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| Number | Title | Issue Date |
| 7371063 | Injection molding nozzle In a hot channel injection molding nozzle comprising a nozzle body including a mass flow channel for a melt to be injected into a mold, wherein the nozzle body has a nozzle outlet opening at one end and an inlet opening disposed at one side of the other end of the n... | 05/13/2008 |
| 7316557 | Die for extruding material A die assembly and a process for using the die assembly is disclosed. The die plate is made of a material that is somewhat resistant to cracking when subjected to pressure of an extrudate material from behind the die assembly. A series of recesses are arranged about... | 01/08/2008 |
| 7314368 | Dual-cylinder injection molding apparatus An injection molding apparatus for injecting resin into a mold comprises an injection cylinder in fluid communication with the mold, wherein movement of a piston relative to the cylinder injects a selected quantity of resin into the mold. A plasticizing unit include... | 01/01/2008 |
| 7244118 | Hot runner nozzle and manifold seal An injection molding apparatus includes combined sealing elements located between a nozzle head of an injection molding nozzle and a mold plate. The sealing elements are arranged so that they force the nozzle head toward an outlet surface of a manifold and provide a... | 07/17/2007 |
| 7210922 | Valve pin operating mechanism A hot runner injection molding apparatus includes a manifold for transferring molten plastic into a channel to a mold gate. A valve pin extends at least partially through the channel and is reciprocally movable from a retracted position to an extended position to cl... | 05/01/2007 |
| 7189071 | Telescopic manifold nozzle seal An injection molding apparatus including a manifold having a manifold melt channel, a nozzle having a nozzle melt channel, a slidable seal having seal melt channel located between the nozzle and the manifold melt channels, and a biasing element that provides sealing... | 03/13/2007 |
| 7182591 | Injection nozzle system and injection molding machine incorporating same A nozzle system is provided for an injection molding machine. The nozzle system includes a nozzle tip that is removably connected to a nozzle body with a sealing and mounting sleeve element. The nozzle body includes a first connector for releasably connecting with a... | 02/27/2007 |
| 7125242 | Decompression device for an injection molding apparatus A sprue bushing includes a melt channel for receiving a melt stream of moldable material from a source. The melt channel includes a first portion, a second portion and a decompression cavity located between the first portion and the second portion. A manifold having... | 10/24/2006 |
| 6739862 | Dual cylinder injection molding apparatus An injection molding apparatus for injecting resin into a mold comprises an injection cylinder in fluid communication with the mold, wherein movement of a piston relative to the cylinder injects a selected quantity of resin into the mold. A plasticizing unit include... | 05/25/2004 |
| 6444319 | Method for the surface coating of an interior fitting and interior fitting produced according thereto So that a method for the surface coating of an interior fitting for vehicles with a lacquer or resin layer, in which the interior fitting to be coated is inserted into a cavity of a molding tool, the inner wall of which is at a defined distance from the i... | 09/03/2002 |
| 5484662 | Solid lubricant and hardenable steel coating system A solid lubricant coating system for use with a metal interface subject to high temperatures and wet lubrication, comprising agglomerates of particles of (i) solid lubricant particles selected from the group consisting of graphite, boron nitride, molybden... | 01/16/1996 |
| 5464579 | Multi-level stacked mold system An injection mold for use with a molding press has four mold levels in axially stacked relation, permitting a substantial doubling of output for a given size of press as compared with a back-to-back two level stacked mold. The mold feeder flow path extend... | 11/07/1995 |
| 5229145 | Multi-level stacked mold system An injection mold for use with a molding press has four mold levels in axially stacked relation, permitting a substantial doubling of output for a given size of press as compared with a back-to-back two level stacked mold. The mold feeder flow path extend... | 07/20/1993 |
| 5151025 | Electrically heatable nozzle for an injection molding machine, a hot runner system or the like A nozzle for injecting molten plastic includes a housing having an inlet and an outlet. Wires embedded in the housing serve to heat the housing. The housing defines a chamber, and a strainer is disposed in the chamber between first and second guides which... | 09/29/1992 |
| 5068065 | Faster cycling sprue method and apparatus for injection molding plastic optical disks Optimum sprue design requires suitably large cross-sectional area of the open aperture during mold filling and packing yet fast heat removal from the molten sprue during solidification. This is accomplished by a "hollow" sprue configuration, wherein an en... | 11/26/1991 |
| 4975038 | Device for the injection of a plastic material into a mold A device for the injection of a plastic material in a mold having an injection head with an injection face designed to be placed in contact with the mold feeder channel. The injection head has an injection chamber supplied with plastic material by a feede... | 12/04/1990 |
| 4756683 | Device for pressure-aided molding, especially injection molding of shaped bodies The device for pressure-aided molding of shaped bodies formed from high-molecular masses, preferably of small dimension, comprises at least one preparation chamber having at least one plasticizing or transport and mixing screw conveyor and at least one ch... | 07/12/1988 |
| 4678427 | Automatic shut off nozzle for plastic extruder An apparatus for purging an injection molding machine utilizing a three stage or three position nozzle assembly.... | 07/07/1987 |
| 4647274 | In-mold coating apparatus An in-mold coating apparatus which comprises movable and fixed molds which when mated together defines a molding cavity, and an injector assembly for injecting a plasticized coating material into the molding cavity to form a coated layer on a primary mold... | 03/03/1987 |
| 4386903 | Injection-molding machine with hydraulic mold clamping A stationary platen of an injection-molding machine, carrying a mold portion with a sprue leading to one or more cavities, is connected by a set of metallic tie bars with a fixed part of the machine frame containing the mold drive and is limitedly slidabl... | 06/07/1983 |
| 4121740 | Injector head for injection molding machine A distributing head is attached to the lower end of the barrel of a reciprocating screw injector and carries three injection nozzles which inject molding material into three mold cavities during each injection cycle. The nozzles are supported within sleev... | 10/24/1978 |
