Patents for F16L 58 - Protection of pipes or pipe fittings against corrosion or incrustation (5,790) |
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01/26/2000 | CN1048796C Technology for external corrosion-proof of pipeline |
01/19/2000 | EP0874698A4 Method of preventing corrosion in concrete pipe |
01/19/2000 | CN1241594A Articles of functional fluoropolymer |
01/12/2000 | EP0667942B1 Means of coupling of non-threaded connections |
01/12/2000 | CN1241252A Product for coating internal surface of conduit, method and machine using same and conduit coated with same |
01/04/2000 | US6009913 Lubricant surface-treated steel pipe for hydroforming use |
01/04/2000 | US6009912 Steel pipe with integrally formed liner and method of fabricating the same |
12/28/1999 | US6006788 Flexible pipe with internal gasproof undulating metal tube |
12/23/1999 | WO1999065996A1 Fine-grain mixture for applying an anti-corrosion coating on the inner surfaces of pipes |
12/21/1999 | US6003562 Extruded multiple plastic layer coating bonded to a metal tube and process for making the same |
12/14/1999 | US6001301 Method of molding a lamina into a protective member |
12/09/1999 | DE19822301C1 Verfahren und Vorrichtung zum Aufbringen einer Kunststoffschicht auf die Innenflächen von Hohlkörpern Method and apparatus for applying a plastic layer on the inner surfaces of hollow bodies |
11/30/1999 | US5992897 Joining lined pipe items |
11/25/1999 | WO1999059730A1 Method and device for applying a plastic layer to the inner surfaces of hollow bodies |
11/23/1999 | US5988691 Fluid pipelines |
11/18/1999 | WO1999058326A1 Laminate |
11/16/1999 | US5984370 Corrosion barrier with antibacterial protection for pipe connections |
11/11/1999 | WO1999049171A3 Threaded assembly of metal tubes designed to contain a corrosive fluid |
11/11/1999 | WO1999043974A9 Threaded connection for internally clad pipe |
11/10/1999 | EP0897509B1 Coating and process for coating pipelines |
11/04/1999 | WO1999056055A1 Pipe corrosion protection |
10/28/1999 | WO1999054654A1 Flexible protective sleeve |
10/28/1999 | CA2328093A1 Flexible protective sleeve |
10/27/1999 | CN2345831Y Anti-pollution water-delivering pipe |
10/26/1999 | US5972450 Coated metal tubing arrangement comprising inner layer of first polymeric material bonded to the tube to provide corrosion protection and outer layer of second polymeric material to absorb impact energies and to eliminate mechanical |
10/26/1999 | US5971441 Metal sleeve having a water-swelling blend of synthetic rubber and a water aborbing polymer coating the outer circumference of the sleeve; no leakage due to damage to rubber or sleeve |
10/26/1999 | US5971440 Pipe assembly |
10/26/1999 | US5971031 Branch pipe liner bag and pipe lining method |
10/21/1999 | WO1999053232A1 Screw joint for oil well piping |
10/20/1999 | CN1232150A Corrosionproof pipe and its mfg. technology |
10/13/1999 | EP0948561A1 Polypropylene compositions with a high content of heavy mineral fillers suited for coating metal pipes |
09/30/1999 | WO1999049259A1 Composite carbon fibre based armour for flexible pipe |
09/30/1999 | WO1999049171A2 Threaded assembly of metal tubes designed to contain a corrosive fluid |
09/29/1999 | EP0945665A1 Tube, in particular wrapped tube |
09/29/1999 | CN2341004Y Corrosionproof dielectric joint for pipeline |
09/22/1999 | EP0943067A1 Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same |
09/22/1999 | EP0721382B1 Method, device and apparatus for coating a tube, particularly a pipeline tube |
09/21/1999 | US5955162 Calcium alumina cement lined pipe |
09/21/1999 | CA2160134C Plumbing fixture carrying drinking water comprised of a copper alloy |
09/16/1999 | WO1999046534A1 A sheath |
09/14/1999 | US5950681 Method of renovating pipes |
09/07/1999 | US5948218 Corrosion protection system |
09/07/1999 | US5947528 Pipe flange assembly |
09/07/1999 | CA2144199C Calcium alumina cement lined pipe |
09/02/1999 | WO1999043974A1 Threaded connection for internally clad pipe |
09/01/1999 | EP0938964A2 Branch pipe liner bag and branch pipe lining method |
08/24/1999 | US5941662 Method and apparatus for protecting a flange |
08/24/1999 | US5940952 Method for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes |
08/18/1999 | EP0936235A1 New coating for pipelines, tanks and structural steelwork |
08/05/1999 | DE19841891A1 In-situ refurbishment of steel pipes supplying gas, water or oil |
08/04/1999 | CN1044453C Method for producing scaly glass fibre reinforced plastic tube |
08/03/1999 | US5932306 Corrosion-and-chipping-resistant resin coating structure for stainless steel pipes |
07/28/1999 | EP0931639A2 Pipe lining method |
07/27/1999 | US5926936 Method for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes |
07/27/1999 | CA2260464A1 Pipe lining method |
07/21/1999 | EP0698191A4 Plumbing fixture carrying drinking water comprised of a copper alloy |
07/20/1999 | US5924913 Process for renovating pipes |
07/15/1999 | WO1999035434A1 Method of protecting articles |
07/14/1999 | CN2328844Y Wear resistance corrosion resistance pipe |
07/08/1999 | WO1999034032A1 Corrosion protected treatment device |
07/07/1999 | CN1221864A Compound structural lining for repairing on-line pipeline and its pressure coating tech. |
06/30/1999 | CN1043920C Antiseptic job method for long distance metal pipeline liner plastic film tube |
06/16/1999 | EP0680581B1 Heat-recoverable article |
06/16/1999 | CN2324371Y Corrosion proof device for sea water pipeline |
06/02/1999 | CN2322022Y Light type cathode protective instrument |
06/02/1999 | CN1218162A Manufacture of steel pipe with polyethylene coating |
05/27/1999 | WO1999025899A1 A corrosion-protected metal construction, e.g. in the form of a pipeline includable in a larger pipe system |
05/25/1999 | US5906400 Galvanic corrosion protection system |
05/25/1999 | US5906399 Threaded joint for metal tubes with internal coating |
05/19/1999 | EP0646060B1 Laminate |
05/19/1999 | CN2319195Y Corrosion-proof treatment device for inner wall of steel pipe |
05/19/1999 | CN1216811A Indoor gas pipeline repairing and reinforcement method |
05/12/1999 | CN1216350A Particle-reinforced aluminum-base wear-resisting pipe and its production |
05/11/1999 | CA2070375C Apparatus for everting a tube and method of using same |
05/06/1999 | WO1999021916A1 Polypropylene compositions with a high content of heavy mineral fillers suited for coating metal pipes |
05/06/1999 | EP0913622A2 Pipe coupling |
05/06/1999 | EP0913501A1 Process for repairing a tube by applying a lining and use of the process |
05/05/1999 | CN2317385Y Protective pipe |
04/28/1999 | EP0910482A1 Process for repairing plastic coatings of metal pipes |
04/27/1999 | US5896896 Method of transporting a fluid in a pipeline having a porous structure |
04/27/1999 | US5896894 Elongated tubular housing for monitoring systems |
04/22/1999 | WO1999019660A1 Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same |
04/21/1999 | EP0686246B1 Piping element for burried conduit, corresponding burried conduit, and method for manufacturing said piping element |
04/21/1999 | EP0660907B1 Tubular assembly and method of making same |
04/21/1999 | CN1214376A Method for preventing contamination by lead from metallic piping devices |
04/14/1999 | EP0908661A2 Branch pipe liner bag and pipe lining method |
04/14/1999 | CN2314219Y Steel-plastic composite pipe with expansion damping structure |
04/14/1999 | CN2314218Y Lining for pipe |
04/14/1999 | CN2314217Y Corrosionproof pipe for conveying liquid |
04/08/1999 | WO1999017049A1 Method for protecting the inner surface of a duct using a polymeric material |
04/06/1999 | CA2249632A1 Branch pipe liner bag and pipe lining method |
03/31/1999 | CN1212751A Method for lining underground pipelines |
03/30/1999 | US5888339 Applicator apparatus for wrapping a joint of pipe with a web of concrete material |
03/30/1999 | US5888331 Joining bodies of thermoplastic material |
03/30/1999 | CA2089766C Epoxy/polyolefin coating process |
03/24/1999 | CN1211701A Stainless steel internally lined water pipe |
03/23/1999 | US5885029 Antifouling wall structure, method of constructing antifouling wall and antifouling wall panel transporter therefor |
03/17/1999 | CN2310917Y Low-temp. cured epoxy resin paint corrosion-resistant cloth |
03/04/1999 | DE19747100A1 Treating cement mortar lining of water pipeline pipes and components |
03/03/1999 | EP0899253A1 A method of treating the cementitious coating of water-conduits made of steel or cast iron |