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| Number | Title | Issue Date |
| 7431583 | Injection molding machine The invention provides an injection molding capable of adjusting a detection level with a simple structure and detecting a deposit level of the resin pellets near a plasticizing screw. A cooling jacket is mounted so that a resin supplying hole of the cooling jacket ... | 10/07/2008 |
| 7329036 | Pressurizing lid structure of a kneader In a kneader having a mixing tank 1 for storing the kneaded material, a pair of rotors, 2 disposed in parallel for kneading the kneaded material stored in the mixing tank 1, and a pressurizing lid 3 inserted slidably in the opening at the... | 02/12/2008 |
| 7284897 | Extruder for continuously working and/or processing flowable materials An extruder has at least three parallel, co-rotating shafts disposed in a cavity therein along a circle. The shafts are equipped with screw elements closely intermeshing over their whole circumference. At least one screw element is formed as a passage screw element ... | 10/23/2007 |
| 7270470 | Feed extender for explosive manufacture A feed device extends the run time for manufacturing explosive materials. The feed device includes a feed hopper for retaining processing materials where the feed hopper includes an access at the top of the feed hopper for inputting processing materials and an exten... | 09/18/2007 |
| 7244060 | Kneading apparatus A kneading apparatus includes a barrel having a chamber, which is a tubular hollow, a biaxial screw set for extruding a material to be kneaded downstream by rotation of the biaxial screw set inside the chamber, and kneading blade sections, mounted in the screw set, ... | 07/17/2007 |
| 7219442 | Drying method The vacuum contact drying takes place in a device with a horizontally-arranged heated cylinder (1), a stirrer circulating with a very small wall separation, a blade (4) arranged on the stirrer and optionally an injection line (6), also arranged ... | 05/22/2007 |
| 7083320 | Kneading apparatus and method, including selectable supply ports, for kneading rubber or rubber compositions A continuous kneading apparatus and method are provided wherein discharge ports are provided at a plurality of positions of the barrel to discharge a kneaded product, and one of the plurality of the discharge ports is selected according to a desired kneading conditi... | 08/01/2006 |
| 7048431 | Plastic processing machine for producing fiber-containing thermoplastics A plastics processing machine for producing fiber-containing thermoplastics includes an extruder, and a scale assembly having a weighing plate for determining an amount of fiber to be supplied to the extruder. A fiber feeding device supplies fibers from a take-off u... | 05/23/2006 |
| 7004616 | Kneading apparatus and method for kneading rubber-based composition using the same A kneading apparatus includes a barrel having a cylindrical chamber; a screw assembly rotating in the chamber so that a material to be kneaded is extruded in the axial direction by the rotation, the screw assembly including a screw section having helical blades and ... | 02/28/2006 |
| 6817748 | Method for evaluating and controlling a mixing process A method for evaluating and controlling a mixing process for polymer-based compounds includes the steps: obtaining initial starting conditions and values for viscosity dependent parameters; increasing batch temperature by a differential amount; calculating mixing pa... | 11/16/2004 |
| 6669358 | Colored plastics molding device having an automatic calibration function A colored plastics molding device can perform automatic calibration, and thus colorant can be charged, being free from wrong calculation and error, and therefore, high-quality colored plastics molded items can be obtained. The colored plastics molding dev... | 12/30/2003 |
| 6474972 | Resin extrusion apparatus A resin extrusion apparatus having a weighing device (11) connected to a controller (18). A powder container (12) for supplying a powder (Y) to a resin extruder (20), a screw (13), and a motor (14) are installed over the weighing device 11. The motor (14)... | 11/05/2002 |
| 6089745 | Procedure for feeding plastic granulate into the intake opening of a plastic extruder A procedure for feeding plastic granulate into the intake opening of a plastic extruder with a storage tank, and with an intermediate storage tank resting on a weighing device. In the procedure, the specified quantity by weight of material processed for t... | 07/18/2000 |
| 5909958 | Screw extruder with independently adjustable groove depth A screw extruder (10), including a barrel assembly (12) having a central bore (36) which defines an inner surface (37). An extruder screw (38) is positioned within the barrel assembly's (12) central bore (36). The barrel assembly (12) has an input end (20... | 06/08/1999 |
| 5772319 | Material loader for injection molding press 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 ... | 06/30/1998 |
| 5556581 | Method of injection molding polyethylene terephthalate A method of injection molding whereby a polyethylene terephthalate (PET) without being predried or with having an irregular-shape is fed by a feed screw from a material feeder to an injection cylinder and plasticated by an injection screw. The rotational ... | 09/17/1996 |
| 5061078 | Internal mixer Described herein is an internal mixer of the type including a mixing chamber rotatably accommodating mixing rotors therein, a hopper frame erected on the mixing chamber, a charge hopper provided on one lateral side of the hopper frame for charging a mixin... | 10/29/1991 |
| 4953984 | Overload preventing system for kneading machine A kneading machine has a cylinder formed with upper and lower ports for compressed fluid, a piston slidably fitted in the cylinder and having a weight connected to the underside thereof, a case disposed under the cylinder and having an upper opening to be... | 09/04/1990 |
