01/1997 | CA2235367A1 Fire resistant pipe |
| 04/30/1997 | DE19540248A1 Gas regulating box with closable door |
| 04/30/1997 | CN1034758C Method for directly burying super-heat steam pipeline |
| 03/23/1997 | CA2186189A1 Pipe protector |
| 03/12/1997 | EP0762030A1 Device for thrusting a plastic pipe for the interior lining of metal piping to be renovated |
| 02/25/1997 | US5605174 Device for conveying thick substances containing a great deal of solid material |
| 01/30/1997 | WO1997002945A1 Sandwich structure |
| 01/30/1997 | CA2226383A1 Sandwich structure |
| 01/07/1997 | US5591940 Protective sleeve |
| 12/27/1996 | EP0749449A1 Curable polymeric composition and use in protecting a substrate |
| 12/18/1996 | EP0748934A2 A pipe assembly |
| 11/27/1996 | EP0743915A1 A method and an arrangement for closing of at least one end of a tube and a plug for said closing |
| 11/27/1996 | CA2150318A1 Tire guard for garden hoses |
| 11/26/1996 | US5577864 Apparatus relating to the linings of pipelines and passageways |
| 11/05/1996 | US5571625 Method for the production of a silicone-based fireproof protection means and protection means thus obtained |
| 10/22/1996 | US5566986 Apparatus for containing a fluid |
| 10/22/1996 | US5566722 Self locking slitted corrugated tubing |
| 10/09/1996 | EP0707666A4 Corrosion inhibitor and sealable thread protector end cap |
| 09/25/1996 | CN1132005A Sealing member |
| 09/24/1996 | US5558045 Refractory tile for open-spaced boiler tubes |
| 09/10/1996 | CA2038296C External pipe protector |
| 09/03/1996 | CA2100608C Jacket reinforcement for piping |
| 08/22/1996 | CA2168800A1 Hose for suction and discharge of ore slurry or any other abrasive material |
| 08/07/1996 | EP0724788A1 Cable sleeve |
| 07/25/1996 | DE19500953C1 Arcuate section of tube for fitting in piping for hydraulic or pneumatic conveying of solid materials |
| 07/23/1996 | US5538043 Method and apparatus for preventing pipe damage |
| 07/16/1996 | CA2111177C Method and apparatus for protecting a hose |
| 06/26/1996 | CN2230006Y Wearing-proof bend of wind powder pipe |
| 06/18/1996 | US5527070 Damage protection for in-ground pipe founded in expansive soils |
| 06/12/1996 | EP0715864A2 Closure device of a medical conduit, for instance of a catheter |
| 06/12/1996 | EP0715775A1 Sealing member |
| 06/06/1996 | WO1996009493A3 Refractory tile for open-spaced boiler tubes |
| 05/29/1996 | CN1123382A Hard-face welding-patching curved pipe and producing method thereof |
| 05/28/1996 | US5520420 Protective cap for a releasable quick-action closure coupling |
| 04/29/1996 | CA2161561A1 Protective end cap |
| 04/24/1996 | EP0707666A1 Corrosion inhibitor and sealable thread protector end cap |
| 04/24/1996 | EP0575333B1 Heat shrinkable wraparound articles for covering elongate objects |
| 04/11/1996 | WO1996010710A1 Steel pipe joint having high galling resistance and surface treatment method thereof |
| 03/28/1996 | WO1996009493A2 Refractory tile for open-spaced boiler tubes |
| 03/20/1996 | CN2222582Y Duct protector |
| 03/14/1996 | WO1996007530A1 Joiner and liner strip |
| 03/06/1996 | CN2221702Y Chucking thermal shrinkage casing |
| 03/06/1996 | CN2221700Y Permanent-magnet rubber-lined wear-resisting elbow |
| 03/01/1996 | CA2155904A1 Method for applying polymer modified asphalt coating to corrugated pipes |
| 02/13/1996 | US5490964 Method and device for repairing a tubular conduit |
| 02/13/1996 | US5490742 Modular protective pipeline cover |
| 01/24/1996 | CN1115570A Lightweight explosion flap, in particular for pipelines |
| 01/23/1996 | US5486332 Method for everting a tubular liner bag |
| 01/04/1996 | DE19522540A1 Pipe unit in concrete delivery line |
| 12/20/1995 | EP0687849A1 Method of limiting fast crack propagation in plastic pipes and pipes obtained by such method |
| 12/19/1995 | US5476343 Offshore pipeline insulated with a cementitious coating |
