With Upstream Screen Or Perforated Plate For Straining, Homogenizing, Or Mixing Material To Be Shaped Patents (Class 425/197)
  • Patent number: 9526962
    Abstract: A ball tossing game formation kit includes a digging tool for forming a semi-spherical hole in a surface of sand. The digging tool comprises a plate having a first side. The perimeter edge includes a bottom edge, a top edge, a first side edge and a second side edge. The bottom edge is convexly arcuate from the first side edge to the second side edge. A depth line is defined extending between a juncture of the first side edge and the bottom edge and a juncture of the second side edge and the bottom edge. The bottom edge includes a distal edge with respect to the depth line. A distance from a center of the depth line to the distal edge is greater than 4.0 inches and less than 6.0 inches. A barrier mold is filled with sand and overturned to form the sand into a backstop.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: December 27, 2016
    Inventor: William Ryan Kegel
  • Patent number: 9375890
    Abstract: The extrusion-molding device of the invention includes a flow passage for transporting a paste raw material composition; a screw provided at an upstream side of the flow passage to knead the raw material composition and transport it to a downstream side; a die provided at a downstream side of the flow passage to extrude a molded body composed of the raw material composition therefrom; a resistive tube for connecting the flow passage and the die; and a current plate provided between the screw and the die. The current plate comprises a plurality of through-holes that penetrate from a upstream end side to a downstream end side, and an opening of the through-hole on the upstream end side has a larger open area than an opening on the downstream end side.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: June 28, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Teruo Komori, Hajime Yoshino
  • Patent number: 9272468
    Abstract: An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a first inlet, a first outlet, a cavity configured for receiving a wet coproduct and a binder through the first inlet, and a stirring apparatus within the cavity for premixing the wet coproduct and binder into a substantially homogeneous mixture; a high shear mixer having a housing, a drive apparatus and a high shear apparatus, the housing defining an opening, the drive apparatus being within the housing and for forcing the substantially homogeneous mixture from the premixer into the high shear apparatus, and the high shear apparatus including a rotor, a stator and a screen covering the opening and being for shear mixing the mixture including forcing the mixture through the screen and out of the housing in the form of nucleation enhanced particles; and an agglomerator having an interior chamber sized and configured to receive the nucleation enhanced particles from the high shear mixer and
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: March 1, 2016
    Assignee: Purdue Research Foundation
    Inventors: Klein E. Ileleji, Kyle V. Probst
  • Patent number: 9028239
    Abstract: The present invention relates to an mass distribution device for supplying a mass of foodstuff starting material to one or more cavities of a mold drum for molding products from the mass, comprising a base member which extends partially around the outer cylindrical circumference of the drum and which has an introduction area through which the mass is the fed to the cavities. The invention further relates to a molding device and to a process for operating the inventive mass distribution device.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: May 12, 2015
    Assignee: GEA Food Solutions Bakel B.V.
    Inventor: Hendrikus Petrus Gerardus Van Gerwen
  • Patent number: 8876517
    Abstract: A polymer filtration apparatus for sealing a slide plate translatable across a bore of an extrusion or mold machine, includes an annular seal having a sealing surface which is biased against the slide plate by a spring mechanism. The annular seal has a thrust surface which is angled relative to the sealing surface and the thrust surface is located at an opposite axial end of the annular seal from the sealing surface. The spring mechanism can be a single spring with overlapping tangs or a multiple spring assembly in overlapping relationship, with or without tangs, to form a continuous barrier. The spring assembly is used to exert a radial force against the thrust surface of the annular seal to bias the seal in an axial direction against the downstream slide plate. In operation, pressurized polymer melt in the extrusion bore further biases the spring against the annular seal which is then transferred to the seal and the slide plate.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 4, 2014
    Assignee: Nordson Corporation
    Inventors: Kevin S. Tuttle, Gregory G. Gambill, Patrick K. Strong
  • Patent number: 8821148
    Abstract: A sheet forming apparatus includes a supply port for supplying a slurry, a discharge port for discharging a green sheet, a first slurry spreading chamber, a second slurry spreading chamber, and a third slurry spreading chamber that are disposed between the supply port and the discharge port, and joining holes through which the first, second, and third slurry spreading chambers are joined to each other. At least two of the joining holes are disposed one on each side of the supply port along a transverse direction of the green sheet.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: September 2, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Atsushi Koizumi, Toshikazu Tanaka
