With Shaping Between Extruding And Cutting Steps Patents (Class 264/151)
  • Patent number: 7749352
    Abstract: Non-fractured, non-fibrillatable short fibers, for reinforcing matrix materials such as concrete, have substantially uniform transverse cross-sectional areas along their length for maximum efficiency in pull-out resistance, and two different tapering characteristics along their lengths. Preferred bi-tapered fibers of the invention have a high modulus of elasticity in the range of 5-250 Gigapascal and are preferably modulated in both tapering dimensions. Matrix materials containing the fibers, as well as a method for making the fibers, are disclosed.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: July 6, 2010
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Anandakumar Ranganathan, Klaus-Alexander Rieder
  • Patent number: 7713457
    Abstract: Provided are, among other things, systems, methods and techniques for manufacturing sheet material. In one representative embodiment, a sheet of fabric material is positioned across a patterning template that has a number of openings; and the sheet of fabric material and the patterning template are fed through an extrusion device in which extrusion material coats the fabric material and forces the fabric material into the openings in the patterning template, thereby producing a composite sheet material.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: May 11, 2010
    Assignee: Dynasty Footwear, Ltd.
    Inventor: John C. S. Koo
  • Patent number: 7704437
    Abstract: A compounded rubber, which is made up of an NBR polymer, an organic peroxide and a blowing agent, to which 1 to 100 parts by weight of a synthetic silicic acid serving as a reinforcing filler and 10 to 200 parts by weight of precipitated calcium carbonate having a prismatic particle shape and serving as a filler are added to 100 parts by weight of the NBR polymer, is extrusion molded by a continuous extruder, and heated by HA heating and UHF heating in combination throughout the rubber to cause vulcanization and expansion, thereby providing a thick sponge having a homogenous cell structure. The sponge is passed through press rolls, and the resulting sheet stock is cut or punched with a cutting or punching machine into pieces of a desired form to obtain an applicator for cosmetics.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: April 27, 2010
    Assignee: Nishikawa Rubber Co., Ltd.
    Inventors: Yuichi Yamato, Kenji Kurisu
  • Patent number: 7670540
    Abstract: Disclosed herein are an apparatus and method for manufacturing a balloon catheter in which a non-contact type laser perforator and printer are separately provided above a primary extruder such that inflation apertures can be uniformly perforated through a non-vulcanized lumen tube and simultaneously, tube cutting positions can be printed on the lumen tube at positions uniformly spaced apart from the inflation apertures without stopping a primary extrusion process. Also, a bond preventing agent layer is coated on the lumen tube at balloon inflating portions prior to cutting the tube, to facilitate a secondary extrusion of the tube. With this configuration, continuous and accurate perforation of inflation apertures is possible and automatic tube cutting can be achieved based on the printed tube cutting positions. Also, the present invention can compensate for a time delay due to a bond preventing agent application process and achieve high productivity and minimized loss of material.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: March 2, 2010
    Inventor: Keun-Ho Lee
  • Patent number: 7658874
    Abstract: An improved process for the pelletization of polymers is disclosed, using a die in which the die holes incorporate a reverse taper along at least a portion of the length thereof. Conditions for operation of an under melt cutter incorporating this die are also disclosed.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: February 9, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Richard Alan Jackson, Dennis Jack Royer, Marion G. Waggoner
  • Patent number: 7622063
    Abstract: A filter element in the form of a nonwoven self-supporting filtration web having rows of folded or corrugated spaced-apart pleats, the web containing continuous thermoplastic fibers a majority of which are aligned at 90°±20° with respect to the row direction. The filter element can be made by forming rows of pleats in such a nonwoven web and cutting the web to a desired size and shape. The filter elements can provide improved mechanical and filtration properties and can exhibit reduced susceptibility to pleat deformation and the loss of space between pleats.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: November 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Douglas C Sundet, Rahul R. Shah, John M. Brandner, Tien T. Wu
  • Publication number: 20090194617
    Abstract: The invention relates to a technically advantageous method of producing low-dust granules of polymer additives or polymer additive mixtures. The granule-forming polymer additives are mixed together, the mixture is converted into a workable mass and pressed through an orifice. The pre-shaped strand-like extruded mass is cooled and, while still in a workable state, formed into granules by rolling, impressing, cooling and comminuting.
