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| Number | Title | Issue Date |
| 8016588 | Injection molding machine An injection molding machine is provided which prevents, when molding a molding product, a molded part not to be used as a product to be integrally molded together with a molding product to be a product from being uselessly produced and improves production efficienc... | 09/13/2011 |
| 7513772 | Injection molding nozzle with valve pin alignment An injection molding apparatus is disclosed that includes a valve-gated nozzle having a nozzle tip assembly and a valve pin slidably disposed therein. The nozzle tip assembly includes a nozzle liner having a first valve pin guiding portion, a valve pin guide having ... | 04/07/2009 |
| RE40478 | Valve pin with thermocouple A valve pin for use in a melt channel in an injection molding machine. The valve pin has a valve pin body and at least one thermocouple substantially completely inside the valve pin body. ... | 09/02/2008 |
| 7410353 | Edge gated injection molding apparatus An edge gated injection molding apparatus includes a manifold having a manifold channel for receiving a melt stream of moldable material under pressure. A nozzle is coupled to the manifold and a nozzle melt channel of the nozzle receives the melt stream from the man... | 08/12/2008 |
| 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 |
| 7364425 | Valve-gated injection molding nozzle having an annular flow A valve-gated nozzle in an injection molding machine allows for smooth, blended melt flow into a mold cavity. In one example, this is accomplished through use of a valve-gated nozzle having a nozzle body with a nozzle melt channel in fluid communication with a manif... | 04/29/2008 |
| 7364426 | Distribution assembly for an injection molding apparatus An injection molding apparatus includes a manifold having a manifold channel for receiving a melt stream of moldable material from a source and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity communicates with the nozzle channel to receive ... | 04/29/2008 |
| 7326047 | Apparatus for producing a tubular body In an apparatus for producing a tubular body with a membrane forming a separating wall extending across the interior of the tubular body, an injection mold is provided including a cylindrical hollow space corresponding to the outer wall of the tubular body and a pin... | 02/05/2008 |
| 7322817 | Injection molding nozzle for plastic with at least two outlet openings An injection molding nozzle (1) for plastic with at least two outlet openings (2) facing toward different sides and directed oppositely is not constructed as an open injection molding nozzle but has a respective closure needle (5) in the outlet ... | 01/29/2008 |
| 7320588 | Distribution assembly for an injection molding apparatus An injection molding apparatus includes a manifold having a manifold channel for receiving a melt stream of moldable material from a source and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity communicates with the nozzle channel to receive ... | 01/22/2008 |
| 7306455 | Multi-position valve pin for an injection molding apparatus An injection molding apparatus that includes a nozzle having a nozzle channel, a mold cavity in communication with the nozzle channel of the nozzle for receiving a melt stream of moldable material from the nozzle channel through a mold gate; and a valve pin that is ... | 12/11/2007 |
| 7291008 | Needle shut-off nozzle for an injection molding machine The needle shut-off nozzle is provided in a housing for delivering polymer melt to an injection molding machine or an injection molding tool. The nozzle is mounted in a channel of the housing for a flow of the polymer melt, a nozzle at an outlet of the channel, a sh... | 11/06/2007 |
| 7291007 | Valve ring gate for thermoplastic and thermoset injection molding An injection molding machine having a first mold portion and a second mold portion. The second mold portion being movable relative to the first mold portion and together defining a mold cavity. The injection molding machine includes a fluid path extending through th... | 11/06/2007 |
| 7287977 | Hot runner manifold system A manifold system (50) comprising a main manifold (56) with a plurality of arms (64), a plurality of sub-manifolds (52) spaced from the main manifold (56) and communicating with the main manifold (56) through a plurality of ... | 10/30/2007 |
| 7275923 | Valve gate assembly A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can move between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operati... | 10/02/2007 |
| 7270538 | Mixing device A mixing device for use with a manifold in an injection molding apparatus. The mixing device has a body which has a melt channel therethrough. The melt channel has a plurality of increasing sections which have an increasing cross-sectional area in a downstream direc... | 09/18/2007 |
| 7252501 | Nozzle and apparatus for injection molding A nozzle controls flow of melt in injection molding equipment by passive actuation with opening and closing of a mold assembly. The nozzle comprises a valve pin having a pin passage therethrough movably supported within a nozzle passage and a contact arm transverse ... | 08/07/2007 |
| 7249945 | Device for opening and closing injection nozzles in an injection moulding tool A device for opening and closing injection nozzles in an injection moulding tool. The injection nozzle comprises a nozzle member, the nozzle opening of which can be opened and closed with a needle. The needle is stationarily arranged on a piston plate that is suppor... | 07/31/2007 |
| 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 |
