Pneumatic Tire Or Inner Tube Patents (Class 152/450)
  • Patent number: 11220077
    Abstract: Process and an apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and having a circumferential dimension. The process determines the position in circumferential direction of the service area on the radially inner surface of the tyre, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element at the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 11, 2022
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Ivan Gildo Boscaino, Gianni Mancini, Cristiano Puppi, Erika Vaniglia
  • Patent number: 11220595
    Abstract: It has been unexpected found that silylated triglyceride oils can be incorporated into tire tread rubber formulations that include reinforcing fillers to provide improved wet traction characteristic, rolling resistance, and tread-wear without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). The level of silica coupling agent needed in such formulation can also typically reduced. The present invention more specifically discloses a rubber formulation which is comprised of (1) a rubbery polymer; (2) a reinforcing filler, such as silica or carbon black; and (3) a silylated triglyceride oil. The silylated triglyceride oil will include silyl groups of the structural formula: —(CH2)n—Si(OR)3, wherein n represents an integer within the range of 1 to 8, and wherein R represents an alkyl group containing from 1 to 8 carbon atoms.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 11, 2022
    Assignee: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Joseph John Kulig, Kelsey Elizabeth Cantwell, George Jim Papakonstantopoulos
  • Patent number: 11214101
    Abstract: A pneumatic tire according to the present technology is a pneumatic tire provided with a tread section, sidewall sections, and bead sections, a belt-shaped sound-absorbing member being bonded via an adhesive layer to an inner surface of the tire in a region corresponding to the tread section along the circumferential direction of the tire, wherein a bonding surface of the sound-absorbing member is provided with a bonded region that is bonded to the inner surface of the tire and an unbonded region that is not bonded to the inner surface of the tire, and the bonded region is divided by the unbonded region into a plurality of divisions along the circumferential direction of the tire.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: January 4, 2022
    Inventor: Atsushi Tanno
  • Patent number: 11167602
    Abstract: In a pneumatic tire, a sponge member extending in a tire circumferential direction is attached around an entire circumference of a tire inner peripheral surface of a tread portion. The sponge member includes at least: a first sponge layer; a second sponge layer laminated inward of the first sponge layer in a tire radial direction; and a third sponge layer laminated inward of the second sponge layer in the tire radial direction. Each of the first sponge layer and the third sponge layer has a smaller expansion ratio than an expansion ratio of the second sponge layer.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: November 9, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Kazuhiro Sakakibara
  • Patent number: 11161962
    Abstract: A rubber composition has an improved rolling resistance and is based on at least a diene elastomer comprising mainly at least one isoprene elastomer; a reinforcing filler comprising from 15 to 70 phr of carbon black having a BET specific surface area of less than 70 m2/g, and/or a COAN of less than 90 ml/100 g, and from 5 to 20 phr of silica; a salt of an alkaline-earth, alkali or lanthanide metal; and a crosslinking system; in which composition the carbon black to silica ratio is greater than 1.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 2, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Joël Barbouteau, Auriane Frisch, Kazuhide Mima, Natsuko Shiozawa
  • Patent number: 11130374
    Abstract: Pneumatic tyre (1) comprising a carcass ply (11), two ring beads (12), a tread strip (10), a tread belt (15) comprising at least two tread plies (16), an innerliner (2) and an additional functional material layer (4,5) arranged between the innerliner (2) and the inner cavity (17) of the pneumatic tyre (1), wherein between the innerliner (2) and the layer of additional functional material (4,5) a net layer (3) is interposed, which facilitates the removal thereof during disposal at the end-of-life of the pneumatic tyre.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 28, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Beatrice Mellara, Pasquale Agoretti, Giuseppe Pezzullo, Claudio D'Alfonso, Giampiero Pavoni
  • Patent number: 11117423
