Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8177542 | Rotating nozzle die machine for extrusion of two or more types of dough The present invention comprises a rotary drive nozzle die machine for use with at least first and second dough extruders. The machine includes at least one rotatable nozzle having at least two openings for extruding at least two strands of dough therethrough, a firs... | 05/15/2012 |
| 7404711 | Apparatus for extruding a profile on a glazing Apparatus for extruding a profile on a glazing comprises drive means on which is mounted an extrusion head with an extrusion nozzle, and means for rotating the nozzle relative to the drive means. The apparatus may be used in a process which comprises extruding the p... | 07/29/2008 |
| 7381042 | Nozzle head for an extruder A die head for an extruder including an outer shell, an inner cylindrical mandrel, an annular die gap at a discharge side of the die head, at least one intake opening for receiving a melted mass, at least one distribution element for distributing the melted mass to ... | 06/03/2008 |
| 7374416 | Apparatus and method for controlled width extrusion of filamentary curtain The invention provides a method for controlling the width of a plurality of extruded filaments comprising providing a polymer supply and an extrusion die comprising a plurality of extrusion capillaries and a plurality of counterbores allowing fluid communication bet... | 05/20/2008 |
| 7357890 | Apparatus and method for extruding a multilayered structure An apparatus and method for extruding a multilayered article employs a shearing rod connected to the end of an extruder screw. The shearing rod is rotated along with the extruder screw and shears the polymer materials being advanced along an annular space between th... | 04/15/2008 |
| 7338271 | Extrusion head having a rotating die A crosshead assembly for forming extruded shapes from molten polymer. The assembly includes body sections, a mandrel, a choke ring, and a tip holder for admitting, turning, and accelerating molten polymer toward a novel rotatable die sub-assembly. The die sub-assemb... | 03/04/2008 |
| 7311511 | Apparatus for converting free-flowing, at least partially thermoplastic feed material, into granules, agglomerates, pellets, compacts, and the like An apparatus is disclosed for converting feed material into granules under the application of pressure. The apparatus includes a conveyor screw arranged about an axis of rotation with at least one screw spiral, a rotationally symmetric working chamber arranged about... | 12/25/2007 |
| 7306449 | Food shaping device for forming three-layered foods A food shaping device for forming a three-layered food comprises: at least two first guide units and a food output unit. The food output device comprises a main tube; a middle tube; an inner tube; an inner circular path; an inner material guiding nozzle; and an oute... | 12/11/2007 |
| 7275924 | Container having extruder for a modeling compound The invention is directed to a toy container having an integrated extruder for extruding a quantity of a deformable molding compound. The toy may include a container having a storage portion configured to receive and store components of a molding compound extrusion ... | 10/02/2007 |
| 7270531 | Assembly for use in continuously forming one or more lengths of noise attenuating flexible cutting line for use in rotary vegetation trimmers An assembly for use in continuously forming a plurality of lengths of flexible noise attenuating cutting line for use in rotary vegetation trimmers. The assembly includes a breaker plate having a conically shaped inner portion and a planar outer portion. A plurality... | 09/18/2007 |
| 7247012 | Rotatable head for forming spiral extrusions A polymer extrusion crosshead assembly for forming a spirally-striped extrusion. The assembly includes conventional components for admitting, turning, and accelerating primary molten polymer toward a novel rotating die sub-assembly. A body element includes an axial ... | 07/24/2007 |
| 7241123 | Apparatus for producing and winding synthetic multifilament yarns An apparatus for producing and winding synthetic multifilament yarns, which has a spin unit 1 for melt spinning the yarns, at least one treatment unit 7 for treating the yarns, and a takeup unit 16 with a plurality of winding positions for windi... | 07/10/2007 |
| 7204882 | Polyurethane resin coating device A polyurethane resin coating device includes a material mixing unit for mixing materials to have them reacted to form polyurethane resin liquid mixture. Subsequently, the polyurethane resin liquid mixture flows downward to a pressuring and sending unit to be mixed a... | 04/17/2007 |
| 7153119 | Apparatus for extruding food dough An extruding apparatus for food materials having a filling material and a wrapping material extrudes and envelops the filling material with the wrapping material. An internal cylinder supplies the filling material while a concentrically arranged external cylinder cr... | 12/26/2006 |
| 7138478 | Process for mixing polymer melts with additives A continuous process for mixing polymer melts with additives, in particular polycarbonate melts with additives in liquid form, in solution or in dispersion is described. The additives are added to a main stream of polymer melt and are then mixed, preferably directly... | 11/21/2006 |
| 7131829 | Spiral die assembly A spiral die assembly can obtain a homogeneous pipe body, an inflation film with/without drawing and a functional film by dispersing molten resin homogeneously, and the spiral die assembly is capable of being applied to various molten resins and extruding conditions... | 11/07/2006 |
| 7097443 | Extruder transition section A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are co... | 08/29/2006 |
| 7052267 | Extrusion device for manufacturing a product based on a rubber mix An extrusion device (1) for manufacturing a product based on a rubber mix, which comprises a rotary roller (5), an inlet orifice (15) for the rubber mix and a vault (6) partially circumferentially covering the external surface (51)... | 05/30/2006 |
| 7008204 | Rotating extrusion die with spray nozzle An extrusion die for extruding biodegradable material, the extrusion die comprising: a mandrel; a nozzle extending from the mandrel; an outer member positioned near the mandrel; an extrusion orifice between the mandrel and the outer member; a member in communication... | 03/07/2006 |