  • Publication number: 20140093603
    Abstract: A polymer filtration apparatus for sealing a slide plate translatable across a bore of an extrusion or mold machine, includes an annular seal having a sealing surface which is biased against the slide plate by a spring mechanism. The annular seal has a thrust surface which is angled relative to the sealing surface and the thrust surface is located at an opposite axial end of the annular seal from the sealing surface. The spring mechanism can be a single spring with overlapping tangs or a multiple spring assembly in overlapping relationship, with or without tangs, to form a continuous barrier. The spring assembly is used to exert a radial force against the thrust surface of the annular seal to bias the seal in an axial direction against the downstream slide plate. In operation, pressurized polymer melt in the extrusion bore further biases the spring against the annular seal which is then transferred to the seal and the slide plate.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 3, 2014
    Applicant: Nordson Corporation
    Inventors: Kevin S. Tuttle, Gregory G. Gambill, Patrick K. Strong
  • Patent number: 8672660
    Abstract: A plate suitable for positioning with an extruder apparatus is provided in which the plate includes at least one temperature sensor. The plate is upstream of the die located at or near the end of the extruder apparatus. The sensor(s) allow for the simultaneous measurement of batch material temperatures at multiple spatial locations across the face of the plate. The temperature sensors associated with the plate can be used to identify spatial and temporal temperature patterns within the batch flow.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: March 18, 2014
    Assignee: Corning Incorporated
    Inventors: Joseph Henry Citriniti, Gregory Eisenstock, Robert John Locker
  • Patent number: 8622221
    Abstract: A filtering device (100) for plastic melts exhibits at least one screen plunger (10) arranged movably between an inlet channel (5) and an outlet channel (6) of a housing (1) and containing replaceable, three-dimensional filter elements (25). The inside of the filter elements (25) is connected to at least one melt channel (11, 12) formed in the screen plunger (10). The melt channel is connected to the inlet or outlet channel (5, 6) of the housing (1) when in the production position. The screen plunger (10) exhibits at least one receiving chamber (14) that can be closed using a cover (16) on the face side. Several filter elements (25) are bundled with a central distribution element (20) to a filter cartridge (30) that can be placed in the receiving chamber (14).
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: January 7, 2014
    Assignee: Kreyenborg GmbH
    Inventors: Frank Hartmann, Michael Andress
  • Patent number: 8585897
    Abstract: A cylindrical back washing purification apparatus comprises a main body (1), a cylindrical through hole (2) transversely provided in the main body (1), a plunger (4) slidably connected in the axial direction arranged in the through hole (2), a feed channel (6) and a discharge channel (8) connected with the through hole (2) on the main body (1). The outer peripheral portion of the foreside of the plunger (4) is concaved inward to form an annular cavity (10) with the inner wall of the through hole (2), the annular cavity (10) is connected with the feed channel (6), a ā€œLā€-type hole (12) which is connected with the discharge channel (8) is provided on the plunger (4) from fore to back in the axial direction, filtering holes (14) for connecting the annular cavity (10) with the ā€œLā€-type hole (12) are opened on the concaved peripheral face of the plunger (4) in the radial direction, a detachable filter screen (15) is coupled with the concaved peripheral face of the plunger (4).
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: November 19, 2013
    Inventors: Xun Wang, Zhenbao Wang, Zan Wang, Cao Wang
  • Patent number: 8449283
    Abstract: A die for forming an extrusion includes a die body, a body feed section and an extrusion forming section. The die body may include an inlet and an outlet defining an extrudate flow path through the die body. The body feed section may be positioned between the inlet and outlet and includes an arrangement of body feed channels. The extrusion forming section may be positioned between the body feed section and the outlet and includes a thin-wall forming portion fluidly coupled to at least one thick-wall forming portion. The thin-wall forming portion may include an array of pins extending from the body feed section towards the outlet and the thick-wall forming portion may include at least one baffle section positioned in the extrudate flow path through the thick-wall forming portion. The area of the thick-wall forming portion may be greater than an interstitial area between the pins.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: May 28, 2013
    Assignee: Corning Incorporated
    Inventors: Stephen Charles Currie, Mircea Despa, Paul Martin Elliott, Richard Curwood Peterson
  • Patent number: 8419997
