And Feeder To Supply Granular Fluent Stock To Charger Patents (Class 425/580)
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Patent number: 8276791Abstract: An exemplary feed copper, configured for introducing plastic granules into a heating cylinder of an injection molding machine, includes a feed duct, a guiding duct communicated with the feed duct, and a sleeve. The sleeve movably wraps around the guiding duct, and have a lateral through hole for conforming with the lateral opening, such that the plastic granules can be accessible via the guiding duct when the lateral through hole is aligned with the lateral opening.Type: GrantFiled: November 4, 2009Date of Patent: October 2, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Chien-Feng Huang
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Patent number: 8162647Abstract: The present invention provides blowing agent introduction systems and methods for introducing blowing agent into polymeric foam processing systems. The methods may involve introducing one or more doses of blowing agent into polymeric material in an extruder during a plastication period of a molding cycle. Prior to introduction, a dose is confined in an accumulator which, for example, has a volume defined between an inlet valve and an outlet valve. A control system may receive inputs related to system parameters (e.g., pressure of polymeric material in extruder, axial position of screw in barrel, whether screw is rotating, and the like) and based on the inputs coordinates operation of the valves to confine and introduce the blowing agent dose(s). The introduction systems may be used in discontinuous plasticating processes, such as injection molding and blow molding, and can be particularly useful in processes that use precise quantities of blowing agent.Type: GrantFiled: October 6, 2006Date of Patent: April 24, 2012Assignee: Trexel, Inc.Inventor: Roland Y. Kim
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Publication number: 20100151075Abstract: An exemplary feed copper, configured for introducing plastic granules into a heating cylinder of an injection molding machine, includes a feed duct, a guiding duct communicated with the feed duct, and a sleeve. The sleeve movably wraps around the guiding duct, and have a lateral through hole for conforming with the lateral opening, such that the plastic granules can be accessible via the guiding duct when the lateral through hole is aligned with the lateral opening.Type: ApplicationFiled: November 4, 2009Publication date: June 17, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: CHIEN-FENG HUANG
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Patent number: 7014448Abstract: A compacting facility for bulk goods is disclosed. In order to generate flakes of homogeneous quality, the bulk good is conveyed to a roller press (4) via a screw conveyor (5). The roller press (4) is supplied with bulk goods of differing quality from two shafts (7,9) positioned one behind the other, the screw conveyor (5) being underfed from the first shaft (9) in the direction of conveyance with granulate, which is not suitable for further processing, arising after the roller press (4) and the rest of the feeding being from the last shaft (7) in the direction of conveyance.Type: GrantFiled: November 16, 2000Date of Patent: March 21, 2006Assignee: Alexanderwerk AGInventor: Axel Eggert
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Publication number: 20010030376Abstract: Molding material consisting of resin coated reinforcing fibers in a molten mass of resin and fibers is prepared at a molding site for controlled supply to a molding machine. A conveying device, such as a pair of pinch rollers, serves to pull fibers from supply spools through guide orifices of a coating die having a chamber within which the fiber is coated with molten resin. Further impregnation of the fibers with resin takes place in the conveying device, which also develops pressure on its output side serving to push the mass of hot resin and fiber into a receiving device for movement to a molding machine. The receiving device may be the feed screw for an injection molding machine or simply a plate movable to and from a compression molding machine. The fibers may be cut into predetermined lengths by a cutting device positioned downstream of the aforesaid conveying device.Type: ApplicationFiled: January 19, 2001Publication date: October 18, 2001Inventor: Ronald C. Hawley
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Patent number: 6287491Abstract: The method of moulding plastics articles comprises propelling a solid plastics feed material by screw feed means (10) through a melting zone, the screw feed means (10) propelling the resultant molten plastics material to shaping means, shaping the molten plastics material in the shaping means and allowing the material to solidify to retain the shape, and is characterised by varying the composition of the plastics material cyclically before or along the length of the screw feed means (10) so that the molten material (1,2) emerging from the screw feed means (10) varies in composition with time, whereby at least one part of each moulded article (50) is of different composition from the remainder of the article (50).Type: GrantFiled: May 25, 1999Date of Patent: September 11, 2001Inventors: Rafael Zvi Karl Kilim, Simcha Izkhak Kilim
