Patents for F16L 58 - Protection of pipes or pipe fittings against corrosion or incrustation (5,790)
11/1994
11/09/1994CN2182320Y Hose turnover apparatus for pipe lining use
11/08/1994US5362921 Flexible subsea line
11/04/1994CA2121711A1 Reinforced lining hose
10/1994
10/27/1994WO1994023845A1 Process for coating the internal surface of hydrothermosanitary pipes, particularly made of aluminium, with resinous products and pipes obtained therewith
10/27/1994CA2136964A1 Process for coating the internal surface of hydrothermosanitary pipes, particularly made of aluminum, with resinous products and pipes obtained therewith
10/26/1994EP0620836A1 Deteriorated structure repair method and substratum for restoring and lining corroded structure
10/26/1994CN2180855Y Corrosion-resistant bellows
10/25/1994US5358589 Preventing fouling by bonding metal gauze of beryllium-copper alloy to insulator layer formed on surface
10/25/1994CA2025252C Continuous nonshielding strip protective wrapping for buried pipe
10/19/1994CN1093785A Pipe construction
10/18/1994US5356679 Pipe surface coating with conversion and thermosetting resin layer, and process for the coating application
10/18/1994US5356665 Method of manufacturing a pipe coated with a resin layer on the inner surface thereof
10/18/1994US5356502 Method for lining a branch pipe
10/13/1994WO1994022661A1 Joining bodies of thermoplastic material
10/13/1994WO1994022598A1 Three-coat coating system for metal pipes and method of coating the outside of a metal pipe with a three-coat coating of this kind
10/13/1994CA2158657A1 Three-layer metal pipe coating composition and process for the exterior coating of metal pipes by a three-layer method
10/13/1994CA2136223A1 Joining bodies of thermoplastic material
09/1994
09/28/1994EP0617220A1 Coupled pipe assembly having a tapered interior sleeve
09/28/1994EP0616671A1 Composite metal tube and method of making the same
09/28/1994EP0537239B1 Method and installation for fitting an inner tube in an existing pipeline
09/28/1994CN1092851A Lining tube for pipeline
09/21/1994EP0615596A1 Improvements relating to pipeline insulation and anticorrosion protection.
09/21/1994CN1092512A Lining cable for pipe lining
09/20/1994US5348801 Tape for reinforcing pressure-supporting hollow bodies and a method for repairing deteriorated pipes
09/20/1994US5348211 Joining of metallic pipe lined with thermoplastic polymer
09/14/1994CN2177152Y Temperature difference pipe anti-corrosion instrument
09/13/1994US5346261 Coupled pipe assembly having a tapered interior sleeve
09/07/1994EP0489891B1 Process for sealing and renovating the inside of systems of laid ducts
09/01/1994WO1994019641A1 Heat insulated pipe system, method of laying the pipes, and means for joining the pipes
09/01/1994WO1994019640A1 Piping element for burried conduit, corresponding burried conduit, and method for protecting said piping element
08/1994
08/24/1994EP0611915A1 A method of providing a protective cover to an elongate substrate
08/23/1994US5340524 Variable angular insertion method for lining tubular members
08/23/1994US5339867 Composite metal tube and method of making the same
08/18/1994WO1994018418A1 Lined manhole assembly and liner
08/18/1994CA2155838A1 Lined manhole assembly and liner
08/17/1994EP0610620A1 A method for lining a branch pipe
08/17/1994EP0610437A1 Improvements relating to the lining of pipelines and passageways
08/17/1994EP0610349A1 Heat shrinkable sleeve for connecting a pipe and cable.