    Abstract: The pneumatic tire of the present technology includes: a tread portion; sidewall portions; and bead portions. A pattern of grooves is formed on the tread portion, and a strip-shaped sound-absorbing member is bonded along the tire circumferential direction to a region of the tire inner surface corresponding to the tread portion via an adhesive layer. A first ground contact region is defined between the tire ground contact edge on one side in the tire width direction and the tire equatorial plane, and a second ground contact region is defined between the tire ground contact edge on the other side in the tire width direction and the tire equatorial plane. The sound-absorbing member is offset with respect to the tire width direction so that the centroid of a cross-section of the sound-absorbing member in a plane that includes a tire axis is located within the first ground contact region.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: September 14, 2021
    Inventors: Yousuke Sakamoto, Atsushi Tanno
  • Patent number: 11090889
    Abstract: A curing bladder (7) for a tire has a shape of revolution about a central axis and a flexible wall made of crosslinked rubber, the external surface of which is intended to come into contact with the internal surface of a green tire during curing, the external surface having a relief structure having a plurality of air evacuation channels. The relief structure has first channels forming air evacuation grooves (100) arranged at a distance of between 2 and 5 mm, and having a depth of between 0.4 and 1 mm, two adjacent grooves defining, between one another, an inter-groove zone (500) having second channels forming air channelling furrows (1000) made so as to communicate with one another and with at least one of the grooves (100), the furrows each having a depth of between 0.01 and 0.4 mm and being situated at a distance of between 0.2 and 1 mm from one another.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 17, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Pialot, Alain Faugeras, Jose Merino Lopez
  • Patent number: 11027577
    Abstract: The provided tire has excellent durability regardless of use in a high-humidity environment or contact with water, even though the framework member of the tire is made of a resin material. The resin material is made of a resin composition including 60 mass % or more of a polyamide resin formed by polymerizing an aliphatic diamine having 6 to 20 carbon atoms and an aliphatic dicarboxylic acid having 10 to 20 carbon atoms.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 8, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Daisuke Nakajima
  • Patent number: 11014318
    Abstract: Provided are a pneumatic tire where a band-shaped surface fastener extending in a tire circumferential direction is mounted on a tire inner surface, a cut portion composed of a group of a plurality of notches extending in a width direction of this surface fastener without traversing this surface fastener is formed in this surface fastener repetitively along the tire circumferential direction, the surface fastener is divided into a plurality of components by these notches, and the surface fastener is disposed on the tire inner surface in a state where the cut portion is stretched so the components are continuous in the tire circumferential direction.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 25, 2021
    Inventors: Atsushi Tanno, Hayato Sakamoto
  • Patent number: 11001100
    Abstract: Provided is a pneumatic tire, which includes a tread portion having an annular shape and extending in a tire circumferential direction, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed on inner sides of the pair of sidewall portions in a tire radial direction, and a band-like sound absorbing member bonded to an inner surface of the tread portion along the tire circumferential direction. The band-like sound absorbing member includes a plurality of cuts in an outer circumferential surface of the band-like sound absorbing member. At least one end of each of the cuts terminates within the band-like sound absorbing member.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 11, 2021
    Inventor: Takashi Hoshiba
  • Patent number: 10933700
    Abstract: A pneumatic tire includes a band-like sound absorbing member adhered on an inner surface of a tread portion along the tire circumferential direction. Cuts are formed on the band-like sound absorbing member mutually intersecting such that angles ?1, ?2 with regard to the tire width direction are within a range where 0°??1?90° or 0°??2?90°. The cuts are locally disposed in a region adjacent to an end portion on a vehicle inner side of the band-like sound absorbing member. A width of the placement region of the cuts is from 10% to 80% with regard to a width of the band-like sound absorbing member.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 2, 2021
    Inventors: Tatsuro Shinzawa, Takashi Hoshiba, Masahiro Naruse
  • Patent number: 10935467
    Abstract: Apparatus for checking a tyre having: a support plane; a deformation element to generate a deformed surface portion; a positioning actuator to move the deformation element; and a device with a camera, a first light source, a second light source, a processing unit and a drive and control unit. The processing unit is programmed to activate the positioning actuator to move the deformation element towards the tyre to generate a deformed surface portion. The drive and control unit is programmed to: actuate the first light source to illuminate the deformed surface portion of the tyre, the second light source being inactive during the deformation; control the camera to acquire a first image of the deformed surface portion; actuate the second light source to illuminate an undeformed surface portion of the tyre; and control the camera to acquire a second image of the undeformed surface portion.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 2, 2021
