Dividing Work To Form Plural Articles Patents (Class 264/157)
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Patent number: 6737002Abstract: A chip-on-flex HDI module is fabricated by dispensing encapsulant material onto the components of a populated dielectric film or sheet in an interrupted pattern which leaves the backsides of selected components free of encapsulant. The dispensing is accomplished by relative motion of the dispenser tip and the populated film, with the dispenser tip at a height slightly above the desired liquid fill height during dispensing. At the locations of the components which are to be free of encapsulant, the dispensing stops, and the tip may be raised to prevent residual viscous matter on the dispenser tip from contacting the backside of the exposed component.Type: GrantFiled: February 4, 2002Date of Patent: May 18, 2004Assignee: Lockheed Martin CorporationInventors: James Wilson Rose, Donald Leroy Lester, Christopher James Kapusta, Paul Alan McConnelee
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Publication number: 20040084801Abstract: A method of fabricating discrete risers for shelving units includes the step of providing a plurality of openable and closable mold segments arranged end to end along a continuous path, and circulating the plurality of mold segments through multiple revolutions of the continuous path such that the mold segments are closed while traveling along a molding section of the continuous path. A molten stream of plastic is continuously extruded at an upstream end of the molding section and into mold cavities of the closed or closing mold segments. A pressure differential is applied to the mold cavities of the closed mold segments to conform the molten stream of plastic to the mold cavities. A continuous train of interconnected risers is ejected at a downstream end of the molding section. Discrete risers are separated from the continuous train.Type: ApplicationFiled: November 4, 2002Publication date: May 6, 2004Inventors: Gregory S. Floyd, Robert G. States
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Patent number: 6726426Abstract: A combination book binding machine with a plastic coil forming machine, whereby a plastic spiral coil is formed at a first raised temperature, then cut to a length sufficient for the plastic spiral coil to bind a book, cooled and then advanced toward a receiving coil conveyor of a coil binding machine, for binding the book with a plastic coil at the lowered cooled temperature. The binding machine and method for spirally binding a sheaf of papers into a book uses an adjustable speed drive to rotate the cooled flexible plastic spiral coil into respective holes in the book. The book has a plurality of holes in a row adjacent one edge of the book to receive the leading edge of the plastic spiral binding coils. A cylindrically shaped mandrel is spaced apart from a glidable block. The plastic pre-formed spiral binding coil is fed onto the mandrel from the distal end thereof, with the leading edge of the binding element facing and spaced apart from the book.Type: GrantFiled: August 10, 2002Date of Patent: April 27, 2004Inventor: Norton Spiel
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Patent number: 6726791Abstract: A method for production of a layered product including at least two layers, a first primary layer and second mouldable layer, wherein a continuous supply of a primary layer material and a supply of mouldable material are provided and wherein the primary layer material and the mouldable material are combined in moulding cavities, wherein the moulding cavities are placed in an endless loop, and the mouldable material and the primary layer are combined by placing the mouldable material on the primary layer about and/or in communication with the moulding cavities.Type: GrantFiled: October 18, 1999Date of Patent: April 27, 2004Assignee: Coloplast A/SInventors: Jakob Ă˜elund, Jan Petersen, Jan Marcussen
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Patent number: 6722030Abstract: A method is provided for manufacturing a saw filter in which a carrier plate 10 that can be separated into base plates 2 is respectively provided with interconnects in the base plate regions A and these are contacted to the active structures of SAW chips 1 in flip-chip technique. A metal foil 3 or plastic film 4 is placed onto the chip-equipped carrier plate 10 and, for example, is pressure and heat treated such that it envelopes each chip 1 (except for the chip surface facing toward the carrier plate 10) and lies hermetically tight on the carrier plate surface in regions between the chips.Type: GrantFiled: November 13, 2000Date of Patent: April 20, 2004Assignee: EPCOS AGInventors: Alois Stelzl, Hans Krueger, Peter Demmer
