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Browse by Category: Main > Material Science
Class Information
Number: 425/133.1
Name: Plastic article or earthenware shaping or treating: apparatus > Means feeding fluent stock from plural sources to common shaping means to form composite product > Extrusion shaping means > Concentric
Description: Apparatus comprising plural coaxial circular shaping outlets.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8702413 Intermittent flow extrusion apparatus Apr. 22, 2014
8684719 Die tooling for extruding tubular product Apr. 1, 2014
8673197 Multi-layer structure and method of producing the same Mar. 18, 2014
8579624 Systems and methods for making multi-wall corrugated pipe Nov. 12, 2013
8574653 Intermittent flow extrusion process and food product Nov. 5, 2013
8562885 Multilayer structures having annular profiles and methods and apparatus of making the same Oct. 22, 2013
8562320 Resin molding device Oct. 22, 2013
8523552 Device and method for cooling an extruded plastic profile Sep. 3, 2013
8496460 Pipe extrusion die flow path apparatus and method Jul. 30, 2013
8465272 Apparatus and methods for fabricating food items Jun. 18, 2013
8398908 Plastics pipe Mar. 19, 2013
8297961 Co-extruder having a filling entrance from the rear Oct. 30, 2012
8241656 Articles including natural biodegradable polysaccharides and uses thereof Aug. 14, 2012
8231374 Extrusion apparatus for making multilayer articles Jul. 31, 2012
8226398 Apparatus and method for inflation extrusion molding of pressure-sensitive adhesive sheet Jul. 24, 2012
8192189 Arrangement and method in connection with extrusion tools Jun. 5, 2012
8162644 Die for extrusion forming head Apr. 24, 2012
8157555 Extrusion feed device for composite resin and composite resin mass Apr. 17, 2012
8092204 Apparatus and method for inflation extrusion molding of pressure-sensitive adhesive sheet Jan. 10, 2012
8043082 Injection head for a corrugator for the production of plastics pipes Oct. 25, 2011
8016580 Assembly and a method for extruding a tire component Sep. 13, 2011
7993122 Device for improved reinforcing element with a continuous center core member with very long fiber reinforced thermoplastic wrapping Aug. 9, 2011
7988438 Extrusion die vacuum seals Aug. 2, 2011
7980841 Defined ratio dual-wall pipe die Jul. 19, 2011
7959426 Apparatus for producing a multi-layer parison having a layer of varying thickness Jun. 14, 2011
7927088 Die assembly and process for production of multilayer extrusions with the same Apr. 19, 2011
7891963 Manufacturing apparatus of resin container Feb. 22, 2011
7883328 Extrusion apparatus for spiral stripping electrical wire Feb. 8, 2011
7883329 Device for the production of tubular pre-forms with asymmetrical annular pistons Feb. 8, 2011
7878788 Device for sheathing a strip of filaments, the device having symmetrical feed channels Feb. 1, 2011
7851024 Porous membrane and method for manufacturing the same Dec. 14, 2010
7811494 Cable manufacturing process Oct. 12, 2010
7811073 Blow head for producing blown tubular film Oct. 12, 2010
7771182 Apparatus for producing center-filled confectionery Aug. 10, 2010
7754124 Method and apparatus for multi-stream metered extrusion Jul. 13, 2010
7713047 Extrusion apparatus for making multilayer articles May. 11, 2010
7690908 Method and apparatus for forming high strength products Apr. 6, 2010
7648352 Apparatus for imprinting lines on direct-expanded food products having complex shapes with improved dimensional quality Jan. 19, 2010
7648658 Alternate polymer extrusion method with reduced drool Jan. 19, 2010
7625196 Device for manufacturing a double-walled, thermoplastic tube with a connecting sleeve Dec. 1, 2009
7556487 Apparatus for making center-filled chewing gum pieces Jul. 7, 2009
7540735 Extrusion die device for a molding machine Jun. 2, 2009
7513766 Extrusion apparatus having a driven feed segment Apr. 7, 2009
7500842 Catheter molding apparatus Mar. 10, 2009
7491048 Extrusion die for extruding hollow profiles Feb. 17, 2009
7476094 Plastic material metering system for plastic articles manufacturing device Jan. 13, 2009
7404710 Method and device for producing and packaging sausage-type products Jul. 29, 2008
7396223 Forming jig and method for producing formed body using same Jul. 8, 2008
7384259 Mechanism for adjusting a valve for regulating the flow of plastic to an extrusion die Jun. 10, 2008
7381042 Nozzle head for an extruder Jun. 3, 2008

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