    Assignee: PIRELLI TYRE S.P.A
    Inventors: Alessandro Held, Vincenzo Boffa, Daniele Pecoraro, Valeriano Ballardini, Josef Engelsberger, Bernd Leitner
  • Patent number: 10889709
    Abstract: Provided is a thermoplastic resin composition which enables the production of an inner liner for pneumatic tires, said inner liner having excellent durability and being suppressed in deterioration of air permeation prevention properties due to repeated deformation. A thermoplastic resin composition which is composed of a continuous phase containing an ethylene/vinyl alcohol copolymer and a polyamide and a dispersed phase containing a halogenated isomonoolefin/para-alkyl styrene copolymer, and which is characterized in that an acyl glycerol that is composed of glycerol and a fatty acid having 8 or less carbon atoms is contained in an amount of 0.5-20 parts by mass per 100 parts by mass of the ethylene/vinyl alcohol copolymer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 12, 2021
    Assignee: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Shun Sato
  • Patent number: 10864782
    Abstract: A noise damper, noise attenuation device, and tire and noise damper assembly are disclosed. The noise damper, noise attenuation device, and tire and noise damper assembly mitigate sound produced by a moving tire. The noise damper and noise attenuation device fit within a tire cavity and expand in reaction to a stimulus.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 15, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Martin A. Yurjevich, Amy M. Randall
  • Patent number: 10821777
    Abstract: This invention relates to a tire with a tread of a rubber composition for promoting a combination of beneficial wet traction and reduced rolling resistance, while limiting any loss of winter traction at low temperatures. The tread rubber composition contains a combination of high and lower glass transition temperature (Tg) elastomers. Its reinforcing filler is primarily precipitated silica. The high Tg elastomer is comprised of synthetic high vinyl polybutadiene rubber and the lower Tg elastomer is comprised of at least one of natural and synthetic cis 1,4-polyisoprene rubber. The tread rubber composition may contain at least one of vegetable oil based rubber processing aid and traction promoting resin. The tread rubber composition is intended to be exclusive of styrene-containing elastomers.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 3, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nihat Ali Isitman, Paul Harry Sandstrom, Luisa Fernanda Munoz Mejia
  • Patent number: 10800209
    Abstract: Provided is a tire which includes a circular tire frame formed from a resin material that contains a linear low-density polyethylene having a crystallization degree of from 110 J/g to 138 J.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: October 13, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Naoyuki Sone, Takahiro Suzuki, Atsushi Fukushima
  • Patent number: 10660398
    Abstract: A rubber member for laser bonding of the present invention containing a rubber ingredient and silica, wherein the silica has an average particle size of more than 50 nm and 120 nm or less, and the amount of the silica is 10 parts by mass to 50 parts by mass based on 100 parts by mass of the rubber ingredient, the rubber member has a laser light transmittance of 30% or more, provided that the laser light transmittance is a transmittance when the rubber member has a thickness of 2 mm and is irradiated with laser light having a wavelength of 808 nm.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 26, 2020
    Assignee: ASICS CORPORATION
    Inventors: Katsuhiro Imazato, Hironori Kitayama, Junichiro Tateishi, Sadaki Mori
  • Patent number: 10643763
    Abstract: The direct-current cable includes a conductive portion; and an insulating layer covering an outer periphery of the conductive portion, the insulating layer containing cross-linked base resin and inorganic filler, the base resin containing polyethylene, a BET specific surface area of the inorganic filler being greater than or equal to 5 m2/g and less than or equal to 150 m2/g, and a mean volume diameter of the inorganic filler being less than or equal to 1.0 ?m, the mass ratio of the inorganic filler with respect to the base resin being greater than or equal to 0.001 and less than or equal to 0.05, and the cross-linked base resin being cross-linked by a cross-linking agent containing organic peroxide.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 5, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takanori Yamazaki, Yoshinao Murata, Tomohiko Katayama
  • Patent number: 10563047