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Publication number: 20040065044Abstract: The invention relates to a reinforcing bar for mineral building materials, particularly for cement. The inventive reinforcing bar (10) is made of a bar of plastic material reinforced by fibre, which has a central, elongate core (12) and several ribs (14) which extend along the length of the core, which are disposed at an angular distance from each other, which form a cross or a star in the cross section thereof and which are twisted around the core axis (16) in a helical manner.Type: ApplicationFiled: August 21, 2003Publication date: April 8, 2004Inventor: Alexander Bleibler
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Patent number: 6713003Abstract: A method of manufacturing a wrist pad, comprising the steps of: a. Knead and stir a mixture having natural rubber and foaming agent repeatedly to make it well mixed. b. Press the well mixed mixture into a plank element. c. Form an arched portion on the plank element. d. Foam the plank element with the arched portion so that a chemical reaction will occur between the natural rubber and the foaming agent to produce an air pressure for forming the plank element to a wrist pad, and e. Cool the foamed wrist pad and cut the wrist pad into a predetermined shape.Type: GrantFiled: September 6, 2002Date of Patent: March 30, 2004Inventor: Semi Kao
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Publication number: 20040018264Abstract: The invention consists of a device and a method for sectioning of organs and irregular tissue blocks into tissue sections of a predefined thickness and orientation, in one uniform working process. The tissue is embedded into an alginate polymer, which is poured into an embedding container with two opposite arrays of parallel grooves. After hardening, the polymer can be sectioned in slices of a predetermined thickness. This is achieved by razor blade cuts through an array of parallel grooves in the embedding container. Finally, the tissue and alginate polymer can be removed by removing the side of the embedding container resulting in a series of parallel sections of predefined and often equal thickness.Type: ApplicationFiled: April 29, 2003Publication date: January 29, 2004Inventors: Graziano Cancian, Carsten Reides Bjarkam, Jens Christian Hedemann Sorensen, Ulrik Kjaergaard Sorensen
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Publication number: 20040012099Abstract: A semiconductor device has a substrate 11 on which a wiring pattern 14 is formed, a semiconductor die 20 mounted on the substrate 11, a sealed part 51 sealing the semiconductor die 20 on the substrate 11, and a heat sink 32 for the semiconductor die 20 supported above the substrate 11 by the sealed part 51. The heat sink is in electrical contact with the grounding line of semiconductor die 20.Type: ApplicationFiled: February 26, 2003Publication date: January 22, 2004Inventor: Toshinori Nakayama
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Publication number: 20040000740Abstract: A process of manufacturing of shoes insole is disclosed. In the present method, a high-density thermoplastic material and a low density thermoplastic material are undergone a rolling process of the rollers of the pressing machine. The top and the bottom of the materials are together pressed with plastic woven cloth and non-woven cloth such that a layer of dual density rubber board is adhered in between the plastic woven cloth and the non-woven cloth to form into an integrally formed dual density complex rubber board. The present process reduces the fabrication time and the production cost is reduced as the capital for equipments is greatly reduced. The present invention also allows the lowering of cost for shoes insole.Type: ApplicationFiled: June 26, 2002Publication date: January 1, 2004Inventor: Cheng-Te Chi
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Publication number: 20030231908Abstract: A centrifugal casting die according to the present invention includes a cylindrical die body, a backup layer releasably bonded to the inner surface 12b of the die body, and a top layer bonded to be integral to the inner surface of the backup layer, for holding a centrifugally casting material supplied to the inner surface thereof, whereby the centrifugally casting material having a uniform thickness is easily releasable from the centrifugal casting die without using a die-lubricant.Type: ApplicationFiled: May 2, 2003Publication date: December 18, 2003Applicant: CANON KASEI KABUSHIKI KAISHAInventors: Takashi Tomiyama, Hisao Kumano, Koichi Sato, Taku Hatanaka
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Publication number: 20030227097Abstract: A method of fabricating a polymer part having a negative thermal expansion coefficient includes injecting a thermotropic polymer under controlled temperature and pressure conditions into a mold having an injection inlet substantially equal to the thickness of the part and a length that causes elongation of the polymer.Type: ApplicationFiled: June 2, 2003Publication date: December 11, 2003Applicant: ALCATELInventors: Valerie Girardon, Herve Loury