    Abstract: The present invention relates to a method and to a device for injection molding plastic material, wherein the starting plastic material to be treated is first subjected to a pretreatment, wherein the plastic material is heated in a receiving container at a temperature below the melting temperature while constantly being mixed, and thereby at the same time is crystallized, dried and/or cleaned and/or the intrinsic viscosity thereof is increased. According to the invention, the plastic material pretreated in this way is transferred into a screw injection molding machine (10) having a screw (16) rotating in a housing (17) and being axially displaceable therein and/or acting as a piston, is plasticized in said screw, and molded into a molded part, for example a preform.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: April 16, 2013
    Assignee: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin
  • Patent number: 8389254
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 5, 2013
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne
  • Patent number: 8382464
    Abstract: The present invention is directed to a device for the production of a cellular wood plastic composite material comprised of an orifice that conducts the composite material from the adapter of the extruder to the transition die plate in such a manner that a uniform flow of material reaches the transition die plate; a transition die plate that further directs the flow of material to a flow restriction die plate in a manner ensuring that equal amounts of material are delivered to all areas of the flow restriction die plate; a flow restriction die plate that provides sufficient resistance to material flow to increase the melt pressure of the portion of the material that is upstream in relation to the flow restriction die plate and controls the temperature increase caused by this restriction by dividing the flow into numerous suitably sized and shaped streams; a compression die plate that fuses the separate streams issuing from the flow restriction die plate into a single stream of material and maintains the melt
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: February 26, 2013
    Assignee: Strandex Corporation
    Inventors: Brian D. Keller, David F. Dostal, Terry C. Laver, Alfred B. England
  • Patent number: 8377345
    Abstract: A method of manufacturing an optical member by mixing isocyanate terminal prepolymer component (A) and aromatic diamine component (B), and immediately after mixing, casting a mixture into a casting mold to obtain a molded article. A method of manufacturing a plastic lens by mixing said components (A) and (B), immediately after mixing, casting a mixture into a casting mold and polymerizing it to obtain a molded article. A gasket for molding plastic lenses comprised of a cylindrical member. A casting mold for molding plastic lenses using this gasket and a monomer casting jig.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: February 19, 2013
    Assignee: Hoya Corporation
    Inventors: Masanori Kadota, Shigeo Nakamura, Kengo Hirayama, Yoshitaka Kitahara, Yuji Hoshi, Yasuhisa Okamoto
  • Patent number: 8322025
    Abstract: Closely spaced, high aspect-ratio gridline structures are formed on the surface of a substrate using two or more co-extrusion heads that co-extrude gridline material and sacrificial material such that the deposited gridline material is compressed between opposing portions of the sacrificial material. The co-extrusion heads include three-channel cavity structures that converge to a relatively small outlet orifice that dispenses the gridline material with relatively fine features and a relatively high aspect ratio. The outlet orifices of the co-extrusion heads are disposed in a staggered arrangement such that gridlines extruded from the first co-extrusion head are disposed between two gridlines extruded from the second co-extrusion head. Photovoltaic cells are produced with metal gridlines formed in this manner.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: December 4, 2012
    Assignee: SolarWorld Innovations GmbH
    Inventors: David K. Fork, Thomas S. Zimmermann
  • Patent number: 8296019
    Abstract: A control system for a mobile excavation machine is disclosed. The control system may include a ground engaging work tool, a sensor, and a controller. The sensor may be configured to sense a parameter indicative of a current travel speed of the mobile excavation machine and generate a speed signal in response thereto. The controller may be in communication with the ground engaging work tool and the sensor, and configured to receive the signal. The controller may also be configured to determine a cutting depth of the ground engaging work tool into a material and calculate a current productivity value associated with removal of the material based on the speed signal and the determined cutting depth. The controller may be further configured to control the ground engaging work tool to vary the amount of material currently being removed in response to the current productivity value.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: October 23, 2012
    Assignee: Caterpillar Inc.
    Inventor: Larry Ellis Kendrick
  • Publication number: 20120235286
    Abstract: Flow diverting structures for preferentially impeding, redirecting or both impeding and redirecting the flow of flowable encapsulant material, such as molding compound, proximate a selected surface or surfaces of a semiconductor die or dice during encapsulation are disclosed. Flow diverting structures may be included in or associated with one or more portions of a lead frame, such as a paddle, tie bars, or lead fingers. Flow diverting structures may also be inserted into a mold in association with semiconductor dice carried on non-lead frame substrates, such as interposers and circuit boards, to preferentially impede, redirect or both impede and redirect the flow of molding compound flowing between and over the semiconductor dice.
