Patents Examined by Donald E. Watkins
  • Patent number: 4422286
    Abstract: Reinforced thermoplastic impregnated lubricated wire ropes are provided in the present invention. A method of reinforcing and filling the thermoplastic material with fibers, mineral fillers and powders is also provided.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: December 27, 1983
    Assignee: AMSTED Industries Incorporated
    Inventors: Neville H. Simpson, Peter P. Riggs, Warren W. Rasmussen
  • Patent number: 4030278
    Abstract: Process and apparatus for producing highly elastic crimp yarn by the draw-texturing method using a false-twister, in which the filament speed exceeds 300 m/min and in which setting is carried out at constant filament tension by brief contact of the filament with a heating rail with roughened contact surface and a length of at most 400 mm.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: June 21, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-August Heinroth, Theo Dietrich, Hans Bach, Hans-Dieter Jurischka
  • Patent number: 4018041
    Abstract: A friction disc for an apparatus for the false twisting of threads such as, for example, for crimping synthetic threads, has a thread engaging surface with a high co-efficient of friction and a convexly curved asymmetrical profile which is divided into three portions, each portion forming an arc of a circle having a different radius of curvature, the portion at the thread entry face extending over an arcuate length of about 90.degree. up to the apex of the profile and having a radius of curvature equal to between 0.4S and 0.5S, while the intermediate portion of the profile has a radius of curvature substantially equal to S and the portion of the profile at the thread exit face has a radius of curvature equal to between 0.075S and 0.1S, S being the thickness of the disc.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: April 19, 1977
    Assignee: Kugelfischer Georg Schafer & Co.
    Inventors: Hans Weigert, Kirit Patel
  • Patent number: 4016713
    Abstract: This invention relates to an improvement in a drive for a high-speed axle or shaft or a spindle in which a spinning can having a radially-extending wall is mounted at one end of a rotatable shaft, said can being positioned opposite a parallel housing wall with a gap between them, and in which the other end of said shaft is mounted in said housing in a spiral groove cap-type bearing,The improvement comprising direct-current drive motor means with electronic commutation, the stator ring with segment winding of said motor means being mounted in said wall of said housing,Permanent magnet means in said radially-extending wall of said spinning can, said magnet means being magnetized in the direction of the longitudinal shaft axis,And disc means connecting said magnets and being capable of transmitting the magnetic field pressure flow, whereby the magnetic field is closed.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: April 12, 1977
    Assignee: Dornier System GmbH
    Inventors: Alfred Lauger, Jochen Schrade
  • Patent number: 4015415
    Abstract: This invention provides an intertwisting means including drum rotatable about the axis thereof to feed linear objects wound thereon through arm members suspended over the periphery of the drum in rotatable relation with the axis thereof so as to guide the fed objects into an inner hollow portion of the drums by means of guide rollers.The invention further involves the construction formed with cap means for intertwisting the guided objects at an equal angle of torsion thereby to form a continuity of thick, strong rope-like object and a means for automatically winding said continuity thereon.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: April 5, 1977
    Inventors: Shoji Otsuki, Kenjiro Kuroishi, Eiji Ohara
  • Patent number: 4012895
    Abstract: A false-twisting arrangement for synthetic yarns consisting of a rotating body and yarn guides, distinguished by the fact that the yarn is pressed onto the rotating body by a jet of gas or liquid and is thereby twisted, the yarn being pressed onto the rotating body under a substantially constant force.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: March 22, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edgar Muschelknautz, Hans Lenz, Heiko Herold
  • Patent number: 4010600
    Abstract: A top-drive filling spindle for use in the manufacture of textile yarn is provided wherein the tapered tip thereof is of a through hardened steel material that would more readily resist wear caused by the driving action of the quill disposed thereon. A top-drive filling spindle having wear on the tapered tip thereof can advantageously be retipped by grinding the worn tip to a predetermined size; applying a sleeve of through hardened steel or the like thereover; securing the sleeve thereon; and, finally grinding the thusly secured sleeve to the standard taper for top-drive filling spindles. With the application of the through hardened sleeve, it is anticipated that spindle wear would not occur for perhaps six to twelve years or more -- a two to three fold increase over the life of spindles currently used by those skilled in the art.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: March 8, 1977