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Patent number: 6645408Abstract: Curled decorative grasses having a texture or appearance simulating the texture or appearance of paper on at least a portion of one surface thereof are disclosed, as are methods for making such curled decorative grasses from materials wherein at least a portion of one surface of the materials is modified to simulate the texture or appearance of paper.Type: GrantFiled: March 27, 2001Date of Patent: November 11, 2003Assignee: Southpac Trust International, Inc.Inventor: Donald E. Weder
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Publication number: 20030205837Abstract: Disclosed are a device, in which a plurality of components are vertically stacked on a substrate without any cavity being formed thereon, and a method for manufacturing the device, thereby easily manufacturing the device, improving the productivity of the device, and reducing the production cost of the device. The device of the present invention is manufactured by mounting a plurality of first components on a base substrate and forming supporters on the upper surface of the base substrate so that two or more of the supporters are arranged around each of the first components, molding the upper surface of the base substrate including the first components and the supporters, dicing the molded base substrate into device units, and mounting a second component on each of the upper surfaces of the diced parts of the base substrate.Type: ApplicationFiled: June 25, 2002Publication date: November 6, 2003Applicant: Samsung Electro-Mechanics Co. Ltd.Inventors: Jae Il You, Jong Tae Kim
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Patent number: 6641764Abstract: The present invention relates to a method and an apparatus for producing a toothbrush comprising a handle and a brush head provided with a plurality of bristle bundles. A basic body of a brush head is produced preferably from a hard component in an injection-moulding means, the bristle bundles being embedded at their ends in bristle-bundle holding sections which are connected by bridge portions. These bridge portions are cut through and the basic body of the brush head is encompassed preferably with a soft component by injection moulding.Type: GrantFiled: June 7, 2002Date of Patent: November 4, 2003Assignee: M + C Schffer GmbHInventor: Andreas Lanvers
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Patent number: 6638692Abstract: The invention is directed toward techniques for stamping optical data storage disks. A master is first created to include several distinct information regions etched upon a master surface. The master is then used to create one or more stampers. The stampers include a number of distinct stamper regions in locations corresponding to locations of the distinct information regions on the master. The stamper is then used to create a number of first replica disks that include distinct replicated regions. The distinct replicated regions are removed from the first replica disks to define second disks.Type: GrantFiled: July 16, 2001Date of Patent: October 28, 2003Assignee: Imation Corp.Inventors: Anthony O. Banal, Ted L. Bahns, Kristi L. Chavez, Donald J. Kerfeld, Chad R. Sandstrom
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Publication number: 20030168760Abstract: A method of making and assembling foam crown molding includes shaping a volume of foam into at least one strip having a desired shape of crown molding, finishing the at least one strip, and mounting the at least one strip onto at least one partition for decorating the at least one partition.Type: ApplicationFiled: March 10, 2003Publication date: September 11, 2003Inventor: Salvatore Badalamenti
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Publication number: 20030164573Abstract: A method for producing a zipper for use in the production of reclosable plastic bags of the type having the zipper extending across a top end of the bag. The zipper has a first profile member and a second profile member that is interengageable with the first profile member. At bag length intervals of the zipper notches are formed by removing at least a portion of the first profile member and a portion of said second profile member. A mold is positioned about each of the notches and a molten thermoplastic material is introduced into the mold cavity filling the notch and extending beyond the notch and over the zipper top so that when the molten thermoplastic material is cooled an end stop is formed in situ at each of said notches.Type: ApplicationFiled: April 4, 2003Publication date: September 4, 2003Inventor: Zdenek Machacek
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Patent number: 6609294Abstract: A novel process for fabricating metal clad laminates used in the manufacture of printed wiring boards. The process which eliminates multiple use separator plates within laminate books during buildup and pressing, utilizes a sacrificial separator sheet between copper sheets and wherein the separator sheet remains intact throughout the pressing and cutting steps and is finally removed after the laminates have been sized to the desired dimensions. This process provides time and cost savings, as well as a significant increase in quality and quantity of the laminates produced.Type: GrantFiled: September 27, 2000Date of Patent: August 26, 2003Assignee: Polyclad Laminates, Inc.Inventors: Christopher Vernon Smith, Richard Allen Correia, Ed Carignan
