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7582250 |
Injection molding method and injection molding apparatus
This invention relates to an injection molding method using an injection mold. The method comprises (1) a molten resin injection step for injecting the molten resin from a gate into a cavity, (2) a...
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7391572 |
Hybrid optical/electronic structures fabricated by a common molding process
Disclosed is a method of fabricating a molded structure including both micro lenses and metallic pins. The method comprises the steps of providing a mold apparatus having a set of first cavities...
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7040887 |
Closable nozzle body
A closing element, which has an open position and a closed position and is actuated by an actuating element, is arranged in the nozzle channel of a nozzle body. In the closing position, the closing...
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6899833 |
Method of manufacturing a molded article using a variable feedback molding system
A method of manufacturing a molded article from a settable mixture includes the steps of in-taking a plurality of components into a plurality of separate material discharge containers sized...
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6793861 |
Optimization of in-mold coating injection molded thermoplastic substrates
The present invention is a process for producing an injection-molded thermoplastic workpiece having a thermoset coating bonded thereto, comprising the steps of introducing in three stages into a...
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6767496 |
Method and system for the production of a plastic needle
A method and a system is provided for producing a needle of plastic, as well as the needle of plastic which includes a needle for medical purposes. The method for producing the needle includes...
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6558605 |
Method of molding large thin parts from reinforced plastic material
Reinforced plastic pellets comprise thermoplastic material and reinforcement particles that are less than 15% of a total volume of the pellets, and at least 40% have a thickness of less than 50...
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6440338 |
Method, apparatus, and medium for forming molding condition and molding machine
A resin flow analysis in a die is performed by CAE or the like to obtain a resin pressure curve at a resin inlet port or a resin pressure curve at a nozzle end portion of a molding machine....
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RE37719 |
Optical data recording system and method of production of recording medium
A transparent substrate and a method of producing the same suitable especially for an optical system for an optical data recording medium using a linearly polarized light as a data reading light...
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6372162 |
Injection molding of oral brush bodies
A method for making an oral brush body using an injection molding apparatus includes injecting polymer into a mold cavity at a pressure no greater than about 250 psi and in an amount sufficient to...
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6060005 |
Low pressure method and apparatus for injection molding a plastic article
A method for injecting a plastic material into a mold cavity to precisely fill the mold cavity under low pressure and to avoid packing the mold cavity with plastic material. The plastic material is...
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6056902 |
Method and apparatus for molding a plastic article including injecting based upon a pressure-dominated control algorithm after detecting an indicia of a decrease in the surface area of the melt front
A method for injecting a plastic material into a mold cavity to precisely fill the mold cavity under low pressure and to avoid packing the mold cavity with plastic material. The plastic material is...
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6030567 |
Process for producing sandwich-shaped synthetic resin-molded article
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5968439 |
Method for simultaneous injection and compression
Method and apparatus for molding an article by forming an oversized mold cavity with respect to opposing relatively movable mold members, introducing material into the oversized mold cavity and...
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5922266 |
Injection molding
Method and apparatus for forming an article having a prescribed volume and mass from a molten plasticized resin using an injection molding machine by (a) forming an oversized mold cavity with...
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5906784 |
Curable epoxy resin compositions
Epoxy resin compositions, comprising (a) an epoxy resin which is liquid at below 160° C. and which has an average of more than one epoxy group in the molecule, (b) a di- or polycarboxylic...
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5902525 |
Method of molding a plastic article including injecting based upon a pressure-dominated control algorithm after detecting an indicia of a decrease in the surface area of the melt front
A method for injecting a plastic material into a mold cavity to precisely fill the mold cavity under low pressure and to avoid packing the mold cavity with plastic material. The plastic material is...
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5853630 |
Low pressure method for injection molding a plastic article
A method for injecting a plastic material into a mold cavity to precisely fill the mold cavity under low pressure and to avoid packing the mold cavity with plastic material. The plastic material is...
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5835379 |
Apparatus and method for analyzing a process of fluid flow, an apparatus and method for analyzing an injection molding process, an injection molded product, and a production method of the injection molded product
The present invention presents a fluid flow process analyzing apparatus and method, an injection molding process analyzing apparatus and method, an injection molded product and an injection molded...
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5764521 |
Method and apparatus for solid prototyping
An improved extrusion-based manufacturing system includes one or more extruders, with each extruder containing at least two stages of increasing pressurization. In a preferred embodiment, a first...
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5762855 |
Method of using a sequential fill valve gated injection molding system
A system for injection molding of large components is disclosed that provides for the production of higher quality large molded components with a reduction in both molding cycle time and molding...
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5728329 |
Method and apparatus for injecting a molten material into a mold cavity
A method of injection molding for use with an injection molding machine includes: a) generating pressurized gas and pressurized moisture within molten plastic as plastic pellets are plasticized in...
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5716561 |
Injection control system
A method of injection molding for use with an injection molding machine (10) includes: (a) generating pressurized gas and pressurized moisture within molten plastic as plastic pellets are...
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5670233 |
Acoustic window and method for making the same
A method for making polyurethane acoustic windows. A molding material is lied to a reservoir connected to the bottom of the mold to fill the mold under the influence of a vacuum applied at the top...
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5656228 |
Injection molding method
In an injection molding method, a resin is injected into a cavity of a mold in such a manner that a pressure ratio of a cavity surface pressure in the cavity to a cylinder pressure of an injection...
