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Browse by Category: Main > Material Science
Class Information
Number: 425/381
Name: Plastic article or earthenware shaping or treating: apparatus > Stock pressurizing means operably associated with downstream shaping orifice > Including auxiliary shaping means (e.g., mandrel, etc.) associated with molding orifice > Movable orifice or movable mounted inner mandrel within orifice
Description: Apparatus which comprises (1) auxiliary shaping means (e.g., a shaping mandrel) movably mounted within the confines of the orifice means, or (2) means supporting an orifice means to provide movement thereof.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8702413 Intermittent flow extrusion apparatus Apr. 22, 2014
8506280 Lip adjustment system having cross-bar Aug. 13, 2013
8491296 Lip drive part for T-die Jul. 23, 2013
8465272 Apparatus and methods for fabricating food items Jun. 18, 2013
8444796 Mold for producing hollow-cylinder-like molded parts May. 21, 2013
8414284 Extruder and roller-die combination Apr. 9, 2013
8377360 Systems and methods for providing a personal affector machine Feb. 19, 2013
8282378 Device for extruding a strip of rubber Oct. 9, 2012
8273276 Roller die preformer for wide extrusions Sep. 25, 2012
8235701 Adjustment mechanism for extrusion die Aug. 7, 2012
8197243 Head assembly for use in a rotary head extruder for extruding a food product Jun. 12, 2012
8157555 Extrusion feed device for composite resin and composite resin mass Apr. 17, 2012
8157557 Rotary die head of film blowing machine for starch biodegradable material Apr. 17, 2012
8113810 Extrusion die assembly Feb. 14, 2012
8105064 Multilayered film/sheet molding die Jan. 31, 2012
8043082 Injection head for a corrugator for the production of plastics pipes Oct. 25, 2011
8017053 Manufacturing of shaped coolant hoses Sep. 13, 2011
8007700 Coaxial cable of low dielectric constant, and a fabrication method and tool therefor Aug. 30, 2011
7980841 Defined ratio dual-wall pipe die Jul. 19, 2011
7938641 Extrusion die May. 10, 2011
7887311 Apparatus and method for electro-blowing or blowing-assisted electro-spinning technology Feb. 15, 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
7878786 Apparatus for producing tissue scaffold having aligned fibrils Feb. 1, 2011
7845927 Flexible lip extruder, and methods Dec. 7, 2010
7780430 Mandrel, and apparatus and process for resin film production with mandrel Aug. 24, 2010
7748975 Molding die Jul. 6, 2010
7713051 Apparatus for forming a parison May. 11, 2010
7588709 Casting device, solution casting apparatus and solution casting method Sep. 15, 2009
7540735 Extrusion die device for a molding machine Jun. 2, 2009
7513766 Extrusion apparatus having a driven feed segment Apr. 7, 2009
7504056 Extrusion molding system and method Mar. 17, 2009
7476094 Plastic material metering system for plastic articles manufacturing device Jan. 13, 2009
7458798 Apparatus for extruding polymers employing microwave energy Dec. 2, 2008
7458799 Tapered hollow pole extruder Dec. 2, 2008
7448864 Extruder head Nov. 11, 2008
7396223 Forming jig and method for producing formed body using same Jul. 8, 2008
7374412 Extrusion head May. 20, 2008
7364421 Method of making retroreflective sheeting and slot die apparatus Apr. 29, 2008
7340978 Method and apparatus for making a rotary tool for chip removing machining Mar. 11, 2008
7338271 Extrusion head having a rotating die Mar. 4, 2008
7329113 Adjustable extrusion die Feb. 12, 2008
7296991 Adjustable extruder die assembly die lip adjustment apparatus Nov. 20, 2007
7278844 Extrusion head for blow molding Oct. 9, 2007
7267541 Extruder head Sep. 11, 2007
7264461 Externally adjustable insert for extrusion manifold Sep. 4, 2007
7247012 Rotatable head for forming spiral extrusions Jul. 24, 2007
7175415 Moulding system, in particular a calibration die Feb. 13, 2007
7163388 Method and apparatus for incorporating lumens into the wall of a tubular extrusion Jan. 16, 2007
7160094 Die assembly Jan. 9, 2007

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