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Class 425/588 - Plural mold cavities


Subclass of Class 425 - Plastic article or earthenware shaping or treating: apparatus
Definition: Apparatus including more than one shaping cavity in the
No. of patents: 423
Last issue date: 11/15/2011


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NumberTitleIssue Date
8057217Apparatus and method for injection molding an intraocular lens device
Apparatus and methods for injection molding intraocular lenses includes an embodiment having first and second runners extending into first and second optic cavities of a mold configured to make a dual optic lens device. ...
11/15/2011
7938642Resin molding apparatus
A resin molding apparatus capable of enhancing transfer accuracy, reducing the cost of a molding apparatus, and shortening a molding cycle. The resin molding apparatus includes a first mold; a second mold disposed in opposition to the first mold; a transfer plate (
05/10/2011
7850443Apparatus for injection molding
An apparatus for injection molding using a stack mold comprising first and second mold assemblies interposed between a movable platen and a stationary platen comprises at least one centering device for coupling movement of the movable platen to intermediate mold mem...
12/14/2010
7833008Injection molding machine with vertical plasticizing unit
An injection molding machine includes a clamping unit constructed for support of at least two molding tools to provide at least two different cavities. A first plasticizing unit is provided for charging one of the cavities in one of the molding tools, and a second p...
11/16/2010
7766648Coating in multiple injection molding part cavities
A molding apparatus includes a mold (12,14) defining a plurality of mold cavities (34,36). Fluidly connected to the mold cavities (34,36) are one or more first composition injectors (30) and one or more second composition injectors (32...
08/03/2010
7452202Machinery for the molding and assembling of an assembled object
The invention concerns machinery for molding and assembling of at least two part objects and of plastics, e.g. two ball shells, which can be assembled to a hollow ball, as molding and assembly can take place in the same tool and continuously in the same work procedu...
11/18/2008
7426998Molding die assembly for rubber members and rubber member produced thereby
A molding die assembly includes an upper die and a lower die, wherein at least one of the upper and lower dies is provided with a cavity corresponding to the shape of a rubber member to be molded, wherein at least one of the upper and lower dies is provided with an ...
09/23/2008
7422425Drive system for a knockout apparatus for a patty-forming machine
A knockout drive system for a food patty molding machine includes an electric motor; a rotary-to-linear motion converting apparatus operatively connected to the electric motor; and at least one knockout member operatively connected between the rotary-to-linear motio...
09/09/2008
7390184Dual injection manifold
A co injection manifold assembly for injecting two different materials into a common mold cavity includes a housing that defines a first passage, a second passage and an outlet. The first and second passages communicate with a bore having a valve member for controll...
06/24/2008
7364683Rotary automatic transfer rail for injection molding
Methods and assemblies related to a rotary automatic transfer rail for injection molding are disclosed. In one aspect, the invention includes a mold assembly. The mold assembly may include first, second, and third mold plates. The mold plates may be positioned gener...
04/29/2008
7361012Multiple-level stack mold apparatus
The present invention is a multiple-level stack mold for balancing the injection of molten plastic from an injection molding machine to a plurality of cavities, at least one cavity on each level of the multiple-level stack mold, for producing plastic parts facing in...
04/22/2008
7338626High cavitation, low tonnage rubber mold machine and method
A rubber injection molding apparatus and method for simultaneously molding a plurality of work parts (40) in separate molds (30) using a single, vertically oriented press machine (22). A clamping mechanism (52) is responsive to the vertic...
03/04/2008
7331779Concurrent cooling mold
This is an apparatus and method of reducing the cycle time needed to produce molded parts. The cycle time is reduced by moving the molded part while still encapsulated within the mold cavity and core away from the injection position to one or more cooling positions ...
02/19/2008
7320589Hot runner manifold plug for rheological balance in hot runner injection molding
A method and apparatus for rotating a cross-sectional asymmetrical condition of a laminar flowing material is provided in a hot runner system for supplying a laminar flowing material. The hot runner system has (i) an upstream melt passage, (ii) a pair of intermediar...
01/22/2008
7316561Three-piece molding manifold
A hot runner molding manifold has a first half having flow grooves, a cover piece having flow grooves complementary to the flow grooves of the first half, and a second half securable to the first half and having a cavity for receiving the cover piece. The flow groov...
01/08/2008
7306445Mold closing device for an injection molding machine
A mold closing device of an injection molding machine for producing plastic parts made of two or more plastic components includes a central mold carrier element which is arranged between two outer mold mounting plates and has two or four opposing mold mounting areas...
12/11/2007
7306454Front-mountable injection molding nozzle
An injection molding apparatus includes a first, rear-mounted nozzle that is coupled to a manifold for receiving a melt stream therefrom. A second, front-mounted nozzle is coupled to the first nozzle by a nozzle link that is provided between the first and second noz...
12/11/2007
7303381Device for manufacturing optical disc, method of manufacturing the same, and optical disc
In an optical disc molding device, a heating medium from a low-temperature controller is made to flow in temperature controlling flow passages (passages 3a) formed at locations corresponding to boundary parts of two fixed molds 7 mounted paralle...
12/04/2007
7299544Apparatus for separating cull of semiconductor package molding system
Disclosed is an apparatus for separating culls coupled to a lead frame when a semiconductor chip is molded. The apparatus includes a lower plate, on which culls coupled to a lead frame are placed, an upper plate pressing culls placed on the lower plate in order to s...