    Abstract: A rubber composition contains at least: a diene rubber, a silica, a silane coupling agent having a mercapto group, a plasticizer, and an oil and/or a resin; from 50 to 200 parts by mass of the silica per 100 parts by mass of the diene rubber and from 2 to 20 mass % of the silane coupling agent having a mercapto group relative to the amount of the silica being blended; and a total amount of the plasticizer and the oil and/or the resin being 60 parts by mass or greater per 100 parts by mass of the diene rubber.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: February 18, 2020
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Naoki Kushida
  • Patent number: 10538047
    Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves a first cover molding step for molding a first cover having a sidewall, an inner lining, a ply, beads and a tread-side edge, a tread ring forming step for forming a tread ring having a breaker, a band and a tread center part, a shaping step for pressure-bonding the tread ring and the first cover to mold this to the shape of the raw cover, and a turn-up step for bonding the side wall to the lateral surface of the first cover, wherein the tread-side edge is formed in a position adjacent to the end of the tread center portion in the shaping step, and in the turn-up step, the tread-side edge and the tread center part are bonded together.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 21, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masayuki Sakamoto, Takamichi Sagawa
  • Patent number: 10532615
    Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, a pair of beads is set, and the tread side part is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and the first cover is inflated, bonding the tread ring and the first cover with pressure; and a step in which the sidewall is folded back towards the lateral surface of the inflated first cover and bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 14, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masayuki Sakamoto, Takamichi Sagawa
  • Patent number: 10479880
    Abstract: Provided are a rubber composition for tires which achieves both abrasion resistance and processability while maintaining fuel economy, and a pneumatic tire including the rubber composition. A rubber composition for tires, containing an organosilicon compound represented by the average compositional formula (I) below having a ratio of the number of sulfur atoms to the number of silicon atoms of 1.0 to 1.5, wherein x represents the average number of sulfur atoms; m represents an integer of 6 to 12; and R1 to R6 are the same or different and each represent a C1-C6 alkyl or alkoxy group, at least one of R1 to R3 and at least one of R4 to R6 are the alkoxy groups, and two or more of the alkyl or alkoxy groups for R1 to R6 may be joined to form a ring.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 19, 2019
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ryuichi Tokimune, Tsuyoshi Tsuchida, Ryota Kitago, Soh Ishino, Hiroyuki Kishimoto, Munenao Hirokami, Tetsuro Yamada
  • Patent number: 10472492
    Abstract: As an additive composition capable of improving the processability, the low loss property and the breaking resistance of a silica compounded rubber composition, and a rubber composition excellent in processability, low loss property and breaking resistance, this disclosure provides an additive composition for silica compounded rubber composition comprising a glycerin fatty acid ester, wherein: the glycerin fatty acid ester is an ester of a glycerin and two or more fatty acids, a fatty acid component which is the most among the two or more fatty acids constituting the glycerin fatty acid ester being 10 to 90 mass % of all fatty acids; and a monoester component is contained in an amount of 50 to 100 mass % in the glycerin fatty acid ester, and provides a rubber composition comprising a diene based rubber, a silica, and the additive composition for silica compounded rubber composition.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: November 12, 2019
    Assignees: BRIDGESTONE CORPORATION, KAO CORPORATION
    Inventors: Makiko Yonemoto, Tetsuo Takano, Motoi Konishi
  • Patent number: 10465016
    Abstract: Provided is a modified rubber for a tire (A) obtained by modifying a natural rubber and/or a synthetic rubber with a compound represented by formula (1): wherein X is an acid to form a salt with a guanidine site.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 5, 2019
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Tomoki Iwata, Haruka Sakai, Kazuyoshi Uera
  • Patent number: 10442259
    Abstract: Provided is a tire with self-inflation device. The tube is inserted inside the side portion where the extension and contraction movements of the tire are mostly occurring in order to further enhance the efficiency of the air supply to the tire cavity during driving. The air compressed towards the driving direction is injected to the tire cavity, and the air from the outside is charged to the tube due to the negative pressure formed in the tube located in the opposite side of driving. The durability is enhanced by reducing the exposed portion of the regulator.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 15, 2019
    Assignee: KUMHO TIRE CO., INC.