08/17/1994EP0550591B1 A method of protecting materials against corrosion as well as an apparatus for carrying out the method
08/10/1994EP0610142A1 Magnetic device for the treatment of calcium bicarbonate containing water in conduits
08/09/1994US5335841 Method of manufacturing welded pipe with excellent corrosion-resistant inner surface
08/04/1994WO1994017324A1 Heat-recoverable article
08/04/1994CA2154271A1 Heat-recoverable article
08/03/1994EP0608421A1 Metallic material excellent in resistance to chemical solution and chemical solution treating device or parts thereof using said material
08/02/1994US5333913 Galvanic isolation device
07/1994
07/20/1994EP0606209A1 Covering for pipelines
07/13/1994CN1089341A Oil pipe with nickel-phosphorus alloy anti-corrosion coating and its producing method
07/05/1994US5326400 Plug member for use in coating an interior surface of a pipe
06/1994
06/23/1994WO1994013992A1 Pipe construction
06/22/1994CN2169762Y Pipe connector and its anti-corrosion lining device
06/21/1994US5322656 Method and apparatus for coating the outer surface of an elongated body with a layer of concrete
06/16/1994DE4244741A1 Assembly device for protective sleeve in water pipe - has spindle in axial setting rod with guide sleeve at centre bore box with protective sleeve on sleeve ends
06/15/1994CN2169022Y Pipe against corrosion
06/14/1994US5320388 Well tubing liner system
06/09/1994WO1994012828A1 Flangeless pipe joint
06/09/1994CA2146254A1 Flangeless pipe joint
06/08/1994EP0600842A2 Method for applying a protective coating on carbon steel pipes
06/08/1994CN2168154Y Weld anti-flushed prolonging pipe
06/08/1994CN2168148Y Anti-septic pipeline structure member for transportion of gas or liquid
06/08/1994CN1024944C Material for pipe antiseptic liner
05/1994
05/31/1994US5317610 Prevent reduction in wall thickness
05/31/1994US5316606 Polyethylene, acrylic acid-ethylene copolymer
05/26/1994WO1994011664A1 Corrosion resistant connection for use with tubular members
05/26/1994WO1994010408A3 Deteriorated structure repair method and substratum for restoring and lining corroded structure
05/26/1994CA2148498A1 Corrosion resistant connection for use with tubular members
05/17/1994US5312026 Welded tube with excellent corrosion-resistant inner surface and method of producing the same
05/11/1994WO1994010497A1 Multilayer fire protective coating
05/11/1994WO1994010408A2 Deteriorated structure repair method and substratum for restoring and lining corroded structure
05/11/1994EP0595962A1 Corrosion protection system.
04/1994
04/28/1994WO1994009306A1 Protective sheet for pipe element and corresponding pipe element comprising a protective layer
04/28/1994WO1994008728A1 Apparatus for coating the inner side of tubing with protective material
04/19/1994US5303743 Thread protection system
04/19/1994US5303518 Lined manhole assembly and liner
04/13/1994CN2161805Y Assemble/disassemble pipeline insulated antiseptic cover
04/13/1994CN1085265A Bellows used in expansion joint and flexible metal tubing
04/06/1994EP0590344A2 Method for treating the interior surface of a pipe or a tube
04/05/1994US5300356 Wrapping
03/1994
03/31/1994WO1994007077A1 Means of coupling of non-threaded connections
03/31/1994WO1994007076A1 Tubular assembly and method of making same
03/31/1994CA2143215A1 Tubular assembly and method of making same
03/31/1994CA2143213A1 Means of coupling of non-threaded connections
03/30/1994EP0589800A1 Plastic lined dual containment piping system
03/29/1994US5298299 Double wall fire proof duct
03/29/1994US5297587 Sealed double wall steel tubing having steel outer surface
03/17/1994WO1994005499A1 High tensile strength composite reinforcing bands and methods for making same
03/15/1994US5294396 Polyurethane
03/15/1994CA1327758C Vent collar for plastic lined pipe
03/08/1994CA1327508C Composite, corrosion-resistant article comprising a metal substrate, a refractory metal layer on said substrate and a sulfide coating on said layer
03/03/1994WO1994004349A1 Flexible protective membrane particularly useful for waterproofing and protecting reinforced concrete bodies and metal pipes
03/03/1994CA2143121A1 Flexible protective membrane particularly useful for waterproofing and protecting reinforced concrete bodies and metal pipes
03/02/1994CN2157866Y Polytetrafluorethylene-metal compound compensator
02/1994
02/23/1994CN2157387Y Strong sound radiation antiscaling instrument
02/23/1994CN1023868C Reinforced adhesive band made of plastics-coated glass fibre and its production
02/16/1994CN2156014Y Tight lining teflon products
02/09/1994CN1081750A Galvanized steel pipe with coating at internal and external of it and processing method thereof
02/03/1994DE4319433A1 Field gap seal for pipelines in concrete jacket - involves plastics strips, surrounding pipeline, wound in gap.
02/01/1994US5282652 Lined pipe joint and seal
01/1994
01/26/1994EP0579788A1 Ablating gelatin pig and method for use in tubulars
01/26/1994CN2154393Y Anti-etch technology device for internal wall of mineral tube
01/19/1994EP0579249A2 Process for repairing plastic coatings on metal pipes
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