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| Number | Title | Issue Date |
| 7309224 | Device for preparation of plastic materials for recycling purposes A device for the preparation of plastics material for recycling purposes has a container (1) with an upper inlet opening (10) for the material. In the container (1), at least one tool (14) rotates about the vertical container axis. This t... | 12/18/2007 |
| 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 |
| 7278776 | Apparatus and method for injecting a liquid dye into a polymer melt An apparatus and a method for injecting a liquid dye into a polymer melt, which includes a metering pump with a metering inlet and a metering outlet. The metering inlet connects to a dye tank and the metering outlet connects to a polymer melt carrying component. To ... | 10/09/2007 |
| 7275857 | Apparatus for treating plastics material A device for treating plastics material, in particular thermoplastic plastics material, has a receiving container (1) which has a base (15) and lateral walls (14). In the receiving container at least [one] disc (17) is arranged close to t... | 10/02/2007 |
| 6994540 | Injection molding system and pellet feeding unit In a conventionally used injection molding apparatus, undried resin pellet is put in a drier of a predetermined temperature and water and gas in the undried resin pellet is completely removed, and the dried pellet deprived of water and gas is thrown into the injecti... | 02/07/2006 |
| 6726464 | Mixing device for manufacturing molding An apparatus for manufacturing moldings by which clear colors and patterns can be brought out without a remarkable lowering of strength. Immediately before delivery to a metal mold, outer resin material positioned on the main cylinder inner wall side is put in the m... | 04/27/2004 |
| 6644845 | Buffer store for polymer melts, especially cellulose solutions The present invention relates to a buffer tank as is substantially used for ensuring a constant supply of the spinning machine with a polymer melt in spinning machines. To this end the buffer tank is provided with a compensation chamber whose volume is va... | 11/11/2003 |
| 6299341 | Structure of a mixer device for new and used plastic materials A mixer for new and used materials includes a closed housing having a bottom formed with an outlet in which is fitted an outlet pipe, a top formed with a first inlet in which is fitted a first inlet pipe, and a side formed with a second inlet in which is ... | 10/09/2001 |
| 5988865 | Device for preparing thermoplastic material An apparatus for reprocessing thermoplastic synthetic plastic material has a receptacle (1) for accomodating the synthetic plastic material, in which receptacle (1) has a rotating tool (4) is provided which presses the synthetic plastic material out of th... | 11/23/1999 |
| 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 |
| 5855927 | Extruder An extruder for the plastification and extrusion of a rubber mixture in the form of two cold material strips through two inlet passages (4, 5) has in a housing (1) two gears (2, 3) meshing with one another in the manner of a gear pump. The inlet passages ... | 01/05/1999 |
| 5783225 | Apparatus for processing thermoplastic synthetic plastics material An apparatus for plasticizing thermoplastic synthetic plastics material includes a screw (13) which rotates within a housing (12) and plasticizes the synthetic plastics material which is supplied by a supply mechanism (27) through an intake opening (10) o... | 07/21/1998 |
| 5267847 | Compact precision extrusion system A compact and precision extrusion system for extruding strips of rubber compounds with profiles of accurate dimensions. Strips of rubber compound are uniformly heated and mixed in an extruder and then passed through a low pressure drop strainer to remove ... | 12/07/1993 |
| 5225210 | Colored resin molder A colored resin molder having a cylindrical input member, a resin material supply mechanism for storing a molding resin material having thermoplastic properties and supplying the stored resin material through the input member, a coloring agent supply devi... | 07/06/1993 |
| 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 |
| 4929086 | Continuous rate feed hopper The apparatus is for the continuous mixing of rubber like polymers with chemical additives to form a homogeneous compound, using minimum unproductive work, such as mixing already mixed material, or massive batch blending to correct lean and rich mixtures ... | 05/29/1990 |
| 4678339 | Screw extruder Disclosed is a screw extruder comprising a feed bush having a screw extruder coaxially mounted therein, and which, around its circumference, is provided with several longitudinally extending grooves distributed evenly in the circumferential direction. Ada... | 07/07/1987 |
| 4643581 | Piston metering apparatus of a reaction injection molding machine A piston metering apparatus for the metering of the components of a reaction injection molding machine comprising a metering cylinder (2) the cylinder space of which is surrounded by a cylinder wall, a metering piston (10) sealed in relation to the cylind... | 02/17/1987 |
| 4636084 | Removing volatiles from plastic materials delivered to an extrusion or injection molding machine A device is described which eliminates the pre-drying of particulate plastic prior to processing by an extrusion or injection molding machine. A tubular guide member directs particulate plastic under gravity into the feed inlet of the machine. During deli... | 01/13/1987 |
| 4636085 | Apparatus for removing volatiles from plastic materials delivered to an extrusion or injection molding machine A device is described which eliminates the pre-drying of particulate plastic prior to processing by an extrusion or injection molding machine. A tubular guide member directs particulate plastic under gravity into the feed inlet of the machine. During deli... | 01/13/1987 |
| 4549810 | Phase separating rotary processor and method Apparatus and methods for physically separating a heterogeneous mixture of immiscible liquids utilizing the difference in the viscosities of the components. At least one moveable surface is enclosed by at least one stationary surface to form a processing ... | 10/29/1985 |
| 4494877 | Funnel member for single-screw extruder The funnel member of a single-screw extruder comprises a housing and a feed screw which passes at least partially axially therethrough and is sealed from the drive shaft by a return feed screwthread covered by a bushing which is fixed with respect to the ... | 01/22/1985 |
| 4486100 | Apparatus for feeding synthetic resin powder to screw extruder An apparatus for the feeding of powderous resin material to a vacuum hopper is improved by providing at least one vertical pipe-line portion between the resin tank and the vacuum hopper, and disposing a flow restricting element such as an orifice in this ... | 12/04/1984 |
| 4482045 | Valve and material supply system A valve and a system for transporting normally, non-fluent materials, including such valve, comprises a rotatable shaft, a housing surrounding at least part of the shaft and adapted to form an annular material transport space between the valve and the sha... | 11/13/1984 |
| 4421412 | Process and apparatus for processing plastic and polymeric materials Novel and improved processes and apparatus for processing particulate materials which can be converted to the liquid state. Essentially, the process and apparatus involve feeding a particulate material to an annular processing passage for melting and cont... | 12/20/1983 |
| 4390822 | Ratio control system Apparatus for continuously feeding selected ratios of materials to be mixed together. Accurate proportioning of the component materials is facilitated through the advantages of the invention. Since all ingredients are introduced continuously in the select... | 06/28/1983 |
| 4289407 | 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... | 09/15/1981 |
| 4247501 | 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 ... | 01/27/1981 |
| 4077756 | Injection molding extrusion mixer Mixer apparatus for use with injection molding, extrusion or mixing and compounding machines wherein a melt chamber is lined with a series of stacked Belleville spring washers to provide a series of axially narrow, annular extrusion passages between the w... | 03/07/1978 |
| 3988010 | Apparatus for the continuous agglomeration of aqueous latices There is disclosed an apparatus for the continuous agglomeration of aqueous latices to provide large particles comprising a mixing zone for forming an admixture of an agglomerating solution and a latex having mixing means and a perforated member as one wa... | 10/26/1976 |
| 3946999 | Apparatus for plasticizing and injecting mouldable synthetic material Apparatus for plasticizing and injecting mouldable synthetic material is disclosed. The apparatus comprises a cylindrical member having a longitudinal cylindrical bore therein into which such material is introducible, nozzle means firmly secured to one en... | 03/30/1976 |
