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7323126 |
Method for forming a foamed product integral with a sheet of covering material
A method for forming a foamed product integral with a sheet of covering material utilizing a forming apparatus which comprises a first die, a second die housed within the first die and having...
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7305308 |
Gas flow method for detection of preform defects based on transient pressure measurement
Method and apparatus to detect and characterize a defect in a fiber preform residing in a preform-receiving cavity of a mold or simulated mold of the type used for liquid composite molding (e.g.,...
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7300611 |
Capacitance controlling process
Process for controlling the capacitance value (C 1 ) of a tubular sheath ( 1 ) formed by extrusion of an insulation compound ( 2 ) on an electrical cable ( 3 ) in an extrusion head ( 4 ),
a...
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7255818 |
Process control for gas-assisted injection molding applications
A method and system for controlling a fluid-assisted injection molding process for producing a molded plastic article. The fluid can be gas, water or another fluid. One or more pressure transducers...
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7096730 |
Measurement systems
An assembly that can be used in conjunction with a resin moulding apparatus includes means defining a chamber containing a pressure sensor, and an entry passage leading upwardly into the chamber....
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7090791 |
Extrusion molding process
A molding process is disclosed in which an extruded column of plastic is introduced into a mold cavity having a predetermined surface profile. A region of negative air pressure is created inside...
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7074028 |
Injection molding machine having a freely rotatable screw
By starting injection, resin pressure in front of the check valve is raised, and the check ring moves backward. Pressure of resin accumulated between flights of the screw prevents the check ring...
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7070720 |
Die-expanded molding apparatus and method for synthetic resin, and die-expanded molded foam obtained thereby
A die-expanded molding apparatus comprising starting material bead supply for supplying beads on a current of air from a tank through a packer into a cavity formed by a core and cavity molds; a...
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7056466 |
Method of manufacture medical devices employing microwave energy
An apparatus and method for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired...
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6932102 |
Device for regulating the flow rate and/or the pressure of a fluid
The present invention relates to a device for regulating the flow rate and/or the pressure of a fluid transferred from a high-pressure reservoir (H) to a reservoir (S). A first valve ( 1 ) provided...
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6929763 |
Injection molding method
The invention provides an injection molding method comprising supplying a gas into a molten resin in a plasticizing cylinder and injecting the molten resin having the gas dissolved therein, wherein...
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6922608 |
Method and apparatus for lay flat control in an extruded film production line
An apparatus for producing an extruded film tube and supplying said tube to a collapsing and roller assembly includes a die for extruding a molten material in the form of a tube which is in a...
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6916165 |
Device for determining the operational state of an extruder
The invention relates to a device for determining the operational status of an extruder that is used for the productive of a plastic profile. At least one measuring device for determining the...
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6913719 |
Device and process for injection molding of hollow plastic parts
Device and process for injection molding of molded parts made from plastic material having at least one cavity, which has means for injecting plastic melt into the cavity of an injection-molding...
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6884374 |
Suction control in a suction/blowing mold system
A plastic hollow preform is drawn through a mold passage formed in a closed mold by applying a generally constant suction to a downstream end of a conduit having an upstream end connected to an...
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6855280 |
Method for injection molding of plastic materials using gas holding pressure in mold
A system and process for gas-assisted injection molding of plastic materials using gas holding pressure in the mold cavity. An infinitely controlled gas pressure valve is utilized to provide...
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6802995 |
Internal bubble cooling control system and method
An internal bubble cooling air control system in a blown film apparatus has sensors arranged to increase response time and reduce interference, and includes a high speed valve for fast actuation of...
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6800226 |
Method and device for the production of an essentially continous fine thread
The invention relates to a method and a device for the production of essentially continuous fine threads made of meltable polymers. The polymer melt is spun from at least one spin hole ( 5 ) and...
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6773739 |
Method and apparatus for extrusion of food products including back pressure valve/diverter
An extruder system ( 10, 124 ) for the processing of feed materials is provided including an extruder ( 12 ), adjustable back pressure valve assembly ( 14 ) and a superatmospheric post-extrusion...
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6709611 |
Method for making, by blow moulding, plastic hollow bodies, device and installation therefor
To blow plastic hollow bodies, each mold ( 7 ) has its respective compression chamber ( 21 ) connected to it, constituted by a cylinder ( 20 )-piston ( 19 ) assembly; pressure is initialized in the...
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6682670 |
Method of production blow-molded synthetic resin articles
A method of blow-molding synthetic resin articles in which an image of an actual article is produced by blow-molding is displayed. A wall thickness control curve on a display screen of a computer...
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6673277 |
Method of manufacturing a light guide
A method of manufacturing light guide by filling a polymer tube with a monomeric mixture then pressurising and heating the full length of the polymer tube to initiate and maintain polymerisation in...
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6669459 |
Electric injection molding machine for controlling injection of electric injection molding machine
An electric injection molding machine capable of maintaining a quality of molded articles and capable of minimizing weight variation of molded articles. An electric injection mechanism injects...
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6656396 |
Method for producing a particularly dimensionally stable cable set, as well as a foaming tool for producing such a cable set
For the production of a particularly dimensionally stable cable set, the single conductors ( 22 ) of the cable set are initially inserted into a cavity ( 8 ) of a foam tool ( 2 ) and a foaming...
