Patents
Sitemap › B29 - Working of plastics; Working of substances in a plastic state in general › B29L - Indexing scheme associated with subclass , relating to particular articles › B29L 23 - Tubular articles
Patents for B29L 23 - Tubular articles (4,866)
02/1999
02/17/1999EP0676020B1 A joint
02/02/1999CA2109113C A method for manufacturing a joint pipe
01/1999
01/27/1999EP0892711A1 Process of reshaping decorated plastic materials
01/27/1999CN1206368A Method of socketing pipe
01/21/1999WO1998042492A3 Device and method for producing cellulose tubular films
01/19/1999CA2167212C A method of joining reinforced thermoplastic pipes
01/19/1999CA2117327C A method for combustion of hydrocarbons
01/12/1999US5858540 Fluororesin compositions, heat-shrinkable tubings and insulated wires employing the fluororesin compositions
01/12/1999CA2170451C Apparatus for producing ribbed hose
01/07/1999EP0615488B1 Method and article for microwave bonding of polyethylene pipe
01/05/1999US5855930 Workhead for forming a pipe bell at an end of a pipe made of thermoplastic material
01/05/1999US5855731 Sterile containment welding device for plastic tubes
12/1998
12/30/1998EP0431000B2 Method and device for joining together of tubular plastic products
12/29/1998US5853831 Vibration welded hollow moldings of polyamide resin composition
12/16/1998CN1202130A Method for stripping open ended bellows part from injection mold
12/16/1998CN1202128A Method for heating and/or cross-linking of polymers and apparatus therefor
12/08/1998US5846602 Process and device for the production of a tube for lining pipe conduits and sewer systems
12/08/1998US5846025 Apparatus and a method for lining an underground pipe
12/02/1998EP0644826B1 Joining bodies of thermoplastic material
11/1998
11/26/1998WO1998052732A1 Method for producing polymer electrolyte membrane and fuel cell
11/26/1998CA2291147A1 Method for producing polymer electrolyte membrane and fuel cell
11/25/1998EP0879715A1 Tube tire
11/25/1998EP0879131A2 An extrusion apparatus and method, a tubular product, and a pipe
11/24/1998US5839475 Method and apparatus for lining a pipe with a polymer linear
11/11/1998CN1198707A Process for producing packaging tubes
11/10/1998US5834034 Apparatus for producing ribbed hose
11/04/1998EP0875713A2 Tubular lining material
11/04/1998EP0875362A2 Joint between tube and connecting element made by HF welding
11/04/1998EP0875358A2 Method for thermoforming tubes by using HF field
11/03/1998USRE35944 Method of everting a tube
11/03/1998US5830946 Rubber compositions
11/03/1998US5830329 Using glow discharges; medical equipment
10/1998
10/28/1998EP0873846A2 Haul-off apparatus for plastic tubular films
10/28/1998CN1197424A Heat setting of medical tubings
10/28/1998CN1197423A Orienting extrusion processes for medical tubing
10/28/1998CN1197399A Oriented medical tubing
10/28/1998CN1196999A Collocation of welder
10/27/1998US5827327 Carbon containing vascular graft and method of making same
10/21/1998CN1196697A Oriented polymeric products
10/20/1998US5824179 Method of joining reinforced thermoplastic pipes
10/14/1998EP0714346B1 A welding method in the manufacture of a spirally wound tube and a welding head for performing the method
10/14/1998CN1196011A Apparatus and method for adjusting mandrel and kernel while producing plastic pipe
10/08/1998DE19738100C1 Butt welding of thermoplastic pipes
10/07/1998EP0868278A1 Method for producing homogeneous material with an extruder, an extruder, and a multilayer plastic pipe
10/07/1998EP0868252A2 Electrofusion saddle coupler and method and apparatuses of making electrofusion saddle couplers
10/06/1998US5817200 Surfacing of rehabilitating structures
10/01/1998WO1998042492A2 Device and method for producing cellulose tubular films
10/01/1998CA2255638A1 Device and method for producing cellulose tubular films
09/1998
09/30/1998EP0867120A1 Cellulose food casing manufacture
09/30/1998EP0867119A1 Cellulose food casing manufacture
09/29/1998US5814182 Self-contained and self-propelled machine for heat fusing polyolefin pipes
