Anti-skid Patents (Class 152/167)
  • Patent number: 10336890
    Abstract: Provided by the present invention are a rubber composition for studless winter tires capable of improving performance on snow and ice while maintaining good abrasion resistance, and a studless winter tire including the rubber composition. The present invention relates to a rubber composition for studless winter tires containing a rubber component and bionanofibers, the bionanofibers having an average fiber diameter of 0.1 ?m or less, the rubber component having a combined amount of natural rubber and polybutadiene rubber of 30% to 100% by mass based on 100% by mass of the rubber component, the rubber composition containing the bionanofibers in an amount of 1 to 10 parts by mass relative to 100 parts by mass of the rubber component.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: July 2, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Ryoji Kojima
  • Patent number: 9868851
    Abstract: A rubber composition for a tire tread comprising 100 parts by mass of a diene rubber, 10 to 150 parts by mass of a reinforcing filler, and 0.1 to 30 parts by mass of an acid-treated silk powder having a 90% volume particle diameter (D90) of 500 ?m or less. A pneumatic tire having a tread comprising the rubber composition.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: January 16, 2018
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Shinsaku Kamada
  • Patent number: 9457895
    Abstract: A traction-on-demand landing gear tire control system and methods are presented. An outer tire of an aircraft wheel is depressurized to a depressurized state in response to a non-optimal aircraft landing condition. An inner tire of the aircraft wheel contacts the outer tire in response to the depressurized state, and a plurality of traction studs are deployed to protrude from the outer tire in response to the inner tire contacting the outer tire.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: October 4, 2016
    Assignee: The Boeing Company
    Inventors: Sergey Barmichev, Kelly L. Boren, Stephen T. Brown
  • Patent number: 9415500
    Abstract: A bi-directional grip structure and hand tool incorporating the same. The structure includes a base and first and second sets of protrusions. The first and second sets of protrusions include inclined surfaces positioned in opposing directions.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 16, 2016
    Assignee: GBH PRODUCTS, LLC
    Inventor: Harry S. Billado, Jr.
  • Publication number: 20140034199
    Abstract: A tire includes a circumferential tread constructed of a base material. The circumferential tread has a plurality of bars, each of the plurality of bars having a top surface and a plurality of side surfaces. The circumferential tread further has a plurality of valleys disposed between the plurality of bars. A laminate covers at least some of the plurality of valleys. The laminate has a greater elongation at break than the base material.
    Type: Application
    Filed: May 15, 2013
    Publication date: February 6, 2014
    Applicant: Bridgestone Americas Tire Operations, LLC
    Inventors: Todd Alan Buxton, Michael A. Berzins, Jon I. Stuckey, Benjamin Robert Rethmel, Kathleen Clemmer, Sam Givens
  • Publication number: 20140034200
    Abstract: A tire includes a circumferential tread constructed of a base material. The circumferential tread has a plurality of tread elements, with each of the plurality of tread elements having a top surface and a plurality of side surfaces. The circumferential tread further has a plurality of grooves disposed between the plurality of tread elements. A laminate covers at least some of the plurality of tread elements and at least some of the plurality of grooves. The laminate has greater snow traction than the base material.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 6, 2014
    Applicant: Bridgestone Americas Tire Operations, LLC
    Inventors: Jon I. STUCKEY, Kathleen CLEMMER, David JOHNSON, Jacob Lee WALTERS, Michael A. BERZINS, Wilbur Eugene HOLMES, Todd Alan BUXTON, Kent David WEATHERWAX, Autumn T. KAHWAJI
  • Patent number: 7950429
    Abstract: A tire for vehicles which does not require pressurization by means of a pressurized fluid has a tread, two sidewalls, and two beads which are attached to a wheel rim made of elastomer material, and is provided with at least one tubular reinforcement body which is associated with the tread; each of the sidewalls having a respective homogeneous resilient annular membrane, a straight generatrix of which forms an angle (A) other than 90° with the axis of the tire; the membranes being stretched radially between the tread and the beads such as to be pre-tensioned in the absence of external loads acting on the tire.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: May 31, 2011
    Assignee: Fiat Auto S.p.A.