    Type: Application
    Filed: May 31, 2012
    Publication date: September 20, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Stephen L. James
  • Publication number: 20120088853
    Abstract: Disclosed is a molding material for extrusion foam molding from which woody molded foam of high quality can be obtained. From the molding material, woody molded foam of high quality with no defects is efficiently produced. Constituent materials comprising woodmeal and a thermoplastic resin as major components and containing 1-5 wt % alkane having a molecular weight of 300-1,000 g/mol are melt-kneaded until the components come into an evenly dispersed state, and the resultant mixture is molded into pellets having a given diameter to obtain a molding material. Subsequently, this molding material is extrusion-molded into a given shape together with a blowing agent by means of an extrusion molding device, thereby obtaining woody molded foam.
    Type: Application
    Filed: May 13, 2010
    Publication date: April 12, 2012
    Inventors: Takeyasu Kikuchi, Kazumasa Morita, Koji Higashi, Yuichiro Nakamura
  • Patent number: 8118582
    Abstract: An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a cavity for receiving a coproduct of a wet biomass process and a binder and being operable to premix the coproduct and binder to produce a substantially homogeneous DDGS mixture; a high shear mixer having a receptacle for receiving the DDGS mixture and being operable to shear mix the mixture and produce very small DDGS particles; and, an agglomerator having an interior chamber sized and configured to receive and transform the DDGS particles into substantially spherical DDGS pellets.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: February 21, 2012
    Assignee: Purdue Research Foundation
    Inventors: Klein E. Ileleji, Kyle V. Probst
  • Publication number: 20120018923
    Abstract: A manufacturing line for fabricating a scintillator that includes a vat configured to receive a mixture of scintillator components. The mixture includes a dissolved acid solution comprising a rare earth element, a gallium compound, an aluminum compound, and a cerium salt. The vat is further configured to react a base solution with the mixture to form a precipitate. The manufacturing line further includes a separator configured to separate the precipitate from a remaining portion of the mixture, and a compaction device configured to compact the precipitate to form a green ceramic wafer.
    Type: Application
    Filed: July 20, 2010
    Publication date: January 26, 2012
    Inventors: Haochuan Jiang, Kevin Alan David
  • Patent number: 8066924
    Abstract: A method and apparatus for carrying out the method are for forming a sheet or film of thermoplastic polymer alloy by extruding an intimate blend of incompatible polymer materials, such as polypropylene dispersed in LLDPF, through an extruding die and stretching after extrusion.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: November 29, 2011
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 8038430
    Abstract: A method of coating metal wire with extrudate using an extrusion system. The method includes the steps of advancing the metal wire through an extrusion die of the extrusion system and extruding molten extrudate over the metal wire as the metal wire is advanced through the extrusion die. Image data is generated, using one or several electronic cameras, concurrently with the advancing, and extruding to provide visual feedback indicative of the concentricity or non-concentricity of extrudate surrounding the metal wire as the metal wire exits the extrusion die.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 18, 2011
    Assignee: Advanced Neuromodulation Systems, Inc.
    Inventors: John W. Swanson, Lucien M. Rucker
  • Patent number: 8029259
    Abstract: An array of nozzles is disclosed for forming multiple cellulose fibers. Each nozzle has a longitudinal central axis and includes a tube with a cross-section having a diameter through which an aqueous solution of cellulose and a solvent can be extruded into a molten filament. A first opening is present which surrounds each of the tubes. The first opening has a cross-section with a diameter, and each of the first openings is capable of emitting a pressurized gas which surrounds one of the extruded molten filaments. At least three second openings are spaced away from each of the first openings. Each of the second openings is capable of emitting a pressurized gas stream essentially parallel to the longitudinal central axis of each of the nozzles, and each of the pressurized gas streams functions to shroud one of the extruded molten filaments.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: October 4, 2011
    Assignee: Reifenhauser GmbH & Co. KG Maschinenfabrik
    Inventors: Douglas B. Brown, Jeffrey D. Stark, Carmen A. Granato, Sr., Duane K. Zacharias
  • Patent number: 8029260
    Abstract: An apparatus is disclosed for extruding cellulose fibers. The apparatus includes a first member, a second member and a third member all secured together. Multiple nozzles extend outward from the first member and each is designed to direct an aqueous cellulose solution therethrough. As the aqueous solution is extruded, it is accentuated and accelerated by pressurized gas flowing through the first member and the second member and out through first openings formed in the third member. The pressurized gas at least partially surrounds each nozzle and shelters the molten filaments extruded therefrom. The third member also has multiple second openings formed therethrough which are also connected to a source of pressurized gas. The pressurized gas streams exiting each of the second openings function to keep each of the molten filaments from contacting an adjacent molten filament.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: October 4, 2011