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5643527 |
Method of injection molding
An injection mold apparatus has a core and cavity halves. One or more gas poppet valves are affixed in the injection mold either in the movable and/or in the stationary halves of the mold. The...
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5639405 |
Method for providing selective control of a gas assisted plastic injection apparatus
A control system for a gas assisted injection molding apparatus which provides precise and reproducible indication of when the injection of plastic is to terminate and when the pressured gas is to...
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5612067 |
Molding apparatus for producing synthetic resin molded product
A molding apparatus for producing a synthetic resin molded product including a forming mold with a molding cavity, a gate communicating with the cavity, and an overflow chamber communicating with...
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5556650 |
Injection molding system utilizing primary and secondary resin flow paths
A system for injection molding a hollow plastic article utilizing a secondary resin flow path which communicates one portion of an article-defining cavity with a second portion of the...
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5554326 |
Control method of injection molding machine
A control method of an injection molding machine includes the steps of advancing a screw 2, injecting and filling the resin in a barrel cylinder 3 into a mold 4 to fill the mold, and then applying...
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5523044 |
Process for molding epoxy resins with coarse decorative particles
The present invention provides a process for the manufacture of a moulded article which comprises introducing a curable epoxy resin composition to a mould which is at a temperature high enough to...
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5505895 |
Process for making moulded articles of epoxy resin compositions
A process for making a cured plastics moulding by introducing a pre-heated curable resin composition to a hotter mould which is at a temperature high enough to initiate curing of the resin, and...
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5474733 |
Screw driving method for injection molding machine
A screw driving mechanism E which uses a hydraulic cylinder (main cylinder) 2 arranged on the same axis with respect to a screw 3 so as to allow the screw 3 to perform frontward and rearward...
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5460768 |
Process for producing container for photographic film
A process for producing a container is disclosed including molding the container using an injection molding machine with a multicavity mold having not less than 12 cavities by charging a hot runner...
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5441679 |
Method of assembling a value head
A valve head includes an annular valving plate made of a resilient material and a valve guide including projecting legs with elongated slots designed to couple with fins located on the valve body...
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5441680 |
Method and apparatus for injection molding
A method of injection molding for use with an injection molding machine includes: (a) generating pressurized gas and pressurized moisture within molten plastic as plastic pellets are plasticized in...
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5417916 |
Injection molding method utilizing primary and secondary resin flow paths
A method and system for injection molding a hollow plastic article utilizing a secondary resin flow path which communicates one portion of an article-defining cavity with a second portion of the...
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5409659 |
Hollow injection-molding method and pressurized fluid introducing and discharging apparatus therefor
The invention relates to a hollow injection-molding method of forming a hollow portion in molten resin in a mold cavity by introducing a pressurized fluid, and also to a pressurized fluid...
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5401459 |
Gas-assisted injection molding of hollow ribbed article
Improvements in articles, made by gas assisted injection molding of polyethylene and other materials, such as large arch shaped subsurface leaching conduits, and the processes by which they are...
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5387391 |
Process of making a resin panel
A structurally reinforced panel for a vehicle body includes an injection molded resin panel having an integrally molded hollow reinforcement truss extending across the panel.
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5364252 |
Gas injector with retractable nozzle for assist of plastics injection molding
A gas injector having a retractable nozzle with linear gas feed passage therethrough for a gas assist plastics injection molding machine. The injector interfaces with the injection molding tool and...
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5342191 |
Plastics injection molding device with multipositioning construction for gas assisted molding
Gas transmission plugs are placed in a supporting strip portion in plastics injection mold tooling so that an appropriate gas assist injection location can be readily selected, and mated, with a...
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5324189 |
Apparatus for injection molding of a plastic article having a hollow rib
Apparatus for injection molding a plastic article having a hollow rib portion utilizing a spill cavity. A process includes the steps of sequentially injecting fluent plastic and gas into a mold...
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5262105 |
Method for molding hollow shaped bodies
Molding a hollow shaped body which has a skin made of a synthetic resin and a hollow portion therein by a mold block provided with a mold cavity in the shape of the hollow shaped body, a tub into...
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5252287 |
Method of injection molding hollow articles
A method and apparatus for injection molding of thermoplastic material to form a hollow article in a closed mold in which a molten thermoplastic material is introduced from an injection nozzle into...
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5246646 |
Injection molding method
A method and apparatus for making a plastic injection molded part with a smooth surface or skin and a hollow core wherein thermoplastic material is injected as a molten stream into the mold cavity...
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5232654 |
Injection molding method for manufacturing a thermoplastic part free from sink marks using a void inducing member
When injection-molding a molten thermoplastic resin into a molding having different thicknesses, a void inducing member is set in a cavity corresponding to heavy sections. Then gas pressure is...
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5221509 |
Method and apparatus for injection and compression molding
An injection and compression molding apparatus and a method include the steps of supplying molten resin by injecting it into a cavity formed by molds and compressing the resin by applying pressure....
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5219512 |
Improved pressure-holding chamber type injection molding process and apparatus for injection molding of products
A system of injection molding by an injection machine with a mold includes conventional fundamental steps including a material plasticizing and metering step, a material injecting step and a...
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5204051 |
Process for the injection molding of fluid-filled plastic bodies
The invention relates to a process for the injection molding of fluid-filled plastic bodies and a device to carry out this process, wherein a pressurized, flowable plastic melt is first injected by...
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