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Patent number: 5795601Abstract: A slurry tank which stores an inorganic slurry includes a funnel-shaped lower tank portion having a discharge port. A valve is positioned in the slurry tank above the discharge port and complementary in shape to an inner surface of the funnel-shaped lower tank portion of the slurry tank. The valve can be moved by an actuator selectively out of the discharge port to allow the inorganic slurry to be discharged from the discharge port and into the discharge port to stop discharging the inorganic slurry from the discharge port. A proportional pump is connected to the discharge port for supplying the inorganic slurry at a constant rate to a mold for injection molding when the valve is moved out of the discharge port by the actuator. A cylinder is connected to the proportional pump for being supplied with the inorganic slurry from the proportional pump and the cylinder opens into the mold.Type: GrantFiled: July 2, 1996Date of Patent: August 18, 1998Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazuyuki Yamada, Yuji Saito
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Patent number: 5772319Abstract: A material loader includes a material hopper, an air filter, a hopper support and a control box. The filter is positioned on top of the hopper, and the hopper is positioned on top of the hopper support. The entire unit is mounted directly over the throat of a plastic injection molding machine and feeds a mixture of virgin and regrind plastic into the machine. The control box, mounted on the side of the plastic injection molding machine, contains timers and other electronic equipment which run the unit to control amount, ratio and timing of conveyance of feed material to the hopper, and ultimately to the press. Two inlet tubes feed plastic into the hopper, one feeding virgin plastic and the other feeding regrind plastic. The control box contains load timers, which may be adjusted manually to control the exact amount of each type of plastic which is fed into the hopper.Type: GrantFiled: February 12, 1997Date of Patent: June 30, 1998Inventors: Paul A. Pemberton, Darren E. Tipton
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Patent number: 5547357Abstract: An apparatus for hot-briquetting iron sponge includes a gravity feeder which has a feed shaft and a regulating tongue which supplies material in a dosed quantity to a moulding gap of a roller press, in such a way that the apparatus can also be used for pressing hot iron sponge at temperatures of up to 1000.degree. C. for obtaining high-density briquettes of good quality. The regulating tongue is provided with a heat-reducing insulating layer and cooling system. The feed shaft and a feed hopper also may have a heat-insulation layer and a cooling system. A flow-rate control is provided for gravity feeders where bulk material or flowable material is supplied by at least one regulator through a feed shaft to a moulding gap formed between at least two rolls and is processed by the rolls. At least one of the rolls is motor-driven. The material is supplied to the moulding gap by the regulating tongue in response to a driven roll torque sensed by a torque detector.Type: GrantFiled: May 20, 1994Date of Patent: August 20, 1996Assignee: Maschinenfabrik Koppern GmbH & Co. KGInventor: Hans-Georg Bergendahl
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Patent number: 5286187Abstract: A machine for molding a starting crystalline saturated polyester resin such as polyethylene terephthalate includes a device for first drying and then preheating the starting resin to a temperature above its melting point to lower the viscosity of the resin to such an extent that the resin is not substantially degraded in the compression section of the molding machine. A feed section is provided for quantitatively feeding the molten starting resin to the main body of the molding machine. Accordingly, the starting resin is molded into a desired shape in a molding machine under conditions such that the crystallization temperature of the resulting molded article is within 20.degree. C. of the crystallization temperature of the starting saturated crystalline polyester resin.Type: GrantFiled: December 23, 1992Date of Patent: February 15, 1994Assignee: Mitsui Petrochemical Co., Ltd.Inventors: Hiroji Niimi, Takashi Satake, Kunio Tomita
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Patent number: 4762482Abstract: The material containers filled with a polyester material are moved in the feed device from an intake position to a discharge position by pivoting 180.degree. with the aid of a swivel frame. In the discharge position the material container is in a coaxial position between the feed cylinder and the retracted feed ram. For emptying, the feed ram passes through the hollow, cylindrical material container, which is open on both front ends, and plunges into the feed cylinder to press the material into the plasticizing unit of the injection molding machine. The material container thus forms a part of the feed cylinder and the feed ram is simultaneously used as a discharge piston, as a result of which the usually necessary, additional discharge devices and the storage space of the feed cylinder can be eliminated.Type: GrantFiled: October 5, 1987Date of Patent: August 9, 1988Inventor: Ernst Sauerbruch
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Patent number: 4700767Abstract: A molding machine for molding-sane cores employing openable dies and an injection head with a cylindrical chamber, comprising a compressed air tank coaxial with the chamber, shutters for feeding air at the top of the chamber, movable supports for the head for shifting the head both horizontally and vertically from the working position to a lateral one, a raising piston connected to the lower die for vertically shifting the lower die against and away from the fixed upper die, a drilled gassing plate for gassing the core formed within the closed dies, mounted movable away from and towards the fixed upper die, a plate having dowels for raising and extracting the core formed by the lower die after it has been lowered relatively to the fixed one, an openable collet movable away from and towards the core in extracted position from the lower die and movable outside the machine to a finishing (trimming) station, programmed control and operating devices for obtaining the sequence of the operating phases, and extractioType: GrantFiled: September 16, 1986Date of Patent: October 20, 1987Inventor: Guido Peterle
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Patent number: 4687613Abstract: This invention relates to an injection molding process for synthetic resin and its apparatus which enables the production of highly precise molded articles and a shortening of the molding time. More particularly, by actuating a forcible cooling means mounted in a mold part constituting a gate, the synthetic resin fused by local heating of the gate is cooled and solidified forcibly, thereby closing the gate. On the other hand, by stopping the forcible cooling means, the solidified resin in the gate is heated and fused by a heater mounted either inwardly of a runner or outwardly thereof.Type: GrantFiled: June 24, 1985Date of Patent: August 18, 1987Inventor: Shigeru Tsutsumi
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Patent number: 4411531Abstract: The extruder assembly includes a barrel, a screw received within the barrel, a motor drive and transmission connected to one end of the screw for driving same and an extruding die at the other end of the barrel through which material is forced by the screw. The barrel has a slot therein and the assembly further includes a ram feed assembly having two pivotally mounted ram sections positioned on either side of the barrel for forcing molten plastic through the slot into the barrel. The ram sections are pivotable between an upper operating position and a lower exposed position providing easy access to the ram sections for cleaning and maintenance thereof.Type: GrantFiled: October 19, 1981Date of Patent: October 25, 1983Assignee: Thomas R. VigilInventors: George Holmes, Frank Keyser
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Patent number: 4330242Abstract: A machine for extruding hollow cored concrete sections, wherein concrete forced into a travelling mold by augers and trailing mandrels form a cored concrete slab, wherein the mold is provided with a vibrating top plate assembly having forward and trailing sections, the forward section having a greater amplitude of vibration than the trailing section so as to minimize amplitude to vibration transferred to the concrete in the afterpart of the mold.Type: GrantFiled: January 2, 1981Date of Patent: May 18, 1982Inventor: George Putti
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Patent number: 4248584Abstract: Highly purified metal halide salts are made into a frangible stick having uniformly spaced lines of weakness which permit the stick to be broken readily into cylindrical pellets of uniform size. The pellets are particularly useful to supply the vaporizable fill in high intensity metal halide discharge lamps. The stick is formed by intermittently loading salt powder into the sized entrance to a channel through which the salt is forced, and compressing the charge against the back end of previously formed salt stick by means of a polished plunger.Type: GrantFiled: February 12, 1979Date of Patent: February 3, 1981Assignee: General Electric CompanyInventor: Elmer G. Fridrich
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Patent number: 4239079Abstract: A deflector for use on an automatic molding machine deflects incoming sand downwardly onto the drag table and then upwardly into deep recesses in the pattern. The sand deflector is formed as a rectangular prism from a single block of metal, and has two deflecting channels separated by a strengthening septum. The channels are arranged at a predetermined angle in relation to the mounting surface of the deflector.Type: GrantFiled: May 30, 1979Date of Patent: December 16, 1980Inventor: Joseph Simmons
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Patent number: 4158540Abstract: A process of manufacturing molded parts using a mold with relatively movable parts enclosing a mold cavity which is fed with plasticizable material, comprises directing grains of the plasticizable material into a vertically elongated vestibule having a lower end connected to the feed of the mold cavity and directing hot gases into the lower end of the vestibule and upwardly through the plasticizable material therein to make the material weldable and, thereafter, directing the weldable material into the cavity under pressure. The device for carrying out the process includes a feed conduit which is connected into the cavity which is disposed below a vertically elongated vestibule which has a closed top and a bottom opening into the conduit.Type: GrantFiled: June 24, 1977Date of Patent: June 19, 1979Assignee: Gebruder Buhler AGInventors: Bruno Stillhard, Hans Naf
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Patent number: 4144012Abstract: Relates to plastic material molding machines and to a unitary assembly of parts installable between the hopper and the plastic pellet material inlet opening of the molding machine for providing bodily translatable movement of the hopper to one side of the machine where the remaining contents of the hopper may be discharged into a drainage collector for possible re-use at a later time. The translatable movement of the hopper is usually performed when the hopper content is to be changed and is carried out by moving or sliding the hopper while in upright position along a track extending laterally of the machine. The track occupies the upper position of a gas-tight conduit, preferably rectangular in cross section, which serves to deliver a gaseous medium to the contents of the hopper, such as hot dry air for the purpose of removing moisture from the plastic pellets in the hopper.Type: GrantFiled: August 5, 1977Date of Patent: March 13, 1979Inventor: Paul D. Pinkley