    Inventors: Seong Jong Park, Sang Do Na, Hyoung Seok Kim, In Chul Sung
  • Patent number: 10427464
    Abstract: Disclosed is a pneumatic tire that includes a tread having a pattern asymmetrical about the tire equatorial plane, and that may reduce cavity resonance and has good steering stability. A pneumatic tire includes a tread portion having a pair of tread halves, the tread halves extending between the tire equatorial plane and respective outer ends in the tire width direction of the tread portion, respectively, and having different negative ratios. The tread portion has short fibers fixed to at least a portion of a tire inner peripheral surface of the tread portion, and one of the tread halves with a higher negative ratio has a higher short-fiber fixation area ratio than that of the other tread half.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Toshiyuki Watanabe
  • Patent number: 10428205
    Abstract: The present invention is directed to a pneumatic tire having a tread comprising a radially outer cap layer and radially inner cap layer underlying the outer cap layer; the outer cap layer comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), (A) from about 80 to about 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from ?85° C. to ?50° C.; (B) from about 20 to about 80 phr of natural rubber; and (C) from 30 to 70 phr of a process oil; (D) from 70 to 150 phr of silica; wherein the weight ratio of silica to oil in the outer cap is less than 2.2; the inner cap layer comprising a vulcanizable rubber composition comprising: (i) from about 60 to about 40 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from ?85° C. to ?50° C.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 1, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nihat Ali Isitman, Georges Marcel Victor Thielen
  • Patent number: 10391818
    Abstract: Disclosed are a pneumatic tire that includes a tread having a pattern asymmetrical about the tire equatorial plane, and that is easy to produce and may surely reduce cavity resonance without lowering repair efficiency, and a method of producing the same. A pneumatic tire includes a tread portion having a pair of tread halves, the tread halves extending between the tire equatorial plane and respective outer ends in the tire width direction of the tread portion, respectively, and having different negative ratios. The tread portion has short fibers fixed to at least a portion of a tire inner peripheral surface of the tread portion, and one of the tread halves with a higher negative ratio has a lower short-fiber fixation area ratio than that of the other tread half.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: August 27, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Toshiyuki Watanabe
  • Patent number: 10377178
    Abstract: The present invention aims to provide a rubber composition for tires that can improve processability, crack resistance, ozone resistance, discoloration resistance, and tire appearance while maintaining a good balance between them, and also to provide a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a rubber component; an antioxidant; and polyether, the rubber component having a combined content of polybutadiene rubber, natural rubber, and polyisoprene rubber of 80% by mass or more per 100% by mass of the rubber component, the rubber composition containing the antioxidant in an amount of 0.3 to 7.0 parts by mass per 100 parts by mass of the rubber component, the polyether having an average mass content of at least two consecutive polyethylene oxide units of 85% or less of the polyethylene oxide mass content of the polyether.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 13, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Ryuichi Tokimune, Naoya Kitamura, Kouji Kawaguchi, Naoya Hashimoto
  • Patent number: 10315468
    Abstract: The present invention provides a resonance noise reduction tire having a sound absorbing material mounted therein. The resonance noise reduction tire has a sound absorbing material which is mounted therein so as to be adhered to an inner liner formed inside the tire in a circumferential direction thereof. The sound absorbing material is adhered to the inner liner in the circumferential direction thereof, and is configured so that opposite ends thereof are adhered with being separated at a predetermined interval so as not to be abutted to each other.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: KUMHO TIRE CO., INC.
    Inventor: Jongsik Lee
  • Patent number: 10286737
    Abstract: A pneumatic tire of the present technology includes a tread portion, sidewall portions, bead portions, and a belt-shaped sound-absorbing member bonded to a region on a tire inner surface corresponding to the tread portion along the tire circumferential direction with an adhesive layer disposed between the tire inner surface and the sound-absorbing member. In such a pneumatic tire, an air agitation portion formed by an interruption in the sound-absorbing member is disposed in at least one location on the tire circumference.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 14, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Atsushi Tanno
  • Patent number: 10239355
    Abstract: