Patents for F16L 58 - Protection of pipes or pipe fittings against corrosion or incrustation (5,790)
01/2000
01/26/2000CN1048796C Technology for external corrosion-proof of pipeline
01/19/2000EP0874698A4 Method of preventing corrosion in concrete pipe
01/19/2000CN1241594A Articles of functional fluoropolymer
01/12/2000EP0667942B1 Means of coupling of non-threaded connections
01/12/2000CN1241252A Product for coating internal surface of conduit, method and machine using same and conduit coated with same
01/04/2000US6009913 Lubricant surface-treated steel pipe for hydroforming use
01/04/2000US6009912 Steel pipe with integrally formed liner and method of fabricating the same
12/1999
12/28/1999US6006788 Flexible pipe with internal gasproof undulating metal tube
12/23/1999WO1999065996A1 Fine-grain mixture for applying an anti-corrosion coating on the inner surfaces of pipes
12/21/1999US6003562 Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
12/14/1999US6001301 Method of molding a lamina into a protective member
12/09/1999DE19822301C1 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
11/1999
11/30/1999US5992897 Joining lined pipe items
11/25/1999WO1999059730A1 Method and device for applying a plastic layer to the inner surfaces of hollow bodies
11/23/1999US5988691 Fluid pipelines
11/18/1999WO1999058326A1 Laminate
11/16/1999US5984370 Corrosion barrier with antibacterial protection for pipe connections
11/11/1999WO1999049171A3 Threaded assembly of metal tubes designed to contain a corrosive fluid
11/11/1999WO1999043974A9 Threaded connection for internally clad pipe
11/10/1999EP0897509B1 Coating and process for coating pipelines
11/04/1999WO1999056055A1 Pipe corrosion protection
10/1999
10/28/1999WO1999054654A1 Flexible protective sleeve
10/28/1999CA2328093A1 Flexible protective sleeve
10/27/1999CN2345831Y Anti-pollution water-delivering pipe
10/26/1999US5972450 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
10/26/1999US5971441 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
10/26/1999US5971440 Pipe assembly
10/26/1999US5971031 Branch pipe liner bag and pipe lining method
10/21/1999WO1999053232A1 Screw joint for oil well piping
10/20/1999CN1232150A Corrosionproof pipe and its mfg. technology
10/13/1999EP0948561A1 Polypropylene compositions with a high content of heavy mineral fillers suited for coating metal pipes
09/1999
09/30/1999WO1999049259A1 Composite carbon fibre based armour for flexible pipe
09/30/1999WO1999049171A2 Threaded assembly of metal tubes designed to contain a corrosive fluid
09/29/1999EP0945665A1 Tube, in particular wrapped tube
09/29/1999CN2341004Y Corrosionproof dielectric joint for pipeline
09/22/1999EP0943067A1 Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same
09/22/1999EP0721382B1 Method, device and apparatus for coating a tube, particularly a pipeline tube
09/21/1999US5955162 Calcium alumina cement lined pipe
09/21/1999CA2160134C Plumbing fixture carrying drinking water comprised of a copper alloy
09/16/1999WO1999046534A1 A sheath
09/14/1999US5950681 Method of renovating pipes
09/07/1999US5948218 Corrosion protection system
09/07/1999US5947528 Pipe flange assembly
09/07/1999CA2144199C Calcium alumina cement lined pipe
09/02/1999WO1999043974A1 Threaded connection for internally clad pipe
09/01/1999EP0938964A2 Branch pipe liner bag and branch pipe lining method
08/1999
08/24/1999US5941662 Method and apparatus for protecting a flange
08/24/1999US5940952 Method for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes
08/18/1999EP0936235A1 New coating for pipelines, tanks and structural steelwork
08/05/1999DE19841891A1 In-situ refurbishment of steel pipes supplying gas, water or oil
08/04/1999CN1044453C Method for producing scaly glass fibre reinforced plastic tube
08/03/1999US5932306 Corrosion-and-chipping-resistant resin coating structure for stainless steel pipes
07/1999
07/28/1999EP0931639A2 Pipe lining method
07/27/1999US5926936 Method for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes
07/27/1999CA2260464A1 Pipe lining method
07/21/1999EP0698191A4 Plumbing fixture carrying drinking water comprised of a copper alloy
07/20/1999US5924913 Process for renovating pipes
07/15/1999WO1999035434A1 Method of protecting articles
07/14/1999CN2328844Y Wear resistance corrosion resistance pipe
07/08/1999WO1999034032A1 Corrosion protected treatment device
07/07/1999CN1221864A Compound structural lining for repairing on-line pipeline and its pressure coating tech.
06/1999
06/30/1999CN1043920C Antiseptic job method for long distance metal pipeline liner plastic film tube
06/16/1999EP0680581B1 Heat-recoverable article
06/16/1999CN2324371Y Corrosion proof device for sea water pipeline
06/02/1999CN2322022Y Light type cathode protective instrument
06/02/1999CN1218162A Manufacture of steel pipe with polyethylene coating
05/1999
05/27/1999WO1999025899A1 A corrosion-protected metal construction, e.g. in the form of a pipeline includable in a larger pipe system
05/25/1999US5906400 Galvanic corrosion protection system
05/25/1999US5906399 Threaded joint for metal tubes with internal coating
05/19/1999EP0646060B1 Laminate
05/19/1999CN2319195Y Corrosion-proof treatment device for inner wall of steel pipe
05/19/1999CN1216811A Indoor gas pipeline repairing and reinforcement method
05/12/1999CN1216350A Particle-reinforced aluminum-base wear-resisting pipe and its production
05/11/1999CA2070375C Apparatus for everting a tube and method of using same
05/06/1999WO1999021916A1 Polypropylene compositions with a high content of heavy mineral fillers suited for coating metal pipes
05/06/1999EP0913622A2 Pipe coupling
05/06/1999EP0913501A1 Process for repairing a tube by applying a lining and use of the process
05/05/1999CN2317385Y Protective pipe
04/1999
04/28/1999EP0910482A1 Process for repairing plastic coatings of metal pipes
04/27/1999US5896896 Method of transporting a fluid in a pipeline having a porous structure
04/27/1999US5896894 Elongated tubular housing for monitoring systems
04/22/1999WO1999019660A1 Product for coating the internal surface of a conduit, method and machine using same and conduit coated with same
04/21/1999EP0686246B1 Piping element for burried conduit, corresponding burried conduit, and method for manufacturing said piping element
04/21/1999EP0660907B1 Tubular assembly and method of making same
04/21/1999CN1214376A Method for preventing contamination by lead from metallic piping devices
04/14/1999EP0908661A2 Branch pipe liner bag and pipe lining method
04/14/1999CN2314219Y Steel-plastic composite pipe with expansion damping structure
04/14/1999CN2314218Y Lining for pipe
04/14/1999CN2314217Y Corrosionproof pipe for conveying liquid
04/08/1999WO1999017049A1 Method for protecting the inner surface of a duct using a polymeric material
04/06/1999CA2249632A1 Branch pipe liner bag and pipe lining method
03/1999
03/31/1999CN1212751A Method for lining underground pipelines
03/30/1999US5888339 Applicator apparatus for wrapping a joint of pipe with a web of concrete material
03/30/1999US5888331 Joining bodies of thermoplastic material
03/30/1999CA2089766C Epoxy/polyolefin coating process
03/24/1999CN1211701A Stainless steel internally lined water pipe
03/23/1999US5885029 Antifouling wall structure, method of constructing antifouling wall and antifouling wall panel transporter therefor
03/17/1999CN2310917Y Low-temp. cured epoxy resin paint corrosion-resistant cloth
03/04/1999DE19747100A1 Treating cement mortar lining of water pipeline pipes and components
03/03/1999EP0899253A1 A method of treating the cementitious coating of water-conduits made of steel or cast iron
1 ... 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ... 58