    Assignee: Reifenhauser GmbH & Co. KG Maschinenfabrik
    Inventors: Douglas B. Brown, Jeffrey D. Stark, Carmen A. Granato, Sr., Duane K. Zacharias
  • Patent number: 8017010
    Abstract: A device for filtering a liquid synthetic material. The device has a housing, a feed channel, a discharge channel, and backflow channels. The feed duct is subdivided into split-feed channels (2A, 2B). The cross-section of the orifice of the split-feed channels, where they open into the filter chambers, is smaller than the normal cross-section of the feed channels.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: September 13, 2011
    Assignee: Kreyenborg Verwaltungen und Beteiligungen GmbH & Co., KG
    Inventor: Stefan Woestmann
  • Publication number: 20110049763
    Abstract: The present invention relates to a method and to a device for injection molding plastic material, wherein the starting plastic material to be treated is first subjected to a pretreatment, wherein the plastic material is heated in a receiving container at a temperature below the melting temperature while constantly being mixed, and thereby at the same time is crystallized, dried and/or cleaned and/or the intrinsic viscosity thereof is increased. According to the invention, the plastic material pretreated in this way is transferred into a screw injection molding machine (10) having a screw (16) rotating in a housing (17) and being axially displaceable therein and/or acting as a piston, is plasticized in said screw, and molded into a molded part, for example a preform.
    Type: Application
    Filed: February 11, 2009
    Publication date: March 3, 2011
    Applicant: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin
  • Patent number: 7766637
    Abstract: An apparatus for a continuous encapsulation process is provided. The apparatus is a vibrating tubing used alone, in series, or in combination with an encapsulation apparatus, which is used alone or in series. The vibrating tubing is a flat coil, a standing spiral, or a flume. The encapsulation apparatus includes a winding having coils disposed in an aqueous gelling solution. The winding is rotatable about its longitudinal center axis. The winding has adjacently spaced coils forming a plurality of chambers. Objects to be encapsulated are added to the apparatus such that when the winding is rotated, the chambers transport a volume of objects through the length winding in the aqueous gelling solution in a predetermined time.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 3, 2010
    Assignee: FMC Corporation
    Inventors: Peder Oscar Andersen, Robert Kopesky, Christian Klein Larsen, Olav Gaserod, David Harvey, Sanhuang Tung
  • Patent number: 7695183
    Abstract: The apparatus is provided for impregnating a melt of polymer with a fluid working medium, such as, an expanding agent or an additive. Impregnation is carried out for the purpose of manufacturing foamed shaped parts using an injection molding machine. The impregnating body includes at least one melt channel formed in a gas permeable segment and a channel system for fluid infeed. The gas permeable material, e.g. sintered metal, separates the fluid from the stream of melt in the melt channel(s). Each melt channel has open pores at its inner surface which enable the impregnation. The melt channels can contain static mixers in the stream of melt to promote the distribution of the diffused fluid in the flow of melt.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 13, 2010
    Assignee: Sulzer Chemtech AG
    Inventor: Sasan Habibi-Naini
  • Patent number: 7594807
    Abstract: In a twin-screw extruder including a barrel, which has two screws disposed in parallel in its inside and an opening at one edge, and an extrusion molding die disposed to the opening side of the barrel through a straightening vane and a filter net, the straightening vane includes a first straightening vane and a second straightening vane, the first one has a hole forming region having plural through holes formed in a region whose size and shape are in agreement with the size and the shape of the inner periphery of the opening portion, and the second one has a hole structure whose size and shape of its inner periphery at one opening edge are in agreement with the size and the shape of the hole forming region, and its sectional area is reduced once in a process to the other opening edge and then expanded in a taper shape.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: September 29, 2009
    Assignee: NGK Insulators, Inc
    Inventor: Yasunori Yamazaki
  • Patent number: 7530463
    Abstract: A backwashable filtering device for thermoplastic plastics material is disclosed. The device can filter thermoplastic plastics material through one or more nests of screens in the filtering position, while submitting some nests of screens to the backwashing process that cleans them. The filtering position and the backwashing position are selectable by displacing one or more carrying bodies with respect to a housing and/or by displacing one or more control bodies with respect to the carrying bodies. The backwashing can be performed over an entire nest of screens or over a portion of a nest of screens. The nests of screens can be straight or curved.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: May 12, 2009
    Assignee: Erema Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin
  • Publication number: 20090110765
    Abstract: Disclosed is a hot-runner nozzle system, including: (i) a nozzle housing being configured to convey a molten molding material, (ii) a sieve being coupled with the nozzle housing, (iii) a nozzle tip being securely coupled relative to the sieve, and (iv) a retainer securely extending from the sieve, the retainer connecting with the nozzle tip.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 30, 2009
    Inventor: Sohail MOHAMMED
  • Patent number: 7448318
    Abstract: A machining waste metal recycling machine has an in-feed hopper. The hopper uses paired augers to move the waste metal through the hopper to a cutting and transporting auger. The hopper augers are powered independently from each other, and may be individually reversed or reversed as a group to clear jams. In the event a jam is not cleared through one or more reversal cycles, the remaining augers may be operated to clear the hopper, thereby avoiding the need for manual unloading. Within the hopper are one or more shear bars that are provided to sever bunches or bundles of machining waste and thereby clear tangles which might otherwise jam the augers. The cutting and transporting augers ultimately feed a reciprocating compactor having a movable gate with one or more grooves for controlled drainage of machining oil and other liquid, as the machining waste metal is compressed into pellets.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: November 11, 2008
    Inventor: Daniel J. Ralicki
  • Patent number: 7438550
    Abstract: A material processing plant comprises a first screw-type extruding machine and a second screw-type extruding machine downstream thereof. The screw-type extruding machines are connected to one another by means of a function casing which is embodied for displacement substantially to the side of a direction of flow out of a position of operation in a push-out direction.
    Type: Grant
    Filed: April 17, 2004
    Date of Patent: October 21, 2008
    Assignee: Coperion Werner & Pfleiderer GmbH & Co. KG
    Inventor: Rainer Munz
  • Patent number: 7419592
    Abstract: The invention relates to a device for filtering a fluid, especially a liquefied plastic, said device comprising a housing, a supply channel, a discharge channel and optionally backwash channels. At least two filter elements are arranged in corresponding filter regions in the flow path of the fluid, in a filter carrier which is mounted in such a way that in can be perpendicularly displaced in relation to the direction of flow, said filter elements being able to communication with the supply channel and the discharge channel. Each filter region comprises two supply partial channels which are worked in to the filter carrier or the housing and are oriented away from the filter regions towards the discharge channel. Said discharge channel comprises housing partial channels which flow together to form the discharge channel.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: September 2, 2008
    Assignee: Kreyenborg Verwaltungen und Beteilgungen GmbH & Co. KG
    Inventors: Robert Middler, Stefan Wostmann
  • Patent number: 7411163
    Abstract: The invention relates to a device (1) for providing a melt, in particular a plastic melt. Said device (1) comprises a feed unit (2) for material components, at least one purification unit (4) for the flowing melt, in particular a rotatable screening disc (5), and at least one sensor unit (17; 18; 19; 20; 21) for detecting one or more process parameters. The operation of the purification unit (4) can be influenced with the aid of said sensor unit, based on the filter-specific process data. The inventive device is configured in such a way that at least the type and dosage of the process materials that are supplied via the feed unit (2) and/or the processing parameters of said process materials can be controlled using the detected (17; 18; 19; 20; 21) process parameters and/or the filter-specific process data.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: August 12, 2008
    Assignee: Gneuss Kunststofftechnik GmbH
    Inventor: Detlef Gneuss
  • Publication number: 20080099953
    Abstract: An extrusion head is disposed over a substrate, and material is extruded through an oblique (e.g., semi-circular or tapered) outlet orifice of the extrusion head to form an associated extruded structure having an equilibrium shape that resists settling after being deposited on the substrate. The extrusion head includes fluidic channels having a flat surface formed by a flat first (e.g., metal) sheet, and an oblique (e.g., substantially semi-cylindrical) surface formed by elongated oblique trenches that are etched or otherwise formed in a second sheet. The fluidic channel communicates with the outlet orifice, which has a flat edge formed by the first sheet, and an oblique edge formed by an end of the oblique trench. The material is extruded through the outlet orifice such that its flat lower surface contacts the substrate, and its oblique upper surface faces away from the substrate. Two materials are co-extruded to form high aspect-ratio gridlines.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 1, 2008
    Applicant: Palo Alto Research Center Incorporated
    Inventors: David K. Fork, Thomas S. Zimmermann
  • Patent number: 7303706