    Type: Application
    Filed: January 14, 2005
    Publication date: August 6, 2009
    Applicant: CIBA SPECIALTY CHEMICALS HOLDING INC.
    Inventors: Benjamin BREITENSTEIN, Thomas Georg GFRORER, Rolf WALDNER, Pierre LUTZ
  • Publication number: 20090169885
    Abstract: Improved fibrous structural reinforcements (16) for castable compositions (14) are provided and methods for making the same. In one implementation, the improved fibrous structural reinforcements rely 16) on an amorphous crystalline component (10), an isotactic crystalline component (12) and profiled terminal ends (20, 22) to improve flexural properties. The isotactic crystalline component (12) provides an initial strength to the fiber (16) and the amorphous crystalline component (10) provides a latent strength once the fiber (16) is subjected to tension and flexural input in the castable construct (14). The profiled terminal ends (20, 22) lock into a cured keyway (301) in the castable construct (14), thereby providing further enhancement to the tensile strength.
    Type: Application
    Filed: November 13, 2006
    Publication date: July 2, 2009
    Applicant: POLYMER GROUP, INC.
    Inventor: Nick Carter
  • Publication number: 20090041544
    Abstract: A geonet having a length substantially greater than its width and including no more than first and second layers of strands. A first plurality of substantially parallel strands extends in the lengthwise direction and defines the first layer of strands, and a second plurality of substantially parallel strands is disposed on top of, and at an angle relative to, the first plurality of strands and defines the second layer of strands. The first and second plurality of strands are substantially incompressible and secured to one another at crossover locations. Geocomposites include geotextile bonded to at least one side of the geonet. The geonets/geocomposites are laid in geotechnical construction sites in the direction of expected drainage flow.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventor: Boyd J. Ramsey
  • Publication number: 20080303182
    Abstract: A method for the production of plates of thermoplastically extruded synthetic materials, particularly for TFT screens, wherein the plates are extruded in a conical manner. The conically extruded panels are extruded in a polishing stack, such as a three-roll polishing stack. At least one roll of the stack may have a conical profile.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 11, 2008
    Inventor: Walter Breyer
  • Publication number: 20080251963
    Abstract: A method and an injection mold for the production of profiled and at least partially elongated components out of liquid or viscous solidifying molding compounds, by said injection mold, the molding compound being injected into the mold cavity and transported away under steady extension of the mold cavity and under steady elongation of the component to be formed after the initial filling of the mold cavity. The molding compound transported away is transported out of the mold while molding compound is continuously being injected until the forming component reaches its final length. The mold has at least one mold insert whose surface is part of the peripheral surface of the mold cavity and which is supported in the mold in a movable way in longitudinal direction of the component to be formed so that the mold cavity forming the component can be expanded to the desired size and shape of the component inside and outside of the mold by a movement of the mold insert.