09/15/1998CA2109582C A method for joining spirally wound thermoplastic pipes together
09/09/1998EP0863359A1 Method and apparatus for manufacturing a hose for lining of pipelines and channel systems
09/09/1998EP0807012B1 Method for producing a thermoplastic tubular profile and internal cooling unit for such a method
09/09/1998CN1192718A Tube tyre
09/08/1998US5804268 Plastic hollow member
09/08/1998US5802689 Tube connecting apparatus
09/07/1998CA2230806A1 Method and apparatus for the manufacture of a tube for lining pipelines and sewer systems
09/02/1998EP0861149A1 Method for stripping open ended bellows part from injection mold
09/02/1998CN1192177A An extrusion apparatus and method, a tubular product, and a pipe
09/01/1998US5800770 Method of making a flexible tube
09/01/1998CA2161780C Pipe liner composition
08/1998
08/27/1998WO1998037353A1 Method and fitting for joining plastics components
08/26/1998EP0758950B1 Gap adjustment of a plastic flow channel in a plastic part forming device
08/26/1998EP0682758B1 A method of making a pipe connection and a tool suitable for use when carrying out the method
08/25/1998US5798013 Method and apparatus for producing a tubular lining hose
08/19/1998CN1190924A Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus
08/18/1998CA2146420C Lubricous flexible synthetic hose and method for producing same
08/13/1998DE19702637C1 Vorrichtung zum Herstellen von Querrippen-Rohren Apparatus for producing transversely ribbed tubes
08/05/1998EP0856697A1 Pipe lining method
08/05/1998CN1039394C Wrapping pipe for a bundle of hollow fibers method and device for prodn. thereof
08/04/1998CA2228676A1 Pipe lining method
07/1998
07/30/1998WO1998032585A1 Device for producing cross-finned pipes
07/30/1998WO1998032583A1 Device for producing cross-finned pipes
07/30/1998WO1998032582A1 Device for producing cross-finned pipes
07/30/1998CA2278597A1 Device for producing cross-finned pipes
07/29/1998EP0758290B1 Travelling mold with mold block carriers
07/29/1998EP0755322B1 Process for manufacturing a tube from plastic
07/28/1998US5786572 Device for heating the internal surface of the open end of plastic tublar containers
07/28/1998US5785456 Material and method for lining pipes
07/15/1998EP0853208A1 Multilayer pipe
07/15/1998EP0852954A2 Reinforced tubes
07/14/1998US5780123 Tubular liner and a method for connecting ends of liner tubes
07/08/1998EP0851806A1 A method of socketing a pipe
07/07/1998US5776387 Method of forming stabilized porous pipe
07/01/1998EP0850132A1 An apparatus and method for adjusting a mandrel and a kernel while producing a plastic pipe
07/01/1998EP0767729A4 Clean air ducts and methods for the manufacture thereof
07/01/1998CN1038919C Method and apparatus for continuously manufacturing compounded pipe with a pipe socket
06/1998
06/30/1998US5773044 Apparatus for the manufacture of corrugated tubing from thermoplastic synthetic resin
06/30/1998US5773036 Device and method for extrusion-coating tubes or compound tubular connection fittings with rubber or plastic
06/30/1998US5772824 Process and means for welding corrugated tubes and/or compound tubes and weld connection produced thereby
06/25/1998WO1998026919A1 Thermoplastic composite products and method of lining pipework
06/23/1998CA2222710A1 System with a welding apparatus
06/16/1998US5767183 Heat shrinkable silicone tube and method for making
06/16/1998US5766540 Cellulose food casing manufacturing method
06/10/1998EP0846547A2 Method and apparatus for continuously curving thermoplastic shrinkable tubular casings
06/10/1998EP0846054A1 Process for producing packaging tubes
06/10/1998DE19702645C1 Corrugated plastic pipe moulding unit comprising moulding jaws on sliding carriage
06/09/1998CA2077872C Apparatus for making annularly ribbed plastic pipe and method of making such pipe
06/07/1998CA2222111A1 Process and apparatus for continuously forming rings of thermoplastic, shrinkable tubular casings
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