    Inventors: Stefano Re Fiorentin, Mario Palazzetti, Giovanni Monfrino
  • Patent number: 7837778
    Abstract: This application is directed to a method of treating tires so that the tires will have better performance, especially when used for racing. The method disclosed herein is especially suited for use in go kart racing, although the method can be used for other applications in which the adhesion and hardness of tires, after their manufacture is to be altered. The method also includes cleaning steps and formulations. This method involves the selective use of various esters to alter tire characteristics as desired.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 23, 2010
    Inventor: Roland E. (Randy) Ransom
  • Patent number: 6688355
    Abstract: A three piece tire assembly 10 for mounting on dual rims 110 is disclosed. The assembly has a pair of tires 14 and a separate removable annular tread belt 12 for mounting over both tires 14 when they are laterally adjacent and coaxially aligned by mounting on a dual rim.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: February 10, 2004
    Assignee: The Boodyear Tire & Rubber Company
    Inventor: William Earl Rayman
  • Patent number: 6550508
    Abstract: A rubber composition for a tire tread, or a pneumatic tire using the same in a tire tread portion, wherein the tread portion contains a diene rubber; and carbon black and/or silica; and a gas-encapsulated thermoplastic resin and, further, a short fiber, a hard particle and/or a liquid polymer, and wherein the gas-encapsulated thermoplastic resin particle is obtained by expanding, upon heating. at a temperature of an expansion starting temperature thereof or more, prior to vulcanization of a rubber, a thermally expansible thermoplastic resin particle, which comprises a thermoplastic resin having an expansion starting temperature of from 70° C. to less than 120° C. and having a heat resistance to withstand vulcanization of rubber, followed by vulcanization to uniformly disperse the gas-encapsulated thermoplastic resin in the rubber, or a short fiber, a hard particle and/or a liquid polymer is further compounded to give a high frictional force on ice.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: April 22, 2003
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Yoichi Yamaguchi, Naoya Amino
  • Publication number: 20020179213
    Abstract: A three piece tire assembly 10 for mounting on dual rims 110 is disclosed. The assembly has a pair of tires 14 and a separate removable annular tread belt 12 for mounting over both tires 14 when they are laterally adjacent and coaxially aligned by mounting on a dual rim.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 5, 2002
    Inventor: William Earl Rayman
  • Publication number: 20020170641
    Abstract: A two-piece tire assembly 10 has a removable tread belt 12 for installing about the circumference of a tire carcass 14. The tread belt 12 has a radially outer ground contracting tread 15 and a radially inner belt reinforcing structure 100 having ply layers forming tread belts 84, 86, 88, 92. Radially inward of the belt reinforcing structure 100 is a radially inner portion 70, the radially inner portion 70 has a radially inner surface 72 in contact with the outer circumferential surface of the carcass 14. In one embodiment of the invention the radially inner surface 72 of the tread belt 12 and outer circumferential surface 71 of the carcass 14 have circumferentially extending grooves 74, 78 and ribs 72, 76 that complimentarily interlock. Traversing the ribs 72, 76 of the carcass or the tread belt are fluid or gas venting subsurface passages 80, 82 that are open to one or more groove 74, 78. The venting subsurface passages 80, 82 provide a convective cooling system for the two-piece tire assembly 10.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 21, 2002
    Inventor: William Earle Rayman
  • Patent number: 6357498
    Abstract: An improved track belt tire is constructed of a removable tread belt assembly mounted to a tire carcass with an embedded carcass ply having ply turnup ends about the bead wires. First, second, third, and fourth apex elements are disposed about each of the bead wires. The first of the apex elements is located adjacent and radially outward from each of the bead wires. The second of the apex elements is located between the overlying sides of the turnup ply. The third of the apex elements is disposed against the axially inwardly facing sides of the turnup ends of the carcass ply and the fourth of the apex elements is located against outwardly facing sides of the ply turnup ends of the carcass ply to encase the end portions of the ply turnup ends between the second and fourth apex elements.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: March 19, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: William Earl Rayman
  • Patent number: 6352090