    Abstract: The manufacture of foamed polymer trim parts making use of physical blowing agents requires the diffusion and sorption of the blowing agent in the polymer melt. Said diffusion and sorption are achieved by intensive mixing. Therefore a statical mixing device is enclosed in a pressure chamber, which comprises a hollow porous cylinder, which has a surface suitable for contacting the melt with the blowing agent. The protrusions extending at least partially into the melt flow cause a multiple reorganisation of the polymer melt, which leads to thorough mixing and shortens the diffusion path. The statical mixing device, which may be of modular construction, increases mass transport and mixing by a small modification of a conventional injection molding machine.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: December 4, 2007
    Assignee: Peguform GmbH
    Inventor: Christian Schlummer
  • Patent number: 7276194
    Abstract: A method is provided for manufacturing a thin-walled honeycomb ceramic substrate by extruding a plasticized ceramic batch material through a filter screen having wedge shaped filter wires to remove foreign particulate and agglomerated batch material. The filter wires are supported by a set of support wires attached substantially perpendicular to the filter wires. The support wires are may also be advantageously wedge shaped. The filter screen of the present invention may have a wear resistant layer at the surface of the screen, typically a boride or a nitride. The wear resistant coating may also be a nickel-based coating.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 2, 2007
    Assignee: Corning Incorporated
    Inventor: Mark A Shalkey
  • Patent number: 7267234
    Abstract: A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing (1) in which a sieving arrangement (17) is provided which includes at least two sieving sections (16) separated from one another. The melt to be filtered is supplied to the sieving sections (16) through at least one distributor (3). The distributor (3) includes at least one control body (9) for backflushing which is moveable within a housing (53) that is provided with an inlet opening (4) for the material to be filtered. The control body (9), in a filtering position, unblocks the influx of material to be filtered to all sieving sections (16) through connection channels (23). However, in a backflushing position, the control body (9) interrupts the influx of material to the filtering section (16) to be backflushed and interconnects the connection channel (23) of the sieving section (16) flushed back with a discharge channel (28) located in the control body (9).
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: September 11, 2007
    Assignee: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin, Wolfgang Dreu
  • Patent number: 7175411
    Abstract: The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer comprising a composition of high viscosity. More particularly, the present invention concerns cables having at least one covering layer comprising a polymeric composition comprising a mineral filler capable of imparting one or more specific properties to the aforesaid cables. In accordance with the present invention, said production process comprises the stages of: conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of said composition, into said extruder, filtering the material transferred and plasticized by the screw of said extruder; depositing said material onto said at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 13, 2007
    Assignee: Prysmian Cavi e Sistemi Energia S.R.L.
    Inventors: Sergio Belli, Angelo Giuseppe Locatelli, Giovanni Pozzati, Paolo Veggetti
  • Patent number: 7124895
    Abstract: A device for the continuous filtration of material blends, in particular for separating impurities from plastic melts. A housing has a hollow cylindrical filter disposed inside. An inside chamber is disposed inside the filter. An annular chamber is defined by the outer surface of the filter and an inside wall of the housing. A cleaning device removes the impurities retained on the filter by a motor driving about an axis coupled to pivot the filter inside the housing. The cleaning device has at least one wiper for removing in the radial direction impurities retained on the filter. A conveying device transports off the impurities removed from the filter by the wiper. The motor-driven filter and the conveying device are driven separately of each other.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 24, 2006
    Assignee: Ettlinger Kunststoffmaschinen GmbH
    Inventor: Roderich Ettlinger
  • Patent number: 7108500
    Abstract: Within a process for recycling of PET-material and/or objects of PET, the PET-material to be processed is heated and dried in the course of a pre-treatment step and simultaneously is crystallized at elevated temperature. This pre-treatment step is followed by a main-treatment step under vacuum. In this main-treatment step, the processed material is again dried and crystallized at a temperature that is higher than the temperature of the pre-treatment step. Preferably, also in the main-treatment step no plasticizing of the material takes place; the plasticizing or, respectively, melting of the material takes place only after the main-processing step. An apparatus for performing this process comprises a pre-processing device (3) in which the processed material is dried and simultaneously crystallized at elevated temperature, and, if desired, is also comminuted.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: September 19, 2006
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin
  • Patent number: 7090480
