Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8017053 | Manufacturing of shaped coolant hoses The present invention relates to a process for manufacturing a shaped article such as tubes, and hoses comprising processing a fiber-reinforced thermoplastic polymer in an extruder apparatus. ... | 09/13/2011 |
| 7163388 | Method and apparatus for incorporating lumens into the wall of a tubular extrusion A polymer extrusion head for forming continuous shapes having one or more lumens therein. The head includes an extrusion mandrel and die. At least one lumen pipe is disposed radially through a port in the die to intersect the polymer flow in the annular region betwe... | 01/16/2007 |
| 7017352 | Cooling of extruded and compression molded materials The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface tha... | 03/28/2006 |
| 6821609 | Extrusion die for making hollow-chamber profiled panels of thermoplastic plastic with interior coextruded layer An extrusion die has a distributing tool; a profiling nozzle; and at least three melt-flow ducts; a first melt-flow duct is routed around a second melt-flow duct or the distributing tool using a branch and is merged again downstream from the branch; and a third melt... | 11/23/2004 |
| 6787092 | Pipe extrusion die for multi-layer pipe There is provided a pipe extrusion die that includes a first and second die assembly. The first and second die assembly each include an extrusion head, a nozzle carrying an outer die lip, a hollow mandrel, an inner mandrel carrying an inner die lip, and a layer-form... | 09/07/2004 |
| 6685872 | Method for preparing multilayer films A method for coextruding a multilayer tubular film having a barrier material comprises (a) extruding a core extrudate of barrier material with a core extruder; (b) providing a preencapsulation die adjacent the outlet of the core extruder, the prencapsulat... | 02/03/2004 |
| 6672324 | Method of manufacturing branched pipe, pipe manufacturing apparatus and branched pipe A branched pipe (5) is manufactured by continuous extrusion in such a manner that a manifold (5a) of a branched pipe (5) is manufactured by extruding plastic material into the space defined by moving chill moulds (1, 2) and a mandrel (10) arranged therein... | 01/06/2004 |
| 6533973 | Extrusion die for biodegradable material with die orifice modifying device and flow control device An extrusion die for extruding biodegradable material, the extrusion die including: a mandrel; an outer member positioned near the mandrel; an extrusion orifice between the mandrel and the outer member; a member in communication with at least one defining... | 03/18/2003 |
| 6524516 | Apparatus and a method for the extrusion of moulding from a cross-linkable polymer material The present invention relates to apparatus for extruding mouldings from cross-linkable polymer material. The apparatus includes a first part to which the polymer material is delivered from a material container, and a second part which forms a moulding too... | 02/25/2003 |
| 6409953 | Method of extruding plastic material in multi-layer tubular form A method of extruding plastic material in multi-layer form includes: providing an extrusion die having a first body member and a second body member surrounding the first body member and forming an annular passage therebetween which communicates with an an... | 06/25/2002 |
| 6299813 | Modified slot extrusion dies A honeycomb extrusion die comprising a die body incorporating an inlet face, a discharge face opposite the inlet face, a plurality of feedholes extending from the inlet face into the body, and an array of intersecting discharge slots extending into the bo... | 10/09/2001 |
| 6300469 | Production of reduced gas-permeable polyalkylene terephthalate films by strain induced crystallization PET with low gas permeability and good mechanical properties is produced utilizing strain-induced crystallization. This strain-induced crystallization process is utilized to produce PET films and sheets, among other products.... | 10/09/2001 |
| 6248277 | Continuous extrusion process and device for rods made of a plastic raw material and provided with a spiral inner channel Method and apparatus for the continuous extrusion of rods of plastic raw material. The rods contain at least one inner channel which is at least in part spiral-shaped. The raw material may be a powder-metallurgical or ceramic mass. The material is extrude... | 06/19/2001 |