    Type: Application
    Filed: October 18, 2005
    Publication date: October 16, 2008
    Inventors: Gottfried Steiner, Thomas Krivec
  • Publication number: 20080088054
    Abstract: A method of manufacturing an ink stick for use in a phase change ink jet imaging device comprises heating phase change ink material to an extrusion temperature at which the phase change ink material is in a malleable state. The ink material is then extruded through an extrusion orifice to form an extruded rail of ink. The extruded rail of ink is then roll formed to partially form a portion of a shape transverse to the extrusion direction as the rail of ink moves in the extrusion direction. A swaging process is then carried out to further form and divide the extruded rail of ink into ink sticks.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 17, 2008
    Applicant: Xerox Corporation
    Inventors: Brent Rodney Jones, Gustavo J. Yusem, Edward F. Burress, Dan Leo Massopust
  • Publication number: 20080014410
    Abstract: Stretched articles, such as oriented polymeric films or fibers, having microstructure features on at least one surface thereof, and processes for making such articles, are disclosed. A method of making fibers comprises forming a polymeric film having a body having a first surface and a second surface and having a longitudinal dimension. The film also comprises a plurality of elongate microstructure features disposed on the first surface of the body in a direction substantially parallel to the longitudinal dimension of the body, wherein the elongate microstructure features are substantially parallel. The method further comprises stretching the polymeric film in a direction substantially parallel to the longitudinal dimension of the body, and fibrillating the stretched polymeric film along the longitudinal dimension of the body to provide one or more fibers, wherein each fiber has at least one microstructure feature thereon.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 17, 2008
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Thomas I. Insley
  • Publication number: 20080011488
    Abstract: A process for making packer elements for use in sealing an area between surfaces in a wellbore and packer elements formed from that process. The process includes extruding an elastomeric material to form a tubular structure and machining the outer surface of the tubular structure to provide a desired surface geometry. The tubular structure may be machined to provide a contoured surface geometry. The tubular structure with a contoured surface geometry may be machined to form a plurality of packer elements, which are separated by cutting the tubular structure.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 17, 2008
    Inventors: James R. White, Geoffrey A. Naylor, Michael T. Hooley
  • Patent number: 7244388
    Abstract: The invention concerns a process and an apparatus for producing hollow bodies of thermoplastic material by means of extrusion blow molding. A tubular preform of plasticised material is expanded beyond parts of a blow molding mold enclosing it, by means of increased external pressure, wherein the preform, prior to closure of the mold halves, is spread transversely with respect to the extrusion direction and in a separation plane of the blow molding mold, in such a way that it extends between the lateral edges of the mold cavity of the blow molding mold. Prior to removal of the article from the blow molding mold, the bulge portion produced after closure of the blow molding mold is cut open along its length at each of the two sides of the mold at the respective edges extending in the extrusion direction.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: July 17, 2007
    Assignee: Kautex Maschinenbau GmbH
    Inventor: Wolfgang Kummer
  • Patent number: 7175800
    Abstract: A method and apparatus for vacuum thermoforming disposable drink cups lids including the step of imparting printing to the lids in two or more colors while they are in contact with the vacuum thermoforming platen.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: February 13, 2007
    Inventor: Ivonis M. Mazzarolo
  • Patent number: 7135063
    Abstract: Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional stability, resiliency, abrasion resistance and other properties making them attractive for use as packaging materials.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: November 14, 2006
    Assignee: Amylex Corporation
    Inventors: Hans G. Franke, Donald R. Bittner
  • Patent number: 7014800
    Abstract: Bristles for applying media are produced in that a filament, which can be cut into bristles, is extruded with a core which also determines the mechanical properties of the bristle. Cavities are formed at a separation from the center of the core and open towards the circumference of the filament which can be filled with medium from the outside, wherein the circumferential openings of the cavities are formed such that the medium is discharged only when the bristle is appropriately used. The cavities may also have a larger opening width and be covered by a layer or jacket. A bristle and brushes having such bristles produced in accordance with this method are also described.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: March 21, 2006
    Assignee: PEDEX & Co. GmbH
    Inventor: Georg Weihrauch
  • Patent number: 6942832
    Abstract: A method and apparatus for vacuum thermoforming disposable drink cups lids including the step of imparting printing to the lids while they are in contact with the vacuum thermoforming platen.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: September 13, 2005
    Inventor: Ivonis M. Mazzarolo
  • Patent number: 6881050
    Abstract: A forming apparatus to produce nonsymmetrical three-dimensional shaped products from a food extrusion device includes a vector drive controlling an induction motor through current flux control, which selectively actuates an iris diaphragm. Food product is pumped to the diaphragm, which shapes the product in accordance with settings from an encoder. The flux drive permits variable control of the diaphragm motor in segments of a 360° revolution. Alternatively, a servo drive may be used to drive a synchronous motor to operate in accordance with instructions from an encoder-shaping product from a food pump as it is forced through the diaphragm.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: April 19, 2005
    Assignee: Robert Reiser + Co. Inc.