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Publication number: 20030151172Abstract: A method for continuously forming discrete hollow parts includes extruding at least one continuous stream of molten plastic. A plurality of mold segments are arranged such that one or more segments periodically close on the one or more streams of molten plastic and define discrete part forming cavities when closed. A pressure differential is created within the discrete part forming cavities to shape the molten plastic accordingly. Air or another gas is replenished within the discrete hollow parts either in the discrete part forming cavities, or nearly immediately upon discharge from the cavities. The discrete hollow parts are then cooled. The apparatus for forming discrete hollow parts in this manner has an extruder and a plurality of the mold segments including one or more segments that can be closed on the plastic stream or streams. The pressure differential is applied by the apparatus to the closed mold segments. The hollow part interior is replenished either by the apparatus or manually by an operator.Type: ApplicationFiled: December 20, 2002Publication date: August 14, 2003Inventors: Greg Floyd, Erik Skov
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Publication number: 20030139131Abstract: Knives (10, 20) for carving out meat slabs (1), whose cutting edges (14, 24) are ground in such a way that they do not cut into the rib bones (2), or back bones), and at the same time assure cutting as closely as possible to the rib or back bones.Type: ApplicationFiled: January 24, 2003Publication date: July 24, 2003Applicant: Schmid & Wezel GmbH & Co.Inventor: Nobert Lay
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Patent number: 6596369Abstract: A flat semi-finished product includes a filled fluoroplastics substrate in the form of a sheet, which is coated at least partially on at least one surface with a soft, thin coating of fluoroplastics. The substrate material of the sheet has a Shore-D hardness of at least 65 and the average layer thickness of the thin sheet coating is at most 20 &mgr;m. A component, in particular a flat gasket, is made from the semi-finished product. A process for the production thereof is also provided.Type: GrantFiled: April 19, 2001Date of Patent: July 22, 2003Assignee: SGL Carbon AGInventors: Oswin Ă–ttinger, Manfred Jung, Silvia Mechen
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Patent number: 6592790Abstract: Preferred methods for manufacturing such fibers involve subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers.Type: GrantFiled: April 11, 2001Date of Patent: July 15, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler
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Patent number: 6588411Abstract: The method of the present invention comprises inserting a moldable slug having a plurality of longitudinally oriented resin impregnated predominantly glass fiber filaments into a bow limb profiling mold. The mold consists of two halves, the first half containing a female cavity and a second half having a matching fitted male section. The cavity receives a pre-determined volume and weight of continuous longitudinal fibrous reinforcement material and plastic resin matrix material. Heat and pressure are applied during initial curing and the uncured end is removed. The slug is then finally cured and the slug is severed to form a right limb portion and a left limb portion.Type: GrantFiled: September 27, 1996Date of Patent: July 8, 2003Assignee: Bear Archery, LLCInventor: Gary L. Simonds
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Patent number: 6569368Abstract: A method for producing a zipper for use in the production of reclosable plastic bags of the type having the zipper extending across a top end of the bag. The zipper has a first profile member and a second profile member that is interengageable with the first profile member. At bag length intervals of the zipper notches are formed by removing at least a portion of the first profile member and a portion of said second profile member. A mold is positioned about each of the notches and a molten thermoplastic material is introduced into the mold cavity filling the notch and extending beyond the notch and over the zipper top so that when the molten thermoplastic material is cooled an end stop is formed in situ at each of said notches.Type: GrantFiled: July 31, 2001Date of Patent: May 27, 2003Assignee: Illinois Tool Works Inc.Inventor: Zdenek Machacek
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Publication number: 20030094729Abstract: A method for making aerated concrete blocks includes dispensing materials for making aerated concrete into a mold and allowing the materials to rise and stiffen into a body. The body may be divided into an array of blocks which are then cured. At least one passageway may be formed in each block, such as by drilling. The drilling may include drilling a plurality of spaced apart passageways through each block, and each passageway may have a circular cylindrical shape. The passageways permit easier grasping by the mason, reduce the weight without significantly compromising strength, and facilitate positioning of blocks during construction of a wall to facilitate the placement of vertical reinforcing members in aligned passageways. The positioning of the passageways in each of the blocks may assist alignment of adjacent passageways, especially at wall corners.Type: ApplicationFiled: December 5, 2002Publication date: May 22, 2003Applicant: Consolidated Minerals, Inc.Inventor: Frederick Browne Gregg
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Patent number: 6565349Abstract: A production line including a molding press for molding a resin on a strand of material and a cutting press for cutting parts from the strand. The production line feeds the strand at a uniform rate without slack. The cutting press includes a die that moves toward and away from the strand. The die moves transversely to the strand to transport cut parts.Type: GrantFiled: July 16, 1999Date of Patent: May 20, 2003Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Yukitaka Tanaka, Fusatomo Miyake
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Patent number: 6565780Abstract: A method is provided for making ligneous material boards into an endless board strand with a continuously operating press. The press includes two flexible endless steel belts which take the press material between them and carry it through the press. The steel belts thrust with friction-reducing elements against heated press plates of the press table and press ram and a cooling system that follows. The cooling system is configured as a double-belt holding apparatus with an applicable holding pressure up to a maximum of 0 to 0.05 N/mm2. A diagonal sawing apparatus, which is disposed directly behind the continuously operating press and ahead of the cooling system, divides the board strand into single boards. Several rows of coolant spray nozzles disposed on the backs of the holding belts making contact with the single boards.Type: GrantFiled: February 6, 2001Date of Patent: May 20, 2003Assignee: Maschinenfabrik J. Dieffenbacher GmbH & Co.Inventor: Gernot von Haas
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Publication number: 20030090024Abstract: A method of making molded components including supplying a plastic material to a mold to form a molded article and actuating a separating apparatus to at least partially separate the molded article into at least two components. An apparatus for making molded components including a cavity, a separating apparatus coupled to the cavity and configured to at least partially separate a molded article into at least two components.Type: ApplicationFiled: November 14, 2001Publication date: May 15, 2003Applicant: Rubbermaid IncorporatedInventors: Erik L. Skov, Gregory S. Floyd
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Patent number: 6551539Abstract: Methods of forming a releasable strap of hook and loop material and resulting products are shown. The strap has a hook side and a loop side, the hooks being formed of synthetic resin on a mold roll defining a multiplicity of hook mold cavities. A method is shown comprising providing a mold roll having at least one relatively wide hook molding region over which hook mold cavities are distributed and, preferably at least at one side, a relatively narrow region devoid of hooks, and utilizing the mold roll to form a continuous sheet of material having on one side a wide band of loop-engageable hooks and preferably an adjacent relatively narrow band devoid of hooks, providing loops on the opposite side of the material, and repeatedly cutting the material at a substantial angle to the machine direction.Type: GrantFiled: September 19, 2000Date of Patent: April 22, 2003Assignee: Velcro Industries B.V.Inventors: Peter Leach, Michael Carbonneau, Matthew Raimer
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Publication number: 20030057590Abstract: An extended component made of fibre-reinforced thermoplastic materials, in particular a screw (1) that contains a corresponding proportion of fibres. Carbon fibres shaped as endles fibres extend in an at least approximately parallel direction to the centre line of the screw (1) in the area of the head (2) of the adjacent thread turns of the shaft (5). At the surface of the remaining part of the threaded portion, the fibre follow the contour of the thread in the axial direction of the part. The fibres in the core of this section next to the end of the screw are distrubuted in an increasingly random manner towards the free end of the screw.Type: ApplicationFiled: September 5, 1997Publication date: March 27, 2003Inventors: URS LOHER, JORG MAYER, ROGER TOGININI, THOMAS WEGENER, ERIC WINERMANTEL
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Patent number: 6533970Abstract: A method for making aerated concrete blocks includes dispensing materials for making aerated concrete into a mold and allowing the materials to rise and stiffen into a body. The body may be divided into an array of blocks which are then cured. At least one passageway may be formed in each block, such as by drilling. The drilling may include drilling a plurality of spaced apart passageways through each block, and each passageway may have a circular cylindrical shape. The passageways permit easier grasping by the mason, reduce the weight without significantly compromising strength, and facilitate positioning of blocks during construction of a wall to facilitate the placement of vertical reinforcing members in aligned passageways. The positioning of the passageways in each of the blocks may assist alignment of adjacent passageways, especially at wall corners.Type: GrantFiled: June 30, 2000Date of Patent: March 18, 2003Assignee: Consolidated Minerals, Inc.Inventor: Frederick Browne Gregg
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Publication number: 20030049408Abstract: A slider device and methods of making. The slider device is for use with a resealable package having a zipper closure, and includes a top wall with first and second ends, a spreader depending from the top wall, a first sidewall with a first hook construction extending therefrom, and a second side wall with a second hook construction extending therefrom. An extended length of profiled material is extruded and can be converted to form individual slider devices. The spreader can be tapered, either in its width or the distance in which is depends from the top wall. These slider devices can be incorporated into resealable packages.Type: ApplicationFiled: October 28, 2002Publication date: March 13, 2003Inventor: James E. Buchman
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Patent number: 6531081Abstract: A slider device and methods of making. The slider device is for use with a resealable package having a zipper closure, and includes a top wall with first and second ends, a spreader depending from the top wall, a first sidewall with a first hook construction extending therefrom, and a second side wall with a second hook construction extending therefrom. An extended length of profiled material is extruded and can be converted to form individual slider devices. The spreader can be tapered, either in its width or the distance in which is depends from the top wall. These slider devices can be incorporated into resealable packages.Type: GrantFiled: June 22, 2000Date of Patent: March 11, 2003Assignee: Reynolds Consumer Products, Inc.Inventor: James E. Buchman
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Publication number: 20030030171Abstract: The object of the present invention is to provide a method for manufacturing a product of thermoplastic resin and/or thermoplastic elastomer with materials of high recycle capability, preventing the productivity drop and the cost increase as well as the damage caused by the contact between semi-finished products and a drawing machine. A plurality of semi-finished moles and a drawing element are molded integrally by an extruder. The semi-finished moles are separated from the drawing element by cutting. The semi-finished moles separated from the drawing element are cut in accordance with a given length to produce a mole.Type: ApplicationFiled: June 19, 2002Publication date: February 13, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventor: Toshihiko Suenaga
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Publication number: 20030016620Abstract: A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit.Type: ApplicationFiled: September 23, 2002Publication date: January 23, 2003Inventors: Akio Mishima, Toru Katakura
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Publication number: 20020175443Abstract: A method for manufacturing a passenger airbag housing using a continuous flow or constant cross-section process, the process will enable maximum design flexibility when multiple materials are capable of being used. The method will have a short design and tooling lead-time providing lean processing and a common footprint over a family of designs. A method of structurally reinforcing a passenger air bag housing by inserting a structural member into the continuous flow or constant cross-section process.Type: ApplicationFiled: March 12, 2002Publication date: November 28, 2002Inventors: Carl H. Visconti, Ryan T. Pinsenschaum, Steven A. Damian
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Curled decorative grass having a texture or appearance simulating the texture or appearance of paper
Publication number: 20020176959Abstract: Curled decorative grasses having a texture or appearance simulating the texture or appearance of paper on at least a portion of one surface thereof are disclosed, as are methods for making such curled decorative grasses from materials wherein at least a portion of one surface of the materials is modified to simulate the texture or appearance of paper.Type: ApplicationFiled: March 27, 2001Publication date: November 28, 2002Inventor: Donald E. Weder -
Patent number: 6468454Abstract: The invention relates to a method for shaping the surface of extruded profiles made of thermoplastic materials with a device which is profiled to the shaping surface such that it is complimentary to the demanded shaping dimensions and presses into the continuous profile. The invention provides a method and device with whose simple, economic and high uniformity permit a material-saving production of profiles while completely adhering to the required stability at the same time. To this end, the shaping device presses the desired shaping dimensions into the continuous profile such that the wall strength of the surrounding edges of the impressions is reduced and work-hardened. The profiles are cooled and shaped into a dimensionally stable state in such a way that the height of the impressions at least correspond to the halved wall strengths of the continuous profile.Type: GrantFiled: March 30, 2000Date of Patent: October 22, 2002Assignee: Rehau & AG & Co.Inventors: Hans-JĂ¼rgen Westphal, Michael Schöbel, Thomas Heinl, Hartmut Schinzel, Klaus Dittmann
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Patent number: 6464915Abstract: An apparatus and method for forming tapered shakes with varying widths is provided. The apparatus and method include an extruder with a tapered configuration for making a tapered extrusion, a slitter for slitting the extrusion in a generally longitudinal direction, a cutter for cutting the extrusion in a generally transverse direction, and a timer for controlling operation of the cutter. The invention further provides for a continuous apparatus and method for continuously forming plastic tapered shakes that simulate traditional wooden shakes.Type: GrantFiled: February 16, 2000Date of Patent: October 15, 2002Inventor: Randall V. Schaen
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Patent number: 6451236Abstract: A method of making photochromic thermoplastic wherein the material is extruded into a length or lengths having at least one relatively small cross-sectional dimension. The length or lengths are treated with a solution of photochromic dye dissolved in a solvent, for example, cyclohexanone, which attacks the material. The length or lengths have a surface area-to-volume ratio sufficiently large to absorb an effective amount of the dye at their surface or surfaces. The length or lengths are dried to evaporate the solvent. The length or lengths are heated during the treating and drying steps. The dried length or lengths are cut into smaller pieces which may be introduced directly into a molding machine to form photochromic articles. Where a plurality of lengths are provided, the surfaces thereof are maintained separated from one another during the treating and drying steps.Type: GrantFiled: February 2, 2000Date of Patent: September 17, 2002Assignee: Gentex Optics, Inc.Inventors: Robert A. Sallavanti, Michael J. Lubianetsky
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Patent number: 6444301Abstract: Polymeric films including a layer of propylene resin having microvoids therein, the microvoids having been formed by stretching a web containing the beta-form of polypropylene, have shown low static cling when being unwound from rolls in labelling operations and also during destacking of pre-formed labels. The invention provides labels formed from such films.Type: GrantFiled: March 18, 1998Date of Patent: September 3, 2002Assignee: Hoechst Trespaphan GmbHInventors: Paul Malcolm Mackenzie Davidson, Rebecca Karen Govier, Helen Ann Biddiscombe, Marc Fritz Manfred Ott
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Patent number: 6440339Abstract: A corded earplug and a method of making a corded earplug, including providing a flexible cord material. Providing a mold member having at least one mold opening of a shape to produce at least an earplug portion inserting a short portion of the flexible cord material into the interior of the mold opening. Providing plastic material to form the earplug portion, and injecting the plastic material into the mold opening to surround the short portion of the cord material and to integrally form the earplug portion with the short portion of the cord material bonded within the earplug portion.Type: GrantFiled: October 14, 1999Date of Patent: August 27, 2002Assignee: Moldex -Metric, Inc.Inventors: Mark Magidson, Crest K Turdjiam
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Patent number: 6436324Abstract: Curled decorative grass having a variety of configurations and methods for making such decorative grass is provided which, because of its increased bulk, can also be used as a packing material, an animal bedding, cat litter, mulch for soil and a media for plants. The curled decorative grass is produced by curling a substantially flat sheet of material and thereafter cutting the resulting curled sheet of material; or by cutting a pre-curled material.Type: GrantFiled: June 5, 2000Date of Patent: August 20, 2002Assignee: Southpac Trust International, Inc.Inventors: Donald E. Weder, William F. Straeter, Joseph G. Straeter, Franklin J. Craig, Michael J. King, Michael R. Klemme, Sonny K. Burnside