| 6966763 | Arrangement for making a belt made of plasticatable material The two belt parts (2a, 2b) of a belt (2) made of plasticatable material are produced with the aid of a first station (6) and a second station (8). The first station (6) includes a rotatable mold drum (14 | 11/22/2005 |
| 6966765 | Rotating circular die A rotating circular die for mounting on an extruder. The die incorporates an inner component comprising a cone with support independent of the outer component and extruder, thereby permitting forward and backward adjustment of the inner component in relation to the ... | 11/22/2005 |
| 6957953 | Reservoir reducing screw tip An extruder for extruding extrudate is provided and includes a generally cylindrical barrel portion having an end face. A screw conveyor is rotatably arranged coaxially within the barrel portion and has a downstream end. The screw conveyor has helical flights that d... | 10/25/2005 |
| 6910875 | Device for producing an unvulcanized rubber member for tire manufacturing The present invention provides a device for producing an unvulcanized rubber member for tire manufacturing. The device includes an extruder with a die that extrudes the unvulcanized rubber member to form multiple rib-protrusions that extend in a direction correspond... | 06/28/2005 |
| 6896504 | Nozzle arrangement, nozzle carrier and device for extruding doughy substances For producing coiled bakery products comprising two strands each made of an outer and an inner doughy substance, a nozzle arrangement (12) comprises two inner nozzles (14, 16), which are each surrounded by an outer nozzle (18, 20), wherein all o... | 05/24/2005 |
| 6881049 | Process for producing polybutadiene golf ball cores An improved process for producing polybutadiene golf ball cores is disclosed. The golf ball cores are from polybutadiene rubber compositions having a high Mooney viscosity and/or a high molecular weight and a low dispersity is disclosed. The apparatus includes an in... | 04/19/2005 |
| 6875002 | Oscillating guide cage An external stabilizer or guide cage for plastic film extrusion has an upper frame comprised of a ring and structure for rotatably supporting the ring. A lower frame is suspended from the ring of the upper frame, and is positioned such that the lower frame surrounds... | 04/05/2005 |
| 6830444 | 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 member of ... | 12/14/2004 |
| 6821106 | Roller die preformer for wide extrusions A roller die preformer for use in an extrusion system to form wide extruded components, such as a rubber tire tread, on a surface of a roller. The roller die preformer includes a flow inlet, a flow outlet and a laterally expanding flow channel extending from the flo... | 11/23/2004 |
| 6805544 | Extruder An extruder includes a material feeding device feeding into a radial pump unit. The radial pump unit includes conical screws which are adjacently positioned and rotate in the same direction. The radial pump unit transfers an annular flow of the material into the ext... | 10/19/2004 |
| 6805543 | Nozzle arrangement, nozzle carrier and device for extruding doughy substances For producing coiled bakery products, a nozzle arrangement (10) comprises an inner nozzle (14), which is disposed coaxially with an axis of rotation (26), and an outer nozzle (18, 19), which is disposed axially offset relative to said inn... | 10/19/2004 |
| 6799881 | Extruder arrangement An extruder arrangement for viscous material, especially rubber or natural or synthetic rubber mixtures, is provided. It has a screw extruder (12) with an extruder screw (16) that in the direction of conveying is followed downstream by a conveying devi... | 10/05/2004 |
| 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 |
| 6685460 | Extrusion molding machine The present invention provides a molding extrusion machine comprising a pair of delivery rolls arranged forward continuously with a die attached to the end of an extruder by which a molten resin material is extruded through the die toward a rolling part b... | 02/03/2004 |
| 6669458 | Extrusion die with rotating components The invention relates to an extrusion die assembly having a balanced flow path in which the die and tip modules cooperate to form an extended exit channel which communicates with an extrusion channel. The die is rotatably mounted on the die holder and the... | 12/30/2003 |
| 6644952 | Rotating extruder nozzle structure The invention relates to a rotating nozzle structure of an extruder which comprises a rotatable nozzle, a die, which rests against the extruder frame and which comprises an annular front surface on the nozzle side, and a sealing plate, which is arranged b... | 11/11/2003 |
| 6613128 | Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt An aromatic polycarbonate extruder which is a twin screw extruder for kneading components into a molten aromatic polycarbonate, the extruder having at least one module consisting of a kneading unit, a material seal unit, a back kneading unit and full-flig... | 09/02/2003 |
| 6610231 | Molding method for a surface fastener The molding method for molded surface fastener for molding a flat substrate and a plurality of first engaging elements integrally and continously using the same molding material. According to the method, a cooling/transportation means for cooling and tran... | 08/26/2003 |
| 6607772 | Method and apparatus for producing a braided puff extrudate A process and apparatus for the production of a braid shaped puffed extrudate. A tube or other peripheral containment vessel is placed at the exit end of an extruder die that produces two or more extrudate streams. A circular air stream is then introduced... | 08/19/2003 |
| 6604927 | Apparatus for forming thermoplastic composite materials A composite with a thermoplastic matrix and fiber reinforcement is made by rotation of an exit die about a roving of continuous fiber in the presence of a thermoplastic melt. The rotation causes opposing inner and outer helical flow conditions which reduc... | 08/12/2003 |
| 6602066 | Extruder for formable materials A toy includes a chamber having a longitudinal axis, a hollow interior, a first opening, and a second opening. The toy includes a die coupled to the first opening of the chamber, and an extruder received at the second opening of the chamber. A cavity is d... | 08/05/2003 |