    Assignee: The Kendall Company
    Inventors: Ernest G. Poole, Lucius M. Hair
  • Patent number: 4009563
    Abstract: This invention relates to an apparatus for false twisting synthetic filament yarns, which apparatus is in the form of an air rotated nozzle having tangential inlet bores and two central outlet bores. The twisting chamber is set at an angle of 2.degree. to 40.degree. to the draw-off direction of the filament. The special advantage of this apparatus according to the invention is that it ensures smooth movement of the filament outside the twisting chamber.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: March 1, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Lenz, Edgar Muschelknautz, Heiko Herold, Kurt Bernklau, Lutz Georgias
  • Patent number: 4009562
    Abstract: An air duct is located opposite a separating opening which opens into the space containing the fiber opening roll so as to receive impurities centrifuged from the opening roll. The separating opening has a wall which forms an acute angle with the opposite wall of the duct so that the impurities can be deflected off the duct wall into the same direction as the air flow in the duct. The duct is narrowed downstream of this point in order to accelerate the air flow and entrained impurities out of the machine via a suction duct. This also stretches out any loose fibers in the flow for rapid removal in order to prevent clogging of the suction duct.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: March 1, 1977
    Assignee: Rieter Machine Works, Ltd.
    Inventor: Herbert Stalder
  • Patent number: 4008562
    Abstract: Apparatus for supplying a staple fiber formation, such as a fibrous sliver, to a fiber separating device in an open-end spinning unit provided with a combing-out cylinder adapted to cooperate with a feed roller and with a pivotally supported pressure shoe thrust toward said feed roller. The apparatus has a pivot shaft supporting the pressure shoe, the pivot shaft carrying a swingably arranged link which is provided with a cutout to receive a guide member, and with stops for stop members provided in an arm carrying the pressure shoe.The arm is preferably provided with a slit and with a safeguarding member for maintaining the position of the stop members.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: February 22, 1977
    Assignee: Vyzkumny Ustav Bavlnarsky
    Inventors: Milos Vecera, Josef Skala, Oldrich Tesar
  • Patent number: 4007581
    Abstract: In the spinning or twisting of continuous fibrous material at a spinning or twisting frame station comprising a spindle for carrying a bobbin, a ring concentrically mounted about the spindle and supporting a traveler for guiding the fibrous material onto the bobbin and means for driving the ring and the spindle, the improvement comprising engaging the fibrous material at the head of the spindle thereby to reduce or eliminate ballooning of the fibrous material and rotating the ring at a lesser rate that the spindle thereby to decrease the tension on the yarn.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: February 15, 1977
    Assignee: VEB Spinnereimaschinenbau
    Inventors: Rolf Langer, Peter Thierfelder, Harald Geisler
  • Patent number: 4005568
    Abstract: This invention relates to an apparatus and method for removing dust and dirt from the process of making yarn in an open-end spinner. It also improves the quality of the finished yarn product. The device comprises a conventional type open-end spinner with a plurality of fine holes critically spaced and installed in the vertex of the V-groove.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: February 1, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Craig L. Folk
  • Patent number: 4004406
    Abstract: A spun-type yarn having a unique configuration and useful properties is manufactured by a novel process which comprises forming a ribbon-shaped fiber bundle being substantially free from twists and composed of randomly oriented continuous filaments, each of which comprises random bends and loops along its length, and then false twisting the ribbon-shaped bundle to consolidate it into a yarn. In the false-twisting, some of the filaments are broken.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: January 25, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Hirotsugu Suzuki, Yo Ogawa, Yoshikazu Kikuchi, Shin-ichi Kitazawa
  • Patent number: 4002017
    Abstract: This is concerned with a friction element for a false twisting apparatus for yarns, whereby a friction element consisting of a hard material has a longitudinal groovelike composition on the surface thereof extending parallel with the axis of rotation of the element.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: January 11, 1977
    Inventor: Ernst A. Weinz
  • Patent number: 4002013
    Abstract: A running yarn is spliced into a running tow by entangling filaments of the tow with and about filaments of the yarn with an air-jet device, the leading portion of the yarn is severed to leave a small protruding tail, and the tail is entangled within the tow with a second air-jet device. The air-jet devices comprise two halves which are separated and positioned on each side of the tow until a splice is to be formed; they are then closed to form cylindrical treatment chambers of diameters which impart a rounded shape to the tow, so that filaments are entangled about the yarn by the air jets. The air-jet devices are preferably designed to provide a forwarding action on the filaments.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: January 11, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Melvin Harry Johnson, Calvin Brooks Walker
  • Patent number: 4002011
    Abstract: Disclosed is a high speed binding device wherein a package wound with a binding thread is fixed to a flange of a flyer with its thread-winding axis in parallel with the rotation axis of said flyer and the binding thread is drawn out in the direction of the winding axis; and thereafter said binding thread is passed through a first tensioner for imparting to the binding thread a back tension decreased with a rise in the rotation speed of the flyer and then through a second tensioner for imparting to the binding thread a back tension increased with a rise in said rotation speed, thereby to cause said decrease in the back tension to be offset by said increase in the back tension, thus to bind, with a substantially constant back tension, the binding thread about the outer periphery of an element assembly passing through a through hole coaxially bored through the flyer.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: January 11, 1977
    Assignee: The Fujikura Cable Works, Ltd.
    Inventors: Shigenobu Tanaka, Seiichi Nishikawa, Seiji Ishikawa
  • Patent number: 4002019
    Abstract: Yarn of a fineness between Nm 60 and Nm 250 comprises fibres from the fur of angora rabbits. The fibres are pretreated with a two-component composition of an antistatic agent and an agent for increasing the adhesability of the fibres. The pretreated fibres, with or without other fibres such as synthetic fibres, are spun together with an uninterrupted carrier thread of a cross-section up to one third of the cross-section of the spun yarn.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: January 11, 1977
    Assignee: Patentverwertungs-AG der Spinnerei am Uznaberg
    Inventors: Gerhard Egbers, Peter Artzt
  • Patent number: 4000604
    Abstract: A process for making bulky elastic texturized acetate yarn having good elasticity, good tensile strength and good durability of elasticity and tensile strength in washing and dry cleaning which comprises applying to acetate yarn a curable synthetic resin, applying to said acetate yarn a twist wet heat setting agent, bulking and texturizing said acetate yarn by imparting a false twist thereto, heating said yarn to twist wet heat set said false twist, dissolve twisting said yarn, drying said acetate yarn and heat treating said dried acetate yarn to cure said curable synthetic resin therein, and bulky elastic texturized acetate yarn so made.
    Type: Grant
    Filed: March 19, 1974
    Date of Patent: January 4, 1977
    Inventor: Sung In Lee
  • Patent number: 3999363
    Abstract: A twist tube for false-twist devices for texturing textile yarns is described wherein the thread guide pin has terminal portions coated with a solderable metal, such as nickel. The terminal portions are mounted in bores on each side of the elongated metal tubular part of the twist tube and at least one of the coated terminal portions is soldered into its associated bore at a temperature which does not modify the crystalline metal structure of the twist tube nor cause thermal deformation of the twist tube. The opposite terminal portion may be similarly soldered into its bore or it may be elastically mounted in its bore. Processes involving soft soldering and hard soldering are described.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: December 28, 1976
    Assignee: Heberlein & Co. AG
    Inventor: Hansrudolf Gross
  • Patent number: 3998041
    Abstract: A method of, and apparatus for, fabricating a textured yarn or the like comprising a false twist device containing a number of friction disks arranged in spaced coaxial relationship with respect to one another in succession and thread guide elements helically distributed along the circumference of the false twist device. The thread guide elements extend into the space between the disks and are helically arranged along the circumference of the false twist device in such a manner that a yarn contacting the disks and guided by the thread guide elements contacts the false twist device along a helix, the helix angle or pitch of which decreases in the direction of travel of the yarn.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: December 21, 1976
    Assignee: Rieter Machine Works, Ltd.
    Inventors: Felix Graf, Jakob Fluck, Hans Schellenberg