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Publication number: 20020105115Abstract: Multiple parts may be molded from a single extruded parison. As the parison is extruded, it is slit vertically to divide the parison into two or more parison portions. A mold is then closed about the parison portion with a mold separator separating the mold portions. Each portion of the parison can then be formed into a separate molded part. The molding may be achieved by positive internal pressure similar to blow molding or by applying a vacuum to mold portions so that the forming process is similar to thermal forming.Type: ApplicationFiled: February 8, 2001Publication date: August 8, 2002Inventor: Changize Sadr
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Patent number: 6416619Abstract: A system for making wallboard or backerboard sheets may include a mixer for mixing materials for making aerated concrete, at least one face layer supply, and a former downstream from the mixer. The former is for forming core material having opposing first and second major surfaces and comprising aerated concrete, and for securing at least one face layer from the at least one face layer supply onto at least one of the first and second major surfaces of the core material. The system may also include a cutter downstream from the former for cutting the core material and at least one face layer secured thereto into a plurality of wallboard or backerboard sheets. The provision of aerated concrete for the core provides many key advantages over conventional gypsum wallboard sheets, and/or conventional backerboard sheets, such as gypsum greenboard or cementitious backerboard, for example.Type: GrantFiled: October 6, 2000Date of Patent: July 9, 2002Assignee: Consolidated Minerals, Inc.Inventors: Frederick Browne Gregg, Leslie G. Bromwell
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Patent number: 6409855Abstract: A method for making wallboard or backerboard sheets which are relatively lightweight, strong, and which have good fire resistance, thermal insulation, and sound absorbing properties includes forming core material having opposing first and second major surfaces and comprising aerated concrete, securing at least one face layer on at least one of the first and second major surfaces of the core material, and cutting the core material and at least one face layer secured thereto into a plurality of wallboard or backerboard sheets. The provision of aerated concrete for the core provides many key advantages over conventional gypsum wallboard sheets, and/or conventional backerboard sheets, such as gypsum greenboard or cementitious backerboard, for example. In one class of embodiments, the method may further include curing the core material prior to securing the at least one face layer thereto. In another class, the method may further include curing the core material after securing the at least one face layer thereto.Type: GrantFiled: October 6, 2000Date of Patent: June 25, 2002Assignee: Consolidated Minerals, Inc.Inventors: Frederick Browne Gregg, Leslie G. Bromwell
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Patent number: 6406651Abstract: Decorative grasses having a texture and/or appearance assimilating the texture and/or appearance of paper are disclosed, as are method for making such decorative grasses from materials wherein at least one surface of the materials is modified to assimilate the texture and/or appearance of paper.Type: GrantFiled: February 7, 2000Date of Patent: June 18, 2002Assignee: Southpac Trust Int'l. Inc.Inventor: Donald E. Weder
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Patent number: 6395113Abstract: A process is proposed for producing non-combustible moulded articles from blown vermiculite, the blown vermiculite granules being mixed with an inorganic binder and then pressed. The blown vermiculite granules are mixed with a solution of an inorganic binder, the vermiculite granules once mixed are pre-pressed, cut to the shape required and the cut blanks are pressed non-continuously at at least room temperature and preferably at temperatures of at least 100° C. and pressures of at least 0.3 N/mm2 to ensure that all solvent residues are removed from the finished non-combustible moulded article.Type: GrantFiled: August 18, 1998Date of Patent: May 28, 2002Assignee: Thermax Brandschutzbauteile GmbHInventor: Erwin Tomandl
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Patent number: 6361727Abstract: Brassiere underwires are made in a three step process in which, initially, pairs of injection molded polyamide tips are formed on a continuous flexible strand of carbon fiber or aramid fiber material which can be baked to impart stiffness thereto. In a second step, the strand is cut between the tips to form lengths having the tips at extremities thereof. The lengths are then shaped in a half barrel or plate mold and baked to harden the materials.Type: GrantFiled: February 24, 2000Date of Patent: March 26, 2002Inventor: Gerhard Fildan