| 6206675 | Extrusion die for the manufacture of monolithic adsorption tubes The invention relates to an extrusion die for the manufacture of monolithic adsorption tubes having a solid body portion with a multiplicity of tunnels for the passage of gas. The die comprises a multiplicity of rods positioned within an outer cylindrical... | 03/27/2001 |
| 6197239 | Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus An extrusion apparatus including at least one conical stator, and at least one conical rotor. The rotor is adapted for defibering or orienting a plastic material. The apparatus has an opening for receiving an elongate product or mandrel. The product or ma... | 03/06/2001 |
| 6187237 | Method for making a product to be extruded, and an extruder A method for making a product to be extruded and an extruder. The extruder has at least two conical stators and at least one conical rotor placed rotatably between the stators. The extruder further has supply conduits for feeding the material to be extrud... | 02/13/2001 |
| 6117384 | In-mold decorating process An improved process for the manufacture of plastic articles such as light assemblies, and the articles made by said process, are disclosed. The disclosed process includes a step wherein one or more colors are decorated onto a single film which is then inc... | 09/12/2000 |
| 6103151 | Extrusion die for biodegradable material with flow control device An extrusion die for extruding biodegradable material into a flexible, pliable and non-brittle structure, the extrusion die including: a cylindrical mandrel; a cylindrical outer ring positioned concentrically around the mandrel; an annular extrusion orifi... | 08/15/2000 |
| 6056533 | Apparatus for conduit extrusion An extrusion assembly includes a stationary housing section, and an outer die and mandrel for defining an annular passageway centered about an axis. The outer die and mandrel are held stationary against rotational motion about the axis. A rotor is rotatio... | 05/02/2000 |
| 6039908 | Method for honeycomb extrusion using a corrected flow gradient Apparatus and a method for extruding a honeycomb, providing reductions in curvature or bowing of the extruded honeycomb structure, employs a bow deflector positioned upstream of the extrusion die, the bow deflector comprising adjoining, independently rota... | 03/21/2000 |
| 5935493 | Method for blow-moulding In a method of blow moulding, a parison is extruded by pushing a hollow tube of hot thermoplastic material through a die gap 2 between a mandrel 3 and die 1. An exit compression ring 5 is formed on the mandrel 3 adjacent to the die exit 2. The ring acts a... | 08/10/1999 |
| 5874032 | Method for manufacturing expanded polytetrafluoroethylene products An improved method is provided for extruding ePTFE tube (12) for use in medical applications. A tube (12) of PTFE is extruded, preferably in an extrusion process, using counter-rotated die components (22, 26). The die component (16) is maintained at a con... | 02/23/1999 |
| 5863480 | Process for making a filler reinforced thermoplastic composites having biaxially oriented components There is disclosed a process and apparatus for the continuous production of a thermoplastic product having biaxially oriented components. Preferably the thermoplastic compound includes filler. The process may be used to manufacture hollow profiles or shee... | 01/26/1999 |
| 5788902 | Extrusion of degradable plastic material in tubular form A method of extruding degradable plastic material in tubular form includes providing an annular extrusion die having an annular extrusion orifice and a longitudinal extending annular passage for conveying plastic material to the extrusion orifice. The die... | 08/04/1998 |
| 5779959 | Process for forming plastic articles A polymer resin extrusion head includes one or more annular extrusion modules in which a spiral channel means having one or more convolutions extends from a resin inlet on the periphery of the module to an annular extrusion outlet. Preferably, the channel... | 07/14/1998 |
| 5762971 | Modular disk coextrusion die A coextrusion die includes a plurality of thin annular disks stacked on top of each other. Each annular disk includes a plurality of openings aligned with openings in the adjacent disk, thus forming multiple streams. Plastic melt may be supplied to the di... | 06/09/1998 |
| 5733491 | Extrusion device and process for two-layer section members An extrusion device for making a section member of complex section that includes an internal portion and an outer layer. The device includes a first inlet channel for a first molten plastics material, a body including an extrusion channel whose wall defin... | 03/31/1998 |
| 5674440 | Die head with adjustable mandrel and method A die head for extruding an annular body includes a mandrel having a warp portion with a number of segments spaced around the circumference of the mandrel. Heat is selectively flowed to the segments to warp the mandrel and vary the position of a die pin o... | 10/07/1997 |
| 5651935 | Spiral die and laminate production method using same A spiral die for forming a laminate includes an outer die ring, an inner die ring inserted into the outer die ring with a fit clearance therebetween, a plurality (m, a positive integer greater than 1) of spiral grooves each having a gradually decreasing d... | 07/29/1997 |
| 5648104 | Extrusion die An extrusion die for the extrusion of continuous hollow sections of plastic materials reinforced with fibers or molecules. Both the outer nozzle and inner mandrel are rotatable and have channels within them to allow the extrudate to flow through either th... | 07/15/1997 |
| 5639408 | Method and apparatus for forming plastic tube with spiral inlayed exterior design A one-piece tube multi-pack and its method of manufacture are disclosed. The one-piece tube multi-pack includes an elongated thin-walled tubular element made of transparent flexible plastic material with inner and outer peripherally extending walls. At le... | 06/17/1997 |
| 5620722 | Extrusion head for blow molding An extrusion head for extruding a polymer into a parison for blow molding and including a die ring and a mandrel. The die ring and mandrel each include a frustoconical portion. One frustoconical portion is shaped over its full length to define an ovalized... | 04/15/1997 |
| 5601778 | Process for producing a resin film based on a copolymer of ethylene and vinyl acetate The relationship between the average degree of roughness of the faces of rough appearance, expressed in microns, and the percentage by weight of units derived from vinyl acetate in the copolymer of which the film consists is greater than 0.019. The film i... | 02/11/1997 |
| 5562875 | Handling system and method for curved extrusions An assembly and method for processing extrudate material containing curves or angles into a predetermined overall configuration, including having a die assembly for an extruder which assembly controls the cross-sectional shape or profile of the extrudate ... | 10/08/1996 |
| 5536461 | Tube multi-pack methods of manufacture Tube multi-pack methods of manufacture are disclosed. The tube multi-packs that are produced by the method of the present invention are one-piece tube multi-pack including an elongated thin-walled tubular element made of transparent flexible plastic mater... | 07/16/1996 |
| 5531952 | Method and apparatus for forming tubular plastic film Apparatus for producing a tubular plastic product, for example film, has a die body with inner and outer die members defining between them an annular space, and a first inlet for feeding a first stream of resin into the annular space. The inner and outer ... | 07/02/1996 |
| 5522719 | Apparatus for manufacturing fiber reinforced elastic sheet An apparatus is provided for manufacturing a fiber reinforced elastic sheet by extruding and processing an elastomer containing staples by 25 volume % or less. The apparatus includes a flow adjustment portion provided in a flow path direction of the elast... | 06/04/1996 |
| 5518036 | Multi-layer plastic pipe and method and apparatus for extrusion thereof A method and apparatus for extruding a multi-layer plastic pipe are provided wherein a second liquified plastic is injected into and through a prow and, subsequently, into a radial flow conduit of a die assembly in which a first liquified plastic flows th... | 05/21/1996 |
| 5518676 | Process and extrusion press for making hollow body made of fluoro resin The invention relates to a hollow body made of fluoro resin, especially of PTFE, obtained by paste extrusion, exhibiting an anisotropy ratio lower than 1 and substantially equal to 0.5. For the manufacture of such hollow bodies a fluoro resin powder, espe... | 05/21/1996 |
| 5511965 | Apparatus for extruding tubing having a variable outer diameter An apparatus for making extruded tubing having one or more lumens therein with a variable outer diameter. The apparatus is useful for forming tubing of an extrudable material such as an elastomer or thermoplastic. The extrudable material is forced around ... | 04/30/1996 |
