Patents Examined by Donald Watkins
  • Two-component yarn
    Patent number: 4866924
    Abstract: A two-component yarn is created from a fiber component and a component consisting of a filament yarn, in which the fiber component is formed by a drawn sliver that is prestrengthened by means of pneumatic false-twist spinning and is twisted together with the filament yarn.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: September 19, 1989
    Assignee: Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Support stand for a textile machine
    Patent number: 4862686
    Abstract: A lightweight, rigidified support stand for textile spinning and like machines may be easily manufactured with close tolerances without resort to a casting process by welding together a profiled sheet metal base having a substantially flat main support surface provided with a plurality of receptacles for fastening of machines components and a sheet metal brace member of a U-shaped profile. The formation of the fastener receptacles in the base member enables the receptacles to be arranged in a single plane with close tolerances, while the brace member serves to rigidify the base member.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: September 5, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Norbert Stadele, Thomas Grollmann, Friedrich Dinkelmann
  • Opening cylinder for open-end spinning machine
    Patent number: 4862688
    Abstract: An opening cylinder for an open-end spinning machine comprising a cylinder body of aluminum or similar material having a helical groove therein for receiving the foot portion of a saw-tooth wire fillet wherein the width of the groove is smaller than the foot portion of the saw-tooth wire fillet and the material of opening cylinder is deformed by press-rolling the wire fillet into the grooves.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 5, 1989
    Assignee: Hollingsworth GmbH
    Inventor: Karl H. Schmolke
  • Racquet strings
    Patent number: 4860531
    Abstract: A synthetic string for a sports racquet has an inner single strand or multifilament core, wrapped with one or more helically wound layers of large diameter strands of monofilament, and surrounded by an extruded coating of regular polygonal cross-section having 5 to 8 planar surfaces joined at parallel, axially extending biting edges which serve to impart greater topspin and slice control to the ball.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: August 29, 1989
    Inventors: D. Phillips Wells, Stephen R. Phelps
  • Thermoplastic-rubber wader and method of manufacture
    Patent number: 4858342
    Abstract: A method for making a thermoplastic-rubber wader having a rubber footwear bottom and a thermoplastic upper, the method including the steps of treating an upper circumferential portion of the bottom, applying thermoplastic adhesive to the treated portion, applying a thermoplastic strip to the adhesive coating, applying a thermoplastic band to the upper to provide an interfacing annular seating surface with the thermoplastic strip, heat sealing the strip and band to provide a fluid tight unitary bond between the bottom and the upper and the wader formed by the above method.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: August 22, 1989
    Assignee: La Crosse Footwear, Inc.
    Inventors: Joh E. Nicholson, Tarachand S. Barma
  • Process and apparatus for cleaning and opening loose fiber stock, e.g. cotton
    Patent number: 4858277
    Abstract: A process and apparatus is disclosed for cleaning and opening loose fiber material which is fed through a feeder to a cleaning operation to be carried away for further processing. The degree of contamination of the fiber material is concurrently scanned. Control of the cleaning procedure is performed in response to the scanned measuring results. A measuring path is provided between a fiber feeder (2) and an opening and cleaning unit (3). At the measuring path (24), there is arranged a device (300) for scanning the degree of contamination of the fiber material. A controller (41) controls cleaning unit (3) and/or take-off rolls (8, 9) of feeder (2). The control of the cleaning procedure is relatively instantaneous in accordance wit the result of a proceeding measurement of the degree of contamination of the fiber material.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: August 22, 1989
    Assignee: Hergeth Hollingsworth GmbH
    Inventors: Akiva Pinto, Guenter Lucassen, Heinz Dirkes
  • Opening roller construction for open end spinning machine and the like
    Patent number: 4858275
    Abstract: In the case of a mounting or ring fitting for an opening roller for open end spinning machines and the like, it is provided that the tooth tips are chamfered and form cutting edges which extend essentially in the travel direction of the teeth.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: August 22, 1989
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Gerd Stahlecker
  • Kinetic energy returning shoe
    Patent number: 4858338
    Abstract: An insert for a shoe sole is provided which includes a strip made of an elastic material disposed between an outer sole portion and an upper sole portion of the sole of a shoe. The strip extends from the outer heel area of the shoe to the border of the large toe area of the shoe. The strip forms a rocker bottom which cradles the first metatarsal head of the foot of the wearer. The roll point of the rocker bottom is disposed in a range of from the toe break of the wearer to approximately 2.5 centimeters behind the toe break of the wearer.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: August 22, 1989
    Assignee: Orthopedic Design
    Inventor: Rainer K. Schmid
  • Method and apparatus for twisting together lengths of filamentary material
    Patent number: 4856267
    Abstract: Method and apparatus for twisting conductors into a twisted pair in which the conductos are passed from two axially aligned reels and axially out of a cylinder. The conductors pass through one twist position axially at one end of the cylinder, extend around the cylinder and along the cylinder to the other end to a second twist position. The conductors are drawn along their paths during rotation of a flyer radially outside the cylinder. Speed of rotation of the conductors leaving the reels forces the conductors against the inner surface of the cylinder against which the conductors slide as they move towards the first twist position. The flyer means is provided, preferably, upon the outer surface of the cylinder.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: August 15, 1989
    Assignee: Northern Telecom Limited
    Inventor: John N. Garner
  • Splicing device operating with compressed air admixed with a liquid, for splicing threads for textile yarns
    Patent number: 4852339
    Abstract: A splicing device is proposed, for splicing threads or textile yarns with compressed air containing an added liquid, in which, in order to get rid of the need for a precise and careful metering of the liquid to be added to the compressed air, and in order to protect the mechanical parts of the device from undesired noxious effects due to their contact with the liquid entrained by the compressed air, the mixing chamber inside which the splicing of the threads or yarns takes place is positioned inside a tank which can be tightly sealed before and during the splicing operation, from which tank a discharge duct for the liquid-admixed compressed air starts.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: August 1, 1989
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Interconnecting system for a winder and a two-for-one twisting machine
    Patent number: 4848076
    Abstract: An automatic winder and a two-for-one twisting machine are interconnected by a yarn supply package exchanging device for a set of two packages arranged in two upper and lower stages which is located between the automatic winder and the two-for-one twisting machine. Doffed packages at the winder side are put on a yarn support fitted on a tray by the yarn supply package exchanging device and are transported and supplied to a spindle of the two-for-one twisting machine.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: July 18, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Yutaka Ueda, Shoichi Tone, Tsukasa Kawarabashi
  • Method for producing spun yarns
    Patent number: 4848072
    Abstract: A method for producing a spun yarn from staple fiber sliver by supplying an additional yarn of a different nature to the staple fiber sliver while drafting same, and imparting twists thereto by the use of an air injection nozzle. The supply of the additional yarn is started after arrival of the staple fiber sliver at the air injection nozzle.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: July 18, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Shoji Sakai, Akio Matsushima
  • Package feeding method and apparatus
    Patent number: 4848077
    Abstract: A package feeding method and apparatus for a yarn twisting machine having a large number of two-for-one twisters of two stage yarn supply type. A package is fed after an end of yarn of the package has been wrapped in several turns of a yarn layer non-existing portion of the package.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: July 18, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Tsukasa Kawarabashi, Shoichi Tone, Hiroo Otoshima
  • Chiplessly formed open-end spinning rotor and process for production of such and open-end spinning rotor
    Patent number: 4848080
    Abstract: The chiplessly formed open end spinning rotor (1) has, in the region of its collecting groove (11), a surface which has not been contacted by shaping tools. To produce it, a pot (3) is first made by stretching and stamping of flat material. This is then secured in its radial position independently of shaping tools. The peripheral wall of the pot (3), in the region between the later collecting groove (11) and the open edge of the pot (3), is upset inward by any optional kind of plastic deformation and the region later to be the collecting groove (11) by unsupported plastic deformation ["against air"].
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: July 18, 1989
    Assignee: Schubert & Salzer
    Inventors: Eberhard Hofmann, Simon Escher
  • Method and apparatus for threading roving into a running set of drafting rolls
    Patent number: 4845935
    Abstract: In the threading of roving coming from a roving bobbin into a running set of drafting rolls of a work station of a spinning machine, the beginning end of the roving coming from the roving bobbin is grasped and brought into the set of drafting rolls bypassing at least the first (upstream-most) pair of rolls and is delivered to the drafting rolls downstream thereof. Only then is the roving fed into the set of drafting rolls bypassing at least the first pair of rolls inserted laterally in the preceding (bypassed) roll pair or pairs from a side of the free or unjournaled end of the upper roll.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: July 11, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Karl-Heinz Mack
  • Method and apparatus for automatic orderly removal and collection of fully-spun cops from textile ring spinning machines
    Patent number: 4846414
    Abstract: A method and apparatus for automatically removing and collecting in an orderly manner fully-spun cops from a plurality of textile ring spinning machines of the type having longitudinal conveyors for transporting doffed cops to one machine end for collection. The present invention provides a respective transport apparatus in end-facing relation to each spinning machine for automatically bringing magazines to the machine for filling with doffed cops. A cart travels transversely intermediate the machines and their associated magazine transport apparatus to receive doffed cops from the machine conveyors and transfer them automatically into magazines provided on the associated magazine transport apparatus.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: July 11, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Joachim Rohner, deceased, Manfred Langen, Gregor Gebald
  • Bobbin transfer system
    Patent number: 4845937
    Abstract: A bobbin transfer system consisting of a pair of conveyors, one to carry the spinning bobbins and the other to carry the empty bobbins, each installed at a top portion of a spinning machine to run along the spindle row. The spinning machine and a winder may be connected with each other by the conveyors.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: July 11, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Masaharu Kiriake, Shoichi Tone
  • Method of and apparatus for spinning yarn
    Patent number: 4845932
    Abstract: An air spinning method and apparatus for spinning a yarn. The apparatus includes a pipe with a fiber bundle passageway, air jet nozzles for applying whirling air currents near the inlet of the pipe, and a rotating body including air discharge passages and revolving around the pipe. In the method, the fiber bundle is passed through the pipe's fiber bundle passageway. Rear ends of some fibers are separated from the fiber bundle by air currents jetted from the nozzles so as to be rotated together with air currents by the rotating body after drawn into the discharge passage. Fibers lying in the central portion of the fiber bundle, pass through the pipe's fiber bundle passageway without being influenced by the air currents jetted from the nozzles.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: July 11, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Shoji Sakai, Shinichi Nishimura
  • False twisted bulky multifilament yarn, method of making and end use of this yarn
    Patent number: 4845934
    Abstract: A false twisted bulky synthetic multifilament yarn of a uniform polymer consisting of at least two filament bundles of different filament deniers, with the filaments in each of said bundles having the same denier per filament. The smaller denier per filament is less than 1 dtex, and the total denier of the texturized yarn is in excess of 100 times the finer filament denier. For the production of such a multifilament yarn, the draw ratios of both filament bundles are chosen such that the difference between both draw ratios is smaller than 0.1, and both bundles are drawtexturized simultaneously at a draw ratio corresponding to the draw ratio of the filament bundle having the coarser denier per filament. Preferred end uses of the yarn are water-repellent fabrics, dust proof fabrics, and the conductive component of sports wear.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: July 11, 1989
    Assignee: Hoechst AG
    Inventor: Gunther Bauer
  • Method of producing mottled rotor spun yarn
    Patent number: 4845946
    Abstract: A mottled appearing yarn having a main strand of fibers and wrapper fibers of different color than the main strand. The yarn is produced by feeding longer and coaser fibers with shorter and finer fibers in an open end rotor spinning machine and controlling the operation to accentuate wrapper fiber formation with the longer and coarser fibers. The wrapper fiber formation is accentuated by using a relatively low rotor diameter to fiber length ratio and by using an aggressive navel action.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: July 11, 1989
    Assignee: W. Schlafhorst & Co.
    Inventor: Helmut Deussen