    Inventors: John McIsaac, Eric Durrance
  • Patent number: 6863855
    Abstract: Cable tie and method of making the same. In a preferred embodiment, the method comprises continuously forming a length of strap material using a rotary extrusion process, the strap material having laterally-extending teeth disposed along its entire length. The continuous length of strap material is then cut into individual straps of desired length, with the ends of each strap being shaped to desired profiles. A transverse hole may also be formed in the strap proximate to its front end. A front portion comprising a head is then insert-molded around the front end of the strap and, if present, the transverse hole in the strap. The head is provided with a transverse channel through which the tail end of the strap may be inserted and a locking tang lockably engageable with the teeth once inserted therepast.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: March 8, 2005
    Assignee: Avery Dennison Corporation
    Inventor: Thomas Shilale
  • Patent number: 6841105
    Abstract: A method of forming thermoplastic panels is disclosed which includes the steps of forming the thermoplastic panels by extrusion or a similar process and simultaneously or subsequently texturing or graining at least one face thereof, and utilizing such pre-textured or pre-grained panels to form a finished panel or article by disposing such panel in a thermoforming mold having at least one grained or textured mold surface against which the pre-textured or pre-grained surface of the panel is disposed and thermoforming such panel. The process provides a textured or grained surface having greatly improved uniformity and enhanced appearance.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: January 11, 2005
    Assignee: Durakon Industries, Inc.
    Inventors: Gary J. Nehring, John C. Montagna
  • Patent number: 6814905
    Abstract: A continuous process for making a thermoplastic article comprises extruding a sheet of thermoplastic and contacting the sheet with a mold surface while the sheet is in a substantially non-oriented state. The mold surface is selectively heated and/or cooled during thermoforming to maintain the sheet in a molten or thermoformable state. A stripper plate adjacent to the mold surface is maintained at different temperature for inducing a predetermined degree of crystallinity to the sheet, for increasing web stiffness and improving web alignment, and optionally for assisting in the separation of the articles from the mold. A continuous apparatus for making thermoformed articles has co-extruders for extruding at least two distinct layers, which can have dissimilar properties (e.g., polar and non-polar), and a temperature controlled molding surface. Preferred thermoplastic compositions of the present invention have improved toughness and retained intrinsic viscosity.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: November 9, 2004
    Assignee: Associated Packaging Enterprises, Inc.
    Inventors: Edward J. Dalgewicz, John Bond
  • Publication number: 20040217509
    Abstract: A sizer assembly for providing a shaped polymeric article in an extrusion process comprises a sizer body having a product profile channel corresponding to the shaped polymeric article formed therethrough. The sizer body comprises a plurality of cooling liquid inlet slots forming an opening substantially around the product profile channel and a plurality of vacuum slots forming an opening substantially around the product profile channel for removing cooling liquid expelled from said cooling liquid inlet slots.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 4, 2004
    Inventors: Kevin D. Hartley, Robert C. McEldowney, Thomas G. Gilbert, Thomas A. Gates
  • Patent number: 6805823
    Abstract: Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional stability, resiliency, abrasion resistance and other properties making them attractive for use as packaging materials.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: October 19, 2004
    Assignee: Amylex Corporation
    Inventors: Hans G. Franke, Donald R. Bittner
  • Publication number: 20040178532
    Abstract: A method of making a roofing product such as a shingle is provided. One such method includes creating a mixture having at least a polymer and a filler, forming a sheet from the mixture, cooling the sheet, embossing the sheet, forming multiple roofing products from the sheet and bundling at least some of the roofing products together. This method is performed using an automated procedure. Another method of the present invention involves creating a composite roofing product using mold cavities, using a robot to transfer some of the roofing products from some of the mold cavities to a conveying system, and stacking together at least two of the roofing products that have different colors of different surface configurations.
    Type: Application
    Filed: June 9, 2003
    Publication date: September 16, 2004
    Applicant: EPOCH Composite Products, Inc.
    Inventors: Randal J. Jolitz, Dennis Dean Carlson, Charles Doyle Ziulkowski
  • Patent number: 6770264
    Abstract: The invention relates to oral care compositions such as toothpaste, gels, tooth powders, mouthwashes, mouth rinses, gums, such as chewing gum, mouth sprays and lozenges comprising diglycerol. The diglycerol is used as a humectant in the compositions. The compositions may further comprise water, flavoring agents, active compounds, emulsifier, alcohol, sweeteners, thickening agents, surfactants, suspending agents, astringent and toning drug extracts, flavor correctants, abrasives or polishes, deodorizing agents, preservatives, flavoring buffers, whitening agents, wound-healing and inflammation inhibiting substances, colorants, dyes, pigments, abrasives, polishes, antimicrobial agents, pH buffers and other additives and fillers.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: August 3, 2004
    Assignee: Noville, Inc.
    Inventors: Roger E. Stier, Daniel Carey, Douglas P. Fritz
  • Patent number: 6767423
    Abstract: A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not more than 4% EVA as the outer two layers and HDPE as the middle layer. The intermediate layer is folded so as to bring portions of the intermediate layer into an opposing relationship. These opposing portions are the sealed together by a pair of seal bars. By carefully controlling the sealing temperature, a consistent peel seal is created between the opposing portions of the intermediate layer without the need for an adhesive.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: July 27, 2004
    Assignee: Illinois Tool Works Inc.
    Inventors: James Johnson, Daniel T. Sullivan, Jr.
  • Patent number: 6737008
    Abstract: A method of manufacturing a shaped polymeric article is provided. A sheet of extruded hot polymeric material is provided and disposed onto a rotating belt. The rotating belt includes a mold impression therein and a plurality of apertures therethrough. The mold impression resembles a plurality of adjacent shingle impressions of substantially the same length. Each of the shingle impressions includes a bottom edge where at least one of the bottom edges is beveled to give the appearance of shingles having different lengths. Vacuum pressure is applied to the hot polymeric material through the belt, so as to draw the sheet into intimate forming contact with the mold impression to form a patterned central portion. The patterned central portion is cooled below the heat deflection temperature of the polymeric material. A length of the sheet is severed to produce a shaped polymeric article.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: May 18, 2004
    Assignee: Certainteed Corporation
    Inventors: Thomas Charles Gilbert, Kenneth David Bosler, Steven Craig Booz
  • Publication number: 20040070104
    Abstract: The invention concerns a method which consists in: a) forming by extrusion an extruded thermoplastic tube (20) having, when coming out of the extruder, a diameter D1; b) then subjecting said extruded tube of diameter D1 to a radiation treatment, so as to produced a cross-linked tube (21); c) after bringing said cross-linked tube (21) to a temperature not less than a temperature substantially equal to the melting point of its crystalline phase, subjecting it, in displacement, to a radial monoaxial expansion for form an expanded tube (22) of diameter D2, then cooling it down to a temperature, typically room temperature, at which it can be cut into tube portions (23) with length substantially equal to the height of said caps (1); and e) assembling or forming a head (10, 100, 101, 102, 103) on said tube portion (23), so as to obtain a cap or top (1), with heat-shrinkable skirt, economical and having a homogeneous skirt (11, 12) free of axial connection line.