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6613254 |
Method for making extruded, oriented fiber
The present invention includes processes for making fibers, which processes include an extrusion step wherein molten polymers are extruded through an extrusion die, thereby forming at least one...
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6585505 |
Machine for proportionally controlling fluid delivery to a mold
In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt...
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6576172 |
Method of manufacturing sound-proof products
A processed material in which a fibrous binder is mixed with chip-like solid matters such as soft urethane foam is quickly injected into a preform mold having a flat molding surface with a uniform...
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6572798 |
Apparatus and method for spinning a multifilament yarn
An apparatus and method for spinning a synthetic yarn, wherein a heated polymeric melt is extruded through a spinneret and the resulting filaments are combined and wound to a package by means of a...
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6531077 |
Method and apparatus for extrusion of expanding water holding products such as foodstuff particles or feeding stuff pellets
In the extrusion of feed-stuff pellets and relevant consumer products, the extruded products are subject to expansion as a result of the boiling of their water content when the products, after...
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6511618 |
Control for operating actuators in an injection molding machine
A method for operating actuators, such as pneumatic valves, in an injection molding machine especially for CD or DVD discs, or other molded articles. The timing of auxiliary processes (such as...
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6478992 |
Extrusion molding method for a thin tube
An extrusion molding method including plasticizing and kneading a raw material ( 1 ), composed of a synthetic resin material having high heat-resistance and strength, extruding the material from a...
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6451230 |
Method for injection molding molded parts from thermoplastic and added fluid
A method for injection molding plastic molded parts from thermoplastic, comprises the following steps: the production of a thermoplastic melt ( 1 ) through the rotation of a plasticizing and...
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6439984 |
Molded non-abrasive substrate carrier for use in polishing operations
Thin, planar substrates are carried on a substrate carrier ( 20 ) through a polishing operation. The substrate carrier ( 20 ) is injection molded or modified-injection molded from a plastic...
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6423261 |
Blown film extrusion apparatus and method with improved collapsing frame
A blown film extrusion apparatus and method is provided including a tube position transducer transmits interrogating pulses to the extruded film tube and produces a position signal corresponding to...
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6416692 |
Sewer system pipe repairs
A method of repairing leaking underground pipes, particularly gravity-flow sewer pipes, without excavation, by using a flexible liner tube containing a fluid under sufficient pressure to exclude...
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6401491 |
Final blow/finish cooling valve function monitor
Apparatus for monitoring application of air through a dual-stage blowhead to blow mold a container includes a first solenoid valve for applying final blow air through the blowhead to a container in...
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6372161 |
Operation of a mold block with air flow control
A mold block which is used in a moving mold tunnel comprises first and second mold block sections which meet at their parting faces to close the mold block. Each mold block section has a product...
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6365075 |
Method and apparatus for controlling torque of an injection molding machine
A metering controller capable of making a metering time constant and kneading of resin uniform. A screw torque STRQ(n) is detected and stored at every processing period from a start of metering as...
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6284171 |
Blow molding process
A blow molding process in which a gas is blown into a parison within a mold to inflate the parison, the parison makes intimate contact with a mold shaping portion to form a hollow molded product,...
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6264874 |
Method of controlling the diameter of a clear extruded tube
A method and apparatus for controlling the diameter of a clear extruded molten tube wherein the extruded tube contains a volume of a clear liquid and the level of the liquid is indicative of the...
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6254368 |
Plastic molding machine
Apparatus for producing plastic film by extrusion includes a plastic extrusion machine having an extrusion screw, a motor for turning the screw, a die connected to the screw barrel outlet, a...
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6251311 |
Optical fibers and processes and apparatus for making the same
A large core polymeric optical fiber having improved light transmitting characteristics includes a cladding filled with a light transmitting core. The core is formed during a polymerization...
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6238603 |
Ware forming method and apparatus
A method and apparatus for removing an item of shaped clay from a mould. The method including holding the piece (14) on a synthetic mould (10), pressing it against a resilient member (18) such that...
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6168408 |
Apparatus for manufacturing composite parts produced by resin transfer molding
An apparatus for manufacturing composite parts produced by resin transfer molding (RTM) is configured to operate in controlled flow-rate mode or controlled pressure mode to use the RTM technique...
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6159400 |
Method for deforming solids in a controlled atmosphere and at adjustable rates, pressures and temperature
A method for forging, or hot working bulk ceramics, including high temperature superconductors and other sensitive materials, under precisely controlled conditions of pressure, temperature,...
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6153132 |
Control method for the manufacture of oriented plastic tubes
A method of expanding a tube of plastics material in which a longitudinally travelling tube is progressively diametrically expanded in internal fluid pressure in an expansion zone between an...
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6144182 |
Motor control method for injection molding machine and motor controller for carrying out the same
The duty of a current to be supplied to an injection motor is calculated on the basis of the ratio between set injection time for which the injection motor operates and molding cycle time, a shaft...
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6096249 |
Method for molding fiber aggregate
This invention provides a method for producing a cushion structure having excellent quality in a short time by the final heat-molding of a fiber aggregate containing binder fibers by compression...
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6033607 |
Method and apparatus for molding fiber mixture
A method and apparatus for molding a cushion member from a fiber mixture by a filling process comprising filling a fiber mixture composed of synthetic matrix fibers and binder fibers dispersed...
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6000831 |
Injection mold data transmission system
The present invention relates to injection mold hot runner control devices and more particularly to an injection molding control device which eliminates the conventional control cables to improve...
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