    Abstract: A method and an apparatus capable of extrusion molding a comparatively wide, thin ceramic sheet using a screw extruder while suppressing the wrinkling thereof. The molding apparatus includes a screw-type extruder and a mold at the forward end of the extruder is used to extrusion mold a ceramic sheet from the ceramic material introduced into the extruder by way of the mold. The extrusion molding is carried out while regulating the temperature of the portion of the ceramic material passing through the mold corresponding to each of a plurality of areas (control zones) into which the mold is divided.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: August 15, 2006
    Assignee: Denso Corporation
    Inventors: Tadashi Tsuruta, Satoru Yamaguchi
  • Patent number: 7077639
    Abstract: An mandrel for extrusion of hollow bodies, such as, polyvinyl chloride (PVC) hard, compact, and foamed pipes, includes an inner collar and an outer collar, and webs radially joining the inner collar and outer collar. The webs can be arranged twisted and/or offset in radial direction.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: July 18, 2006
    Assignee: American Maplan Corporation
    Inventors: Heinrich Dohmann, Reinhard Witt
  • Patent number: 6994795
    Abstract: An apparatus for filtering viscous material, in particular thermoplastic synthetic plastic material, comprises a screw (24), which presses the material to be cleaned from an upstream conduit (3) of a supply housing (2) towards a band-shaped screen (4). The screen (4) is abutted on its downstream side by a perforated plate (6) against the pressure of the supplied material. The band-shaped screen (4) can be displaced for replacement of a soiled band section by a fresh band section. For facilitating this displacement a device is provided, which comprises a closure means (30) that is disposed on the upstream side of the screen (4), by which closure means the upstream conduit (3) for the material to be filtered can be closed at least substantially. On the upstream side of this closure means (30) a storage space (36) for material to be cleaned is connected to the upstream conduit (3).
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: February 7, 2006
    Inventors: Helmut Bacher, Helmuth Schulz, Georg Wendelin
  • Patent number: 6893151
    Abstract: A system for delivering elastomeric media comprises a gear pump and a screw-type extruder which, viewed in the delivery direction of the pumping medium, is arranged in front of the gear pump and which comprises a screw and a screw casing. The screw casing has at least one conical part, and the screw has at least one tapering in the area of the conical part. For the controlled feeding of energy into the pumping medium, the screw is axially displaceable in the screw casing.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 17, 2005
    Assignee: Maag Pump Systems Textron AG
    Inventors: Joerg Giesler, Hans Sonder, Heinrich Holzer, Hans-Dieter Wagner, Michael Heinen
  • Patent number: 6852260
    Abstract: A process for preparing a cleansing bar having well-defined platelet striations therein which comprises extruding a cleansing bar composition having platelets therein to form a cleansing bar using an extruder having a perforated barrier across the cross section of the extruder, wherein the perforated barrier is located at a sufficient distance downstream from the spider to allow well-defined platelet striations to be observed in the finished cleansing bar with the human eye. The perforated barrier is located at a distance from the spider equal to at least about 60%, preferably at least about 70%, of the distance from the spider to the extruder cone outlet of the extruder. Generally, a standard extruder cone length from spider to cone outlet is about 483 mm to about 560 mm.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: February 8, 2005
    Assignee: Colgate-Palmolive Company
    Inventors: Liem Vu, Matthew Edstrom, Armando San Juan
  • Publication number: 20040166190
    Abstract: The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer comprising a composition of high viscosity. More particularly, the present invention concerns cables having at least one covering layer comprising a polymeric composition comprising a mineral filler capable of imparting one or more specific properties to the aforesaid cables. In accordance with the present invention, said production process comprises the stages of: conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of said composition, into said extruder, filtering the material transferred and plasticized by the screw of said extruder; depositing said material onto said at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.
    Type: Application
    Filed: February 27, 2004
    Publication date: August 26, 2004
    Applicant: Pirelli Cavi E Sistemi S.P.A.
    Inventors: Sergio Belli, Angelo Giuseppe Locatelli, Giovanni Pozzati, Paolo Veggetti
  • Patent number: 6743387
    Abstract: A process for producing cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at least one covering layer having a composition of high viscosity. cables with at least one covering layer are made from a polymeric composition having a mineral filler capable of imparting one or more specific properties to the cables. A production process includes conveying at least one conducting element inside of an extruder; feeding the polymeric material, optionally premixed with other components of the composition, into the extruder; filtering the material transferred and plasticized by the screw of said extruder; and depositing the material onto the at least one conducting element, the filtration operation being performed with a filtration efficiency greater than 0.8, preferably greater than 0.9.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: June 1, 2004
    Assignee: Pirelli Cavi E Sistemi S.p.A.
    Inventors: Sergio Belli, Angelo Giuseppe Locatelli, Giovanni Pozzati, Paolo Veggetti