| 12/12/1995 | US5474823 Pipe liner bag, manufacturing method therefor and pipe repair method |
| 12/06/1995 | EP0633863B1 Device for conveying thick substances containing a great deal of solid material |
| 11/29/1995 | CN1112658A The device of protecting tubes and pipes and the structure of the same |
| 11/07/1995 | CA2052987C Method for reinforcing and repairing equipment details and components subjected to heavy abrational wear |
| 10/24/1995 | US5460894 Support arm |
| 10/24/1995 | US5460852 Method for applying polymer modified asphalt coating to corrugated pipes |
| 10/11/1995 | EP0676021A1 Device for securing pipes against fracture. |
| 10/03/1995 | US5454402 Hydraulically efficient ribbed pipe having openings |
| 09/26/1995 | US5452749 Corrosion inhibitor and sealable thread protector end cap for tubular goods |
| 09/20/1995 | EP0672011A1 Lightweight explosion flap, in particular for pipelines. |
| 09/14/1995 | WO1995024433A1 Curable polymeric composition and use in protecting a substrate |
| 09/14/1995 | CA2185150A1 Curable polymeric composition and use in protecting a substrate |
| 09/12/1995 | CA2085635C Thin wall pipe for abrasive materials flowing under high pressure and method of fabricating the pipe |
| 08/17/1995 | WO1995021777A1 A method and an arrangement for closing of at least one end of a tube and a plug for said closing |
| 08/09/1995 | CN2204908Y Composite wearproof bent pipe |
| 08/01/1995 | US5437309 Lockable well cap |
| 07/12/1995 | EP0521041B1 Pipeline and passageway lining materials |
| 07/05/1995 | EP0661490A1 Hose with protector |
| 06/28/1995 | EP0660022A1 Protection cap for a releasable quick acting coupling |
| 06/28/1995 | EP0660020A1 Manufacturing process for a fire protection on the base of silicone and fire protection |
| 06/28/1995 | CN1029153C Wear-resistant and corrosion-resistant composite steel pipe and its production method |
| 06/27/1995 | US5427417 Protective cover for use with drain pipes |
| 06/13/1995 | US5423352 Remote-controlled insertion of sheathing in inaccessible manifolds and junctions |
| 06/07/1995 | EP0656256A1 High-strength polyolefin-coated steel material |
| 05/24/1995 | CN1028559C Wearing-proof compound tube and its manufacture method |
| 05/03/1995 | CN2196226Y Detectable protection net for plastic pipe system |
| 04/27/1995 | WO1995011542A1 Cable sleeve |
| 04/27/1995 | CA2172810A1 Cable sleeve |
| 04/26/1995 | CN1101968A Method for directly burying superheat steam pipeline |
| 04/20/1995 | WO1995010465A1 Lightweight explosion flap, in particular for pipelines |
| 04/11/1995 | US5405171 For containing a hard-to-handle fluid |
| 03/16/1995 | DE4331124A1 Supporting arm |
| 03/15/1995 | CN2191957Y High temp. steam direct-flush type compound thermal insulating pipe |
| 03/14/1995 | US5397615 Heat shrinkable wraparound articles for covering elongate objects |
| 03/08/1995 | EP0641422A1 Rupture inhibiting fluid transition |
| 03/02/1995 | WO1995006347A1 Sealing member |
| 03/02/1995 | CA2169926A1 Sealing member |
| 02/14/1995 | US5388929 Method of renovating and/or protecting sewers or pipes |
| 02/14/1995 | US5388317 Method for reinforcing and repairing equipment parts and components subjected to heavy abrasive wear |
| 02/07/1995 | CA1334297C Well tubing liner system |
| 01/24/1995 | US5383994 Method for making a double wall fire proof duct |
| 01/11/1995 | EP0633419A1 Ground laid pipe |
| 01/11/1995 | EP0633126A1 Method of protecting a pipe end |
| 01/10/1995 | US5380128 Methods of, coatings and linings for water intake system components and other equipment exposed to a marine environment |
| 01/05/1995 | WO1995000679A1 Corrosion inhibitor and sealable thread protector end cap |
| 01/05/1995 | WO1995000328A1 High-strength polyolefin-coated steel material |
| 01/05/1995 | CA2142983A1 Steel product covered with high-strength polyolefin |
| 12/27/1994 | US5375626 Method of and lining for water intake pipes |