    Abstract: An improved track belt tire is constructed of a removable tread belt assembly mounted to the outer circumferential surface of a multi-layered tire carcass with an embedded carcass ply having ply turnup ends looped around and extending axially inwards from the bead wires. The outermost ends of the first and second turnup ends being located radially outward at a distance equal to between about 2 and 3 times the diameters of the bead wires so that the ends of the turnup ends are supported by the flange ends of the tire rim when a tire carcass mounted to the tire rim is deflected. The turnup ends are also supported by first, second, third, and fourth apex elements disposed about each of the bead wires. The ply line of the first carcass ply layer can also follow the natural ply line.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: March 5, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: William Earl Rayman
  • Patent number: 6058994
    Abstract: 1. A rubber composition for a tire tread containing: (i) 100 parts by weight of a diene rubber, and (ii) 1 to 20 parts by weight of an elastic gas-encapsulated thermoplastic resin hollow particle having a particle size of 5-300 .mu.m, which is obtained by expanding, upon heating during vulcanization, a thermally expansible thermoplastic resin containing an encapsulated liquid or solid substance capable of generating a gas by vaporization, decomposition or chemical reaction upon heating to form the hollow-type expanded particle and, optionally containing (iii) 1 to 20 parts by weight of a short fiber or (iv) 1 to 20 parts by weight of a hard particle.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: May 9, 2000
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Naoya Amino, Yoichi Yamaguchi, Masayoshi Daio
  • Patent number: 4838329
    Abstract: A nonskid device for a tire, shoe sole or the like. The device comprises a stud that is embedded in a hole formed inwardly from the tread of the tire or shoe sole. The stud is a generally spherical or cylindrical body having an annular stud tip formed integrally therewith at one end thereof and is retained in the hole, either directly or via a cup, by an annular projection protruding inward from the wall of the hole. In normal slip-free travel, the stud tip does not project above the tread, and only the apex of the spherical or cylindrical body thereof is exposed at the plane of the tread. When the tread slips relative to the road surface, a force acts on the apex to cause the stud to rotate by a small angle. This causes the stud tip to rise beyond the plane of the tread and bite into the road surface.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: June 13, 1989
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventors: Kiyoyuki Ohuchi, Ken'ichi Shimizu
  • Patent number: 4274461
    Abstract: The present invention relates to an assembly-type tire protector comprising a plurality of annular members disposed substantially parallel to the tire surface and a plurality of link members disposed substantially perpendicular to the tire surface, said annular members being connected together by said link members to form a net, each of said link members comprising a body which is provided at both of its ends with opposing hook-like arm means for interconnecting said annular members, said opposing hook-like arm means defining an opening, a pin disposed upright in said body, said pin having a head portion and a base portion, said head portion substantially occupying said opening, said body of the link member containing a blind hole for receiving said base portion of the pin, and means disposed in said hole for expanding said base portion of the pin within said hole for locking said pin in position in said hole.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: June 23, 1981
    Assignee: Mitsubishi Seiko Kabushikikaisha
    Inventor: Satoshi Yamamoto
  • Patent number: 4125691
    Abstract: A zero pressure device is composed of either a microcellular or homogeneous polyurethane made by reacting an organic polyisocyanate with at least three polyols, a monomeric polyol of 2 to 3 hydroxyls having a molecular weight less than 250, a polyether triol having a molecular weight of 4600 to 6000 and a polyether glycol having a molecular weight of 3500 to 4200. When the zero pressured device is a run-flat ring for a tire wheel assembly, it has an average density of 60 to 65 pounds per cubic foot and 30 to 42 pounds per cubic foot when it is a tire.
    Type: Grant
    Filed: April 1, 1977
    Date of Patent: November 14, 1978
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: John R. White
  • Patent number: 3991802
    Abstract: A studded tire having excellent performance on ice and snow is formed by striking a plurality of pin type spikes into the tire at a region of 40 to 80% of the distance from circumferential center of tread to shoulder.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: November 16, 1976
    Assignee: Bridgestone Tire Company Limited
    Inventors: Yasushi Yokota, Hisao Tsuji
  • Patent number: 3987831
    Abstract: Anti-skid stud for road vehicle tires composed of a tungsten carbide rod enclosed in a sleeve.This sleeve, made of a plastic material, has a cylindrical or frustoconical stem with at least one flange flush with the tread, the diameter of the flange being greater than the largest diameter of the rest of the sleeve.This arrangement provides a high degree of stability of the projection of the carbide rod beyond the tire tread throughout the period of use.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: October 26, 1976
    Assignee: Ugine Carbone
    Inventors: Jean Walrave, Jean Champiot