11/27/2007
7294297Method and device of the production of brushes
In a method for producing a bristle from thermoplastic polymers through injection molding, the molten polymer mass is injected under pressure into a bristle-molding channel of predetermined length having a predetermined cross-section along this length and the channe...
11/13/2007
7291305Side shuttle apparatus and method for an injection molding machine
Servo side shuttle apparatus and method for a molding machine includes structure and/or steps whereby a shuttle plate has a portion always disposed inboard of a perimeter of a first mold half of the molding machine. Drive structure is preferably configured to drive ...
11/06/2007
7287976Tool insert for the gate of a hot-channel nozzle for an injection molding machine
Tool insert for the gate of a hot-channel nozzle for an injection molding machine, which tool insert connects to the front (tool-side) part of the hot-channel nozzle and in turn is capable of insertion into a corresponding recess of the tool. The tool insert consist...
10/30/2007
7281922Continuous pallet production apparatus
Disclosed is an injection molding apparatus that includes an extruder configured to produce a continuous flow of molten plastic. The injection molding apparatus also includes a plurality of mold assemblies and a delivery system that provides an uninterrupted transfe...
10/16/2007
7265453Semiconductor component having dummy segments with trapped corner air
A semiconductor component includes a leadframe, a die, upper and lower body segments encapsulating the die, and dummy segments on the leadframe. The dummy segments are configured to vent trapped air in a molding compound during molding of the body segments, such tha...
09/04/2007
7261553Crossover nozzle system for stack molds
A crossover nozzle system for transferring molten plastic from an inlet at the center of the stationary platen of an injection machine to the main manifold of the molding chambers of the stack molds of the injection molding machine. The nozzle system has a sprue bar...
08/28/2007
7255555Small pitch molding manifold
An injection molding apparatus for small pitch molding includes a plurality of mold cavities having a small pitch therebetween. The injection molding apparatus includes a manifold for delivering melt to a sub-manifold. The sub-manifold including at least one upstrea...
08/14/2007
7252498Hot runner nozzle with melt sealing
A modular hot runner nozzle having a variable length includes a first nozzle portion and a second nozzle portion provided in series between a manifold and a mold gate of an injection molding apparatus. The first nozzle portion and the second nozzle portion having re...
08/07/2007
7241133Adjustment device for a movable wall of an injection molding machine
A device includes a sliding base, supporting posts, and hydraulic oil; the sliding base has cavities, an oil passage communicating with the cavities, and oil seals secured around respective cavities, and it is movable along a guide rail secured on a bed of an inject...
07/10/2007
7229276Apparatus for manufacturing outer tube of injector
The present invention provides a manufacturing method for manufacturing an outer tube of an injector having a barrel portion having an excellent circularity, while preventing generation of distortion or warp. A molten resin is injected into a cavity 17 of a m...
06/12/2007
7217112Mold for intraocular lens
The invention is a mold and method for using the mold to make a multi-stage intraocular lens. The mold is provided with a gate in fluid communication with a lens portion and/or haptic portion of the mold core. In addition, a gasket is provided around the mold core. ...
05/15/2007
7214053Hot channel multiple injection molding die
In a hot channel multiple injection molding die, the molding spaces (15) for the workpieces are each connected to two injection nozzles (9) and the injection nozzles (9) are each connected to two molding spaces (15). The injection nozzles...
05/08/2007
7213508Molded egg-shaped food product, and method and mold for making same
A mold for making an egg-shaped food product includes top and bottom mold halves which cooperate when joined to form an egg-shaped interior mold cavity adapted for receiving a liquid foodstuff. The top and bottom mold halves define a plurality of thermal transit hol...
05/08/2007
7204943Method and apparatus for handling parts ejected from an injection molding machine
This invention relates to a method and apparatus for handling parts ejected from an injection molding machine (10). More particularly, in one aspect, the invention is directed to a system (20) whereby data molded into the ejected part is used to provid...
04/17/2007
7192269Device for the injection moulding of moulded bodies made from plastic
A device for the injection moulding of moulded bodies made from plastic is disclosed, comprising an injection moulding unit (1) and a tool (2) dedicated thereto. At least two cavities (11, 12), corresponding to the dimensions of the moulded body...
03/20/2007
7186113Rotary device for a horizontal injection molding machine
A rotary device for a horizontal injection molding machine includes a base and a rotary table supported on the base for rotation about a vertical rotation axis upon operation of a drive. The drive includes a shaft extending downwards from the rotary table and projec...
03/06/2007
7175418Melt 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
7144537Short shuttle molding system for multi-material molding
An apparatus and method for molding multi-material parts. The mold has a plurality of first mold cavities interspersed alternately among a plurality of second mold cavities. A first molten material is injected into the first mold cavities and solidified. Cores with ...
12/05/2006
7134869Rotary device for a horizontal injection molding machine
A rotary device for a horizontal injection molding machine includes a base plate and a rotary table supported on the base plate for rotation about a vertical rotation axis upon operation of a drive. The drive includes a pivot pin extending downwards from the rotary ...
11/14/2006
7128565Three level stack mold machine
A three level stack mold machine comprising a machine frame, a fixed platen mounted on the frame, guide rails mounted on the frame, a movable platen mounted on the guide rails and two carriages mounted on the guide rails between the fixed platen and the movable plat...
10/31/2006
7128550Injection molding machine
An injection molding machine using a two-disk forming mold, in which two disk substrates molded simultaneously are made uniform without unbalance in weight. The injection molding machine uses a two-disk forming mold. The mold includes two disk molding cavities indep...
10/31/2006
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