    Type: Application
    Filed: May 19, 2003
    Publication date: April 15, 2004
    Inventor: Jacques Granger
  • Patent number: 6692672
    Abstract: An EAS marker and method of manufacturing same. In a preferred embodiment, the EAS marker comprises a rigid bottom piece of molded plastic having the shape of an open rectangular box. An elongated resonator is disposed in the bottom piece, the resonator being bowed downwardly about its longitudinal axis. A rigid separator of molded plastic is positioned over the open top of the bottom piece, thereby loosely encasing the resonator in the bottom piece. The foregoing bottom piece, resonator and separator are all positioned within the cavity of a rigid top piece of molded plastic having the shape of an inverted open rectangular box, the separator being press-fit against the interior surface of the top wall of the top piece, the bottom piece being press-fit against the interior surfaces of the side walls and end walls of the top piece. The top wall of the top piece is provided with a recessed area in which a biasing element is disposed, the biasing element being retained in the recessed area by the separator.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: February 17, 2004
    Assignee: Avery Dennison Corporation
    Inventors: Charles L. Deschenes, Charles K. Herrmann
  • Patent number: 6616877
    Abstract: A resilient article and method of manufacturing the same using recycled materials are described. Predetermined amounts of thermoset material and thermoplastic binder are mixed and extruded into a die, from which the mixture emerges in the form of a sheet having the approximate thickness of the finished article. The mixture then enters a calibrator, which more precisely shapes the sheet to the desired thickness. The sheet is then cooled and cut to the desired dimensions to provide the finished article. The thermoset material used in the mixture is preferably ground vehicle tire rubber with the fabric and metal removed and the thermoplastic binder is preferably waste polyethylene. The apparatus and method according to the present invention is particularly well suited for manufacturing resilient articles for use as expansion joint material.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 9, 2003
    Inventors: Matthew M. Close, Nicholas H. Danna, David R. Smith
  • Publication number: 20030160356
    Abstract: A method for continuously forming molded parts includes providing an extruder; directing a hollow column of plastic material from said extruder; providing a plurality of die blocks each including planar end segments having differing geometry and joined by intermediate convoluted segments; continuously moving such die blocks for receiving and forming the hollow column into strut boots with planar end segments and intermediate convoluted segments and advancing the shaped column of plastic material from the continuously moving die blocks and providing a cutter synchronized to the movement of the shaped column for separating the planar end segments to form one or more parts having planar end segments of the same or differing geometry in each part or with differing geometry from part to part.
    Type: Application
    Filed: March 23, 2000
    Publication date: August 28, 2003
    Inventor: Thomas M. D'Angelo
  • Publication number: 20030125709
    Abstract: A hypotube for an intravenous catheter device is disclosed which includes a tubular shaft having a tubular wall defining a lumen. The shaft includes a main section integrally connected to a distal section. The distal section includes a first section connected to the second section and disposed between the second section and the main section. The second section includes an elongated stinger.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventor: Tracee E.J. Eidenschink
  • Patent number: 6551539
    Abstract: 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: Grant
    Filed: September 19, 2000
    Date of Patent: April 22, 2003
    Assignee: Velcro Industries B.V.
    Inventors: Peter Leach, Michael Carbonneau, Matthew Raimer
  • Patent number: 6531081
    Abstract: 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: Grant
    Filed: June 22, 2000
    Date of Patent: March 11, 2003
    Assignee: Reynolds Consumer Products, Inc.
    Inventor: James E. Buchman
  • Patent number: 6503440
    Abstract: A process for the production of a container (1) comprising an outer container (2), an inner bag (3) disposed therein and a pressure equalisation opening (10) disposed in the outer container (2), and also a container (1) produced according to this process, is described, wherein firstly a pre-moulding, comprising two coaxial tubes, is first produced by co-extrusion with the help of a blow mould and with an outwardly-projecting base seam (5) being formed. The process is to form a pressure equalisation opening (10) in the outer container (2) of the container (1) without endangering the integrity of the container (1), wherein a lower wastage rate and higher productivity are to be achieved. This is attained by a process wherein the base seam (5) is partially cut off and a force which acts in the direction of the seam is introduced into the pre-moulding, which still has a temperature of 40° C. to 70°C.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: January 7, 2003
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Torsten Kuehn, Burkhard Peter Metzger
  • Patent number: 6471909
    Abstract: A blown plastic container that includes a hollow plastic body, an integral blow-molded neck and an integral blow-molded finish with a radially outwardly extending blow-molded thread or bead for retaining a closure on the finish. Reinforcement is provided between the thread or bead and a ledge on the finish to prevent collapse of the finish when a closure is applied to the finish. In one form, this reinforcement includes blow-molded axial columns extending radially outwardly. In another form, the reinforcement includes geometric depressions. The reinforcement preferably is disposed circumferentially at equal angular spacing. When the container is trimmed, the finish may have an annular frustoconical radial ledge spaced from the open end of the finish. The reinforcement extends between the ledge and the lowest thread or bead, between the thread or bead, or for the full height of the finish above the ledge.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: October 29, 2002
    Assignee: Owens-Brockway Plastic Products Inc.
    Inventor: Theodore M. Czesak
  • Patent number: 6464915
    Abstract: 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: Grant
    Filed: February 16, 2000
    Date of Patent: October 15, 2002
    Inventor: Randall V. Schaen
  • Publication number: 20020135097
    Abstract: Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional stability, resiliency, abrasion resistance and other properties making them attractive for use as packaging materials.
    Type: Application
    Filed: October 25, 2001
    Publication date: September 26, 2002
    Inventors: Hans G. Franke, Donald R. Bittner
  • Publication number: 20020109256
    Abstract: A three dimensional structure, such as a watercraft, and a method for forming the three dimensional polymeric structure are described. The method includes providing at least one paint layer and a bonding layer coupled to the at least one paint layer and including a first exterior surface, extruding a structural sheet of at least one polymeric material at an extrusion temperature, wherein the sheet has a thickness of at least 0.25 inches and a second exterior surface, joining the first exterior surface to the second exterior surface to form a thermoformable sheet, forcing the thermoformable sheet against a three dimensional mold while the sheet is at a thermoformable temperature to deform the sheet into a three dimensional structure and removing the three dimensional structure from the mold.
    Type: Application
    Filed: July 11, 2001
    Publication date: August 15, 2002
    Inventor: David M. Sellepack
  • Patent number: 6428610
    Abstract: The present invention is directed toward a filter media for a high efficiency particulate air (“HEPA”) filter including a multiplicity of adjacent electrostatically charged piles of nonwoven fabric. The invention further includes a method of making a HEPA filter.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: August 6, 2002
    Assignee: The University of Tennessee Research Corporation
    Inventors: Peter Tsai, Sanjiv R. Malkan
  • Patent number: 6350398
    Abstract: The invention relates to a process for producing coated solid dosage forms by forming a plastic mixture from at least one thermoplastic physiologically tolerated polymeric binder and at least one active ingredient and extruding the plastic mixture, wherein the extrudate is subsequently treated with at least one liquid or vaporized coating agent, and the coated extrudate is shaped to the required dosage form.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: February 26, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Jörg Breitenbach, Stephan Kothrade, Andreas Kleinke, Armin Lange, Werner Maier
  • Publication number: 20010048177
    Abstract: A resilient article and method of manufacturing the same using recycled materials are described. Predetermined amounts of thermoset material and thermoplastic binder are mixed and extruded into a die, from which the mixture emerges in the form of a sheet having the approximate thickness of the finished article. The mixture then enters a calibrator, which more precisely shapes the sheet to the desired thickness. The sheet is then cooled and cut to the desired dimensions to provide the finished article. The thermoset material used in the mixture is preferably ground vehicle tire rubber with the fabric and metal removed and the thermoplastic binder is preferably waste polyethylene. The apparatus and method according to the present invention is particularly well suited for manufacturing resilient articles for use as expansion joint material.
    Type: Application
    Filed: December 28, 2000
    Publication date: December 6, 2001
    Inventors: Matthew M. Close, Nicholas H. Danna, David R. Smith
  • Patent number: 6319456
    Abstract: This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. Vacuum pressure is applied to the polymeric material through the belt so as to draw the hot polymeric material into intimate contact with the mold impression to form a patterned sheet portion and a remaining sheet portion. This method thereafter cools at least the patterned sheet portion below a heat deflection temperature of the polymeric material, forms the remaining sheet portion, and then cools the remaining sheet portion below the heat deflection temperature so that features other than the central pattern, such as nail and butt edges, can be mechanically worked into the polymeric sheet.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 20, 2001
    Assignee: Certainteed Corporation
    Inventors: Thomas Gilbert, Kenneth D. Bosler, Edward C. Dell
  • Publication number: 20010039778
    Abstract: A sheet of plastics material is continuously extruded onto the upper run of an endless conveyor which carries aluminum vacuum mold plates each defining a cavity with a shingle pattern. The sheet is progressively vacuum-formed into the mold plate cavities, and opposite longitudinal upper and lower portions of the sheet are progressively vacuum-formed, with traveling plug assist in one embodiment, to define shingle panels with hook-shaped lower portions and upper portions defining grooves for receiving the lower portions. The upper portion of the sheet is punched with longitudinally spaced slots to form a nailing flange, and the sheet is then cut laterally at longitudinally spaced intervals to produce elongated siding panels each having integrally connected shingle panels. The shingle panels may have different bottom configurations or profiles and are interchangeable.
