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Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8033820 | Hot runner system for injection molding machine A hot runner system for an injection molding machine capable of increasing durability of the nozzle includes a manifold having a resin injecting hole extending therethrough in its inner portion, a nozzle having a piston guide bushing formed at its upper end inserted... | 10/11/2011 |
| 7704069 | Injection molding apparatus having swiveling nozzles Injection molding apparatus has upper and lower mold halves that split along the center line of the parison cavity and the gate opening leading thereto. Each hot melt injection nozzle is received within a tubular insert cup having a reduced diameter tip that is seat... | 04/27/2010 |
| 7435078 | Nozzle sleeve for an injection molding apparatus An injection molding apparatus that includes a hot runner and a mold. The hot runner includes at least one nozzle that engages a nozzle-receiving cavity of the mold. The molding apparatus further includes a nozzle sleeve surrounding a portion of the nozzle and havin... | 10/14/2008 |
| 7393479 | Injection molding three-way shut off valve An injection molding three way shut off valve assembly and method in which the three way valve assembly is configured to be disposed to control a flow of a molten material from an injection unit to a runner system. Preferably, the valve assembly has a valve plunger ... | 07/01/2008 |
| 7342206 | Tailored heat transfer layered heater system A tailored heat transfer layered heater system is provided that comprises a target part defining a room temperature periphery and a layered heater disposed around or within the target part, the layered heater comprising a substrate having a room temperature peripher... | 03/11/2008 |
| 7331482 | Dispense pump with heated pump housing and heated material reservoir A heated dispense pump overcomes the limitations of conventional systems providing for reliable and efficient heating of the dispensed material in a system that is compact, lightweight, and accurate. A pump housing and cartridge body are formed of a thermally conduc... | 02/19/2008 |
| 7329118 | Nozzle and apparatus for injection molding An expansion nozzle for conducting melt from a floating manifold to a mold assembly comprises a bushing having a bushing flange and spigot having a passage therethrough joining a nozzle inlet and an outlet, a head having a seating surface and a bore through the head... | 02/12/2008 |
| 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 |
| 7303718 | Injection molding apparatus and injection molding method A space 12 is formed at a tip portion of a nozzle 1 so as to decrease a thermal transfer of the nozzle 1. Alternatively, a center portion of one of a semi-spherically protruded surface of the tip portion of the nozzle 1 and a semi-spheric... | 12/04/2007 |
| 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 |
| 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 |
| 7168447 | Fluid distribution unit for dividing a stream of fluid into a plurality of partial streams The invention relates to a liquid distribution unit (10, 20) for dividing a liquid current into a plurality of partial currents. Said unit comprises at least one liquid inlet (13, 23) for the supplied liquid current, a plurality of liquid outlets (1... | 01/30/2007 |
| 7165958 | Apparatus for adjustable hot runner assembly seals and tip height using active material elements Method and apparatus are provided for sealing interfaces within an injection mold having a first surface and a second surface includes an active material actuator configured to be disposed in a manner suitable for generating a force between the first surface and the... | 01/23/2007 |
| 6969248 | Injection valve, especially for a mould for an optical lens An injection valve includes an injection channel (17) that opens outwards via an outlet (18) and has a specific inlet for the arrival of the molding material (19A) remote from the outlet (18), in addition to a slider unit (20) that... | 11/29/2005 |
| 6688875 | Nozzle end for multiple tipped injection molding nozzle A nozzle end is provided for removable mounting to a nozzle body for use in multiple-tipped molding applications such as edge-gated systems. The nozzle end is made of a highly thermally conductive material and is preferably inserted at least partially ins... | 02/10/2004 |
| 6644956 | Injection molding machine An injection molding machine includes an injection chamber unit with a horizontal channel, a vertical channel, and a transitioning passage interconnecting the horizontal and vertical channels. The transitioning passage has an innermost turning side and an... | 11/11/2003 |
| 6530770 | Mold nozzle tip lock A mold assembly is made up of a nozzle tip and a nozzle tip receiving housing. The nozzle tip has an outwardly projecting shoulder and a threaded base and the housing has a hollow stem with an internal recess and a threaded socket for receiving the base o... | 03/11/2003 |
| 6506045 | Injection nozzle for plastic substances A nozzle, for the injection of molten plastics, includes a rear central portion terminating with a planar surface, and an outer annular element terminating with a corresponding planar surface on its rear side. The terminal planar surface of the central po... | 01/14/2003 |
| 6478567 | Nozzle assembly for injection molding A three piece nozzle assembly for injecting molten plastic in an injection molding machine carrying out a high pressure, high volume continuous molding process to mold thin walled parts. A nozzle housing has an internally threaded dual diameter bore in on... | 11/12/2002 |
| 6402503 | Plastic injection molding apparatus Injection molding apparatus (10) for molding a thermoplastic article (A) from a moldable thermoplastic material. The molding apparatus includes a core pin (12) around which the article is formed in a cavity that is defined by separable mold halves (14, 16... | 06/11/2002 |
| 6382528 | Mixer to improve melt homogeneity in injection molding machines and hot runners In an injection molding machine a mixer is provided that reduces the flow imbalances inherent in the melt as the flow branches within a manifold or other part of the injection machine. The mixer increase melt homogeneity by gradually mixing and changing t... | 05/07/2002 |
| 6379143 | Injection mold An injection molding apparatus for molding a plastic article by fitting an upper mold and a lower mold by pressing and injecting a molten resin through a pin point gate employs a net groove formed at the upper mold and/or the lower mold, said net groove c... | 04/30/2002 |
| 6277308 | Method and apparatus for precision injection molding A method and apparatus for injection molding of a fiber optic ferrule including the use of adjustable core and receiver members adjustable from the exterior of the mold to precisely locate a projecting wire member in a mold where a score pin defines an in... | 08/21/2001 |
| 6245278 | Injection nozzle and method The injection nozzle includes a longitudinal flow channel, a plurality of angular channels extending from the longitudinal flow channel (1) in a first direction at an acute angle with respect to the longitudinal axis of the nozzle, and (2) in a second dir... | 06/12/2001 |
| 6200126 | Injection moulding machine The injection moulding machine has a plasticizing cylinder, arranged in whose interior there is a worm with an axial through-hole. The interior of the plasticizing cylinder is connected to a nozzle opening via a cylinder chamber. Operating in the cylinder... | 03/13/2001 |
| 5980234 | Blow mold apparatus for minimal gate An improved mold apparatus (10) includes a cutout (30) between the nozzle cap sealing surface (32) and the injection mold cavity (14) configured for receiving the tip (38) of an insert (20). The cutout (30) shortens the material passage (24) leading to th... | 11/09/1999 |
| 5885316 | Nozzle tip for glass injection cartridge A nozzle tip for a glass injection cartridge loaded with a rod-shaped glass material and having a heater for melting down the glass material into a molten state for injection into a mold, the nozzle tip containing: a) a nozzle body having a conical shape conve... | 03/23/1999 |
| 5851571 | Needle valve nozzle for injection molds and valve needle A needle valve nozzle (1) with injection mold (2) has a channel (11) for injection molding of flat workpieces form its narrow side. The channel (11) lies in the interior of the valve needle (10) belonging to the nozzle and extends over a partial longitudi... | 12/22/1998 |
| 5851558 | Foil-decorating injection molding machine A foil decorating injection molding machine is provided with an injection mold having a male mold and a female mold. The male mold is provided with a hot runner, a reversing passage connected to the hot runner, and gates connected to the reversing passage... | 12/22/1998 |
| 5811132 | Mold for semiconductor packages An improved mold for forming a semiconductor package, having a molding compound injection gate having a height not greater than the thickness of the lead frame of the semiconductor assembly placed in the mold.... | 09/22/1998 |
| 5804228 | Minimum vestige nozzle assembly for plastics injection molding A hot tip nozzle assembly for injection molding plastic components comprises a nozzle housing defining a hot runner passage and a nozzle tip section which is received in the hot runner passage. The nozzle tip section defines a hot runner tip passage in fl... | 09/08/1998 |
| 5716540 | Apparatus and method for producing center gated lens molds for contact lens manufacture A method and apparatus for the manufacture of lens molds used in the formation of optical contact lenses, the apparatus including a center gate aligned on the central axis of the lens mold cavity for delivery of the melt polymer in an axisymmetrical manne... | 02/10/1998 |
| 5667819 | Apparatus for injection molding of multi-layer objects A method of injection molding of workpieces, formed of at least two different layers, and which includes forming at least one layer from lacquer, with the apparatus for effecting the method including at least two injection molding devices for forming melt... | 09/16/1997 |
| 5650181 | Injection molding die for producing plastic filter A meshed plastic filter of a narrow-pitch net including a net and a frame in a unitary body is produced in either a square or a circular overall shape, and has diverse applications, such as a filter or sieve for gasoline or oil, a dust collector filter an... | 07/22/1997 |
| 5609893 | Probe assembly for injection molding apparatus A temperature and molding material pressure compensated probe for use in injection molding apparatus. The probe includes a two-part telescoping body with a molding material filled space therebetween. Longitudinal thermal expansion which formerly presented... | 03/11/1997 |
| 5484275 | Nozzle construction for a triple stack molding arrangement A triple stack mold which is operated by a standard mold press and which presents three molding interfaces. Molten plastic is supplied to all molding cavities in equal amounts through a distribution system that includes manifolds in the mold components wh... | 01/16/1996 |
| 5380187 | Pre-plasticization type injection molding machine A pre-plasticization type injection molding machine is equipped with a plasticizing part for plasticizing synthetic resin material by turning a screw in a heating cylinder and an injection part for injecting the plasticized material through a nozzle by ad... | 01/10/1995 |
| 5374183 | Molding apparatus with rotatable sprue bushing A molding apparatus includes a rotatable sprue bushing mounted in mold halves and formed with a sprue therein for introducing material into a mold cavity. The sprue communicates with a gate, as an outlet of the sprue, located at a position radially displa... | 12/20/1994 |
| 5370523 | Triple stack molding arrangement A triple stack mold which is operated by a standard mold press and which presents three molding interfaces. Molten plastic is supplied to all molding cavities in equal amounts through a distribution system that includes manifolds in the mold components wh... | 12/06/1994 |
| 5358396 | Multi-functional mould A multi-functional mold which is used for encapsulating chips placed on lead frames is characterized by a chamber arranged in one of the mold halves in which an insert can be replaceably arranged. Depending on the use of the mold in the context of the so-... | 10/25/1994 |