| 7225953 | Valve gate assembly A valve gate assembly is provided for regulating a flow of molten material through a gate and into a mold. The valve gate assembly includes a movable valve having a closed position closing the gate to prevent molten material from entering the mold and an opened posi... | 06/05/2007 |
| 7226283 | Injection molding apparatus with a melt channel in valve pin An injection molding apparatus includes a manifold with a manifold melt channel, a nozzle with a nozzle channel and a valve pin with an outer surface in proximal to an inner surface of the nozzle channel. A valve pin melt channel is defined by and substantially coax... | 06/05/2007 |
| 7220117 | Nozzle and apparatus for injection molding A nozzle for controlling flow of melt in a mold assembly comprises a valve pin guide interposed between a nozzle inlet and nozzle outlet, a valve pin movably supported thereby, and a contact arm engaging the valve pin and transverse to and passing through the valve ... | 05/22/2007 |
| 7214048 | Valve gate assembly for injection molding machine Disclosed is a valve gate assembly for an injection molding machine. By controlling a valve pin through a linear motor controlled by a pulse signal and through a cooling block, an opening/closing amount of a gate can be precisely managed. Thereby, a mold is increase... | 05/08/2007 |
| 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 |
| 7198477 | Mechanical shut-off valve for gas-assist injection molding A mechanical shut-off valve member for use with gas-assisted injection molding systems. A piston member is slidingly positioned in a body member or housing and spring-biased to a closed position. The valve member is opened by the injection of plastic material throug... | 04/03/2007 |
| 7192270 | Tight pitch nozzle with individual valve gate control An injection molding system is disclosed. The system includes a multiple valve gated nozzle. The flow through each valve gate is determined by individually operated valve pins. Each valve pin is independently controlled by a separate actuation unit. In order to achi... | 03/20/2007 |
| 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 |
| 7182893 | Valve gated nozzle having a valve pin with a sensor An injection molding apparatus for delivering a melt stream of moldable material to a mold cavity. A valve pin extends through a melt channel of the apparatus that is axially movable to control the melt stream within the melt channel and/or to selectively open a gat... | 02/27/2007 |
| 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 |
| 7175418 | Melt control system for injection molding A method and apparatus for proportioning flow and controlling pressure to a gate of an injection mold. The invention decouples the control surface from the gate closure to reduce the required actuation force. Methods for estimating the pressure and flow rate enterin... | 02/13/2007 |
| 7175420 | Valve gated injection molding system with independent flow control An injection molding system includes a manifold and a valve gated hot runner nozzle. The gating mechanism includes an actuated valve pin, where the mold gate orifice is open when the valve pin is in a first position to allow melt to flow there through. The mold gate... | 02/13/2007 |
| 7172409 | Injection molding valve pin bushing A valve pin bushing for a valve gated injection molding apparatus having, a back plate, a valve pin bushing, and a manifold, with axially aligned respective valve pin bores. The valve pin bushing includes a back plate contacting surface and an opposite manifold cont... | 02/06/2007 |
| 7172410 | Adjustable valve pin assembly A valve pin adjustment system is provided for use in valve gated injection molding applications which enables adjustments to the positioning of the valve pin without necessitating removal of the clamping plates and valve assembly components, including valve pins. A ... | 02/06/2007 |
| 7168943 | Guided valve pin for an injection molding apparatus An injection molding apparatus comprises a manifold having a manifold channel for receiving a melt stream of moldable material under pressure and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity is in communication with the nozzle channel of... | 01/30/2007 |
| 7149176 | High-density optical disc A compact high-density optical disc capable of securing recording/reproducing characteristics and high-density recording capacity. The high-density optical disc has a whole diameter of 80 mm or less to 28 mm, a whole thickness in a range of 0.3–0.7 mm, and a posit... | 12/12/2006 |
| 7140858 | Apparatus and process for injection molding articles of plastics material It is provided an apparatus for injection molding articles of plastics material comprising: molds (2a) and countermolds (2b) forming molding units (3), molding cavities (7) being defined inside said molds and countermolds; o... | 11/28/2006 |
| 7137807 | Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece A nozzle for an injection molding apparatus is provided. The injection molding apparatus includes a manifold and a mold component. The manifold has at least one runner therein that is downstream from a melt source. The mold component defines at least one mold cavity... | 11/21/2006 |
| 7131834 | Valve pin adjustment device The invention relates to an adjustment device for a valve pin on an injection molding machine, and particularly on a multi-cavity machine, having a plurality of valve pins mounted on a common yoke plate which is actuated by a common actuator. The adjustment device i... | 11/07/2006 |
| 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 |
| 7121820 | Valve gate assembly A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can move between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operati... | 10/17/2006 |
