Patent application number | Description | Published |
20080258342 | Dual Piston Valve Stem Actuator and Associated Method of Use - An injection molding apparatus includes a valve support structure having an internal channel for directing a flow of melted resin to a mold cavity. A first valve actuator is supported by the valve support structure and is operatively connected to a valve stem. The valve stem extends at least partially through the internal channel through a valve aperture. A bushing is fitted in the valve aperture. A second valve actuator is located adjacent the first valve actuator. The second valve actuator is operatively connected to a sleeve member with a hollow interior dimensioned to slidingly engage the valve stem and an exterior surface dimensioned for sliding movement in the bushing. The second valve actuator selectively moves the sleeve member between a retracted position where the sleeve member moves toward the bushing and an extended position where the sleeve moves away from of the bushing. | 10-23-2008 |
20080260889 | Nozzle Tip for High Melt Pressure Applications - An improved nozzle for high melt pressure applications includes an inner body portion having a melt channel, the inner body portion having an inlet face and a melt outlet; an outer body portion having a seal face, with the outer body portion inducing a compressive force on the inner body portion at least during operation of the nozzle; the plane of the inlet face of the inner body portion intersecting the outer body portion, resulting in no part of the inner body portion extending beyond the seal face of the outer body portion; and the inner and outer body portions having different relative thermal conduction and expansion coefficients. | 10-23-2008 |
20090191302 | Reconfigurable Hot Runner - A hot runner system having a melt distribution system that is reusable and reconfigurable to vary drop or nozzle locations to meet various design requirements. The melt distribution system includes a melt distributor in fluid communication with a melt source, at least one melt conduit in fluid communication with the melt distributor, and at least one nozzle in fluid communication with the at least one melt conduit. The hot runner system also includes a backing plate; a manifold plate detachably connected to the backing plate; a melt distribution system positioned between the backing plate and the manifold plate and having at least one nozzle associated therewith. The hot runner system may be configured and reconfigured to accommodate various drop or nozzle locations. | 07-30-2009 |
20090236774 | Melt Distribution Apparatus for Use in a Hot Runner and a Related Method for a Balancing of Melt Flow - Disclosed, amongst other things, is a melt distribution apparatus of a hot runner and a related method for balancing melt flow to a plurality of drops. The melt distribution apparatus includes a plurality of chokes with each choke of the plurality of chokes being associated with a corresponding one of a drop of a plurality of drops. Each choke of the plurality of chokes being configured to contribute, during an injection of a molding material therethrough, a choke melt-pressure loss such that the plurality of chokes contribute an aggregate choke melt-pressure loss that is generally between 10% and 75% of an aggregate hot runner melt-pressure loss. | 09-24-2009 |
20090274790 | SHOOTING POT FOR FEEDING MULTIPLE NOZZLES - A hot runner system including a shoot pot system for transferring melt from a single shooting pot to multiple nozzles. Melt is fed from a source of melt into the cavity through the multiple nozzles, and a valve isolates melt in the cavity from melt in the source. A plunger within the cavity is driven forward to inject melt in the cavity into a mold cavity at high pressure without significantly increasing the pressure of melt in the source. The plunger optionally functions as both the plunger and the valve by opening and closing communication between the cavity and the manifold as it is rotated. | 11-05-2009 |
20110033572 | Hot Runner System having Active Material - According to an aspect, there is disclosed a hot runner system ( | 02-10-2011 |
20110038980 | Hot Runner Including Nozzle-Support Structure - Disclosed is a hot runner ( | 02-17-2011 |
20110086121 | Safety Connector for Hot Runner, having Latch Releasably Interlocking Valve Stem with Actuation Plate - Disclosed is a safety connector for a hot runner having a valve stem and an actuation plate, the safety connector including: (i) a latch releasably interlocking the valve stem with the actuation plate so that in response to movement of the actuation plate, the valve stem becomes movable; and (ii) a latch mover being cooperative with the latch, and the latch mover being configured to move the latch responsive to a predetermined force acting on the valve stem so that so that the valve stem is released from the actuation plate. | 04-14-2011 |
20110135779 | Mold-Tool System having Manifold Body Defining Uninterrupted Melt Channels - A mold-tool system comprising: a manifold assembly, including: a manifold body defining: an inlet assembly; outlets being set apart from the inlet assembly; and uninterrupted melt channels extending between the inlet assembly and the outlets. | 06-09-2011 |
20110183030 | Hot-Runner System having Nano-Structured Material - Disclosed is a hot-runner system of an injection molding system, the hot-runner system comprising a hot-runner component, including: a material, and a nano-structured material being combined with the material. | 07-28-2011 |
20120055662 | Hot-Runner System having Non-Structurally Supportive Heat Insulator Including Visible Material - Hot-runner system ( | 03-08-2012 |
20120100243 | Hot-Runner System having Carbon Nanotubes - A hot-runner system for use with an injection molding system, the hot-runner system including a hot-runner component, a material; and carbon nanotubes being combined with the material. The carbon nanotubes are dispersed, at least in part, in the material and the material includes a metal alloy. The carbon nanotubes are dispersed in the metal alloy, so that the metal alloy and the carbon nanotubes are combined to form a CNT-metal composite material. | 04-26-2012 |
20120141626 | Mold Tool System having Manifold Body Including Uninterrupted Melt Channels - A mold-tool system is provided which includes a manifold body including an inlet assembly, a plurality of outlets spaced from the inlet assembly, and an uninterrupted melt channel associated with each outlet and extending between the inlet assembly and its associated outlets. Each melt channel may have a length which is substantially identical to the length of the other melt channels. | 06-07-2012 |
20120237631 | Hot-Runner System having Manifold Assembly Manufactured in Accordance with Free-Form-Fabrication - A hot-runner system ( | 09-20-2012 |
20120276235 | Mold-Runner System having Independently Controllable Shooting-Pot Assemblies - A mold-tool system ( | 11-01-2012 |
20130020740 | Molding Apparatus Including Source Providing Electrical Charge to Conduit - The present invention relates to a molding system ( | 01-24-2013 |
20130022704 | Mold-Tool Assembly Including Resin-Retaining Device Located Relative To Stem-Tip Portion - A mold-tool assembly ( | 01-24-2013 |
20130147092 | Multi-Property Injection Molding Nozzle for Hot-Runner System - A hot-runner system having a manifold and a nozzle, wherein the manifold or nozzle or both may be multi-material apparatuses of unitary construction. The nozzle may be thermally graded for temperature transmission between a heating sleeve and the melt. The nozzle may also include a melt flow channel apparatus that alters the flow of the melt before entering the mold. The nozzle and manifold may have a unitary construction that reduces fitting problems between the two apparatuses. | 06-13-2013 |
20130287884 | Mold-Tool System Including Body Having A Variable Heat Transfer Property - A mold-tool system ( | 10-31-2013 |
20140327173 | REDUCING CROWN FLASH IN INJECTION-MOLDING PROCESSES - Crown-flash-reduction systems, methods, and apparatuses for actively reducing the likelihood of formation of crown flash on injection-molded objects. The active reduction includes moving at least one of a valve member and a mold gate periphery in a manner that actively weakens or separates molding material present in a molded object from molding material present in the closed mold gate prior to or in conjunction with de-molding the molded object. | 11-06-2014 |