    Type: Application
    Filed: July 31, 2001
    Publication date: November 15, 2001
    Inventor: Daniel W. King
  • Patent number: 6280680
    Abstract: A process for the manufacture of an environmental friendly paper from about 56% to about 80% by weight of inorganic mineral powders, about 43% to 18% by weight of polyethylene, and about 1% to 2% by weight of additives is provided. A composition for the manufacture of an environmental friendly paper, comprising about 56% to 80% by weight of inorganic mineral powders, about 43% to 18% by weight of polyethylene, and about 1% to 2% weight by additives is also disclosed.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: August 28, 2001
    Assignee: Lung Meng Environmental Friendly Paper Products Hong Kong (Holdings) Limited
    Inventor: Shih Huei Liang
  • Patent number: 6258302
    Abstract: An improved process for producing polybutadiene golf ball cores is disclosed. The golf ball cores are from polybutadiene rubber compositions having a high Mooney viscosity and/or a high molecular weight and a low dispersity is disclosed. An apparatus for producing the polybutadiene golf ball cores is also disclosed. The apparatus includes an internal mixer that compounds a batch of golf ball core stock. A sheeter forms sheets of golf ball core stock and has a sheeter inlet proximate the mixer outlet and a sheeter outlet. A preform shaper forms golf ball core preforms from the sheets of golf ball core stock.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: July 10, 2001
    Assignee: Spalding Sports Worldwide, Inc.
    Inventor: R. Dennis Nesbitt
  • Patent number: 6251322
    Abstract: The invention provides synthetic polymeric fibers which have utility as temporary acquisition/distribution absorbent structures and permanent storage/distribution absorbent structures in a wide range of absorbent products such as diapers, feminine napkins, and adult incontinent pads. These fibers are short, highly distorted, and bulky characterized by lengths between 2 and 37 mm, short-range distortion factors between 5 and 70, long-range distortion factors between 0.05 and 0.9, and single fiber bulk factors between 0.5 and 10.0. They may or may not have capillary channels on the surface. The advantages of these materials are their increased absorbency, reduced wet collapse at low densities, reduced rewet, reduced loss of liquid under pressure, and their ability to be desorbed by distribution materials such as capillary channeled fibers or by conventional storage materials such as fluff pulp or superabsorbent polymer fiber or powder.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 26, 2001
    Assignee: Clemson University Research Foundation
    Inventors: Bobby Mal Phillips, Shriram Bagrodia
  • Patent number: 6210616
    Abstract: An extrusion process and apparatus is described for the manufacture of a thermoplastic resin-filler composite product having a desired resin-filler mixture comprised of 60-20% by weight of a thermoplastic resin and 40-80% by weight of a filler. A resin-filler mixture, in homogeneous form, is extruded through a die at a temperature above the softening point of the resin to form an extrudate having a desired cross-sectional shape. The extrudate is then passed through a die land at a temperature of above the softening point. From the die land the extrudate is cooled in a cooled shaper and transferred thereto through a thermal barrier insert member which is disposed in contact between the die land and the cooled shaper whereby radial pressure to counteract radial expansion tendencies of the extrudate is maintained during the passage. The cooled shaper cools the extrudate to a temperature of about at least 20° C. below the softening point of the resin.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: April 3, 2001
    Assignee: CRF Technologies Group Ltd.
    Inventor: Dedo Suwanda