| 4938605 | Apparatus and method for mixing and continuous extrusion of a plastic mass An apparatus for the mixing and continuous extrusion of a plastic mass having a first stage in which an intermittently operating mixer receives the starting materials batchwise and a second stage having a screw extruder which is supplied at periodic inter... | 07/03/1990 |
| 4906102 | Apparatus for mixing thermoplastified synthetic resins An extruder feeds a thermoplastified flow of synthetic resin to at least one mixing unit which is driven independently of the extruder and has a rotor and stator with mutually facing pockets and defining a gap between them traversed by the thermoplastifie... | 03/06/1990 |
| 4900155 | Method of metering an additive into and mixing it with a thermoplastified synthetic resin A method of mixing a pumpable additive with a thermoplastified flow utilizes a pocketed rotor and stator structure integrated in a worm or screw plastifier and to which the additive is fed by a metering pump at the upstream end of the gap between the roto... | 02/13/1990 |
| 4848915 | Process for metering color concentrates to thermoplastic polymer melts Continuous strands of color concentrate are metered into the feed zone of a screw-melter polymer extruder where they are cut into pellets by the shearing action of the flights of a rotating screw against the extruder housing. These pellets are mixed withi... | 07/18/1989 |
| 4830506 | Control system for ram fed mixing machine A batch mixer has position monitoring means for the ram operably coupled to the ram moving motor to move the ram within a range of positions adjacent the ram's "down" position to improve mixing by allowing limited upward movement of the ram as a result of... | 05/16/1989 |
| 4818113 | Control for batch mixers The invention relates to a process for mixing a polymer composition using an internal mixer having rotors 18, 20 rotatably mounted in a chamber 12, a ram 28 by which pressure can be applied to material in the chamber 12, and temperature control for the mi... | 04/04/1989 |
| 4766766 | Method and apparatus for preparing dough A method of preparing dough for bread or fancy cakes can be carried out more quickly, precisely and reliably, dispensing with subjective judgements of the dough during and/or after the mixing, in such a manner that the state of the dough is monitored with... | 08/30/1988 |
| 4755061 | Proportional feeder for particulate solids In the mixing of two or more particulate solid feeds in proportional ratios in which the unmixed solids are fed from separate bin receivers into a common mixture bin receiver having a generally vertical section, the present invention comprises an improved... | 07/05/1988 |
| 4352567 | Automatic dough-processing apparatus An automatic dough-processing apparatus which includes a vertical assembly constituted by a tubular processing chamber whose upper end communicates with a metering tube of enlarged diameter to which flour is supplied. Coaxially mounted within the assembly... | 10/05/1982 |
| 4344710 | Polymer foam extrusion system A continuous foam production system is disclosed wherein a molten thermoplastic resin is mixed with volatile blowing agent at elevated pressure to form an extrusion mass. A helical screw extruder means is adapted to extrude the molten resin with volatile ... | 08/17/1982 |
| 4289408 | Marbleization of plastic materials Methods and apparatus for marbleizing molded parts produced by screw extruder machines. Liquid colorant is advantageously injected at a comparatively high pressure into a melt containing portion of the machine between the screw and its housing, where the ... | 09/15/1981 |
| 4286882 | Apparatus for the automatic, uniform drawing-in of elastomeric material into worm extruders A method of, and apparatus for, automatically and uniformly drawing-in elastomeric material into worm extruders comprising at least one draw-in roll for the material mixture, arranged in spaced relationship in front of the extruder worm or screw and drive... | 09/01/1981 |
| 4194842 | Method for binding liquid-containing radioactive wastes and kneading machine therefor Liquid-containing radioactive wastes are bound into thermoplastic material by introducing particles of thermoplastic material at a non-sticking temperature into a kneading machine, heating the thermoplastic material in the absence of radioactive wastes to... | 03/25/1980 |
| 4183673 | Marbleization of plastic materials Methods and apparatus for marbleizing molded parts produced by screw extruder machines. Liquid colorant is advantageously injected at a comparatively high pressure into a melt containing portion of the machine between the screw and its housing, where the ... | 01/15/1980 |
| 4090695 | Liquid feeding control method Liquid reaction molding (LRM) shot size and ratio control is achieved using a programmable controller (microprocessor) to select on a first-come-first-served basis one mold from among several and to manipulate a plunger metering pump system by retracting ... | 05/23/1978 |
| 3985345 | Continuous compounding and mixing apparatus A continuous mixing vessel for polymer processing materials characterized in that the progress of the materials being mixed through the mixing volume is substantially vertical so as to permit natural subsidence of the materials, whereby mixture of the mat... | 10/12/1976 |
| 3942767 | Method and apparatus for continuously automatically controlling the water content of kneaded viscous materials A feed material is introduced into a pressure-kneading portion of a kneader with a slightly insufficient water content, wherein the remaining water is added and the material is kneaded to be delivered from the kneader as having a predetermined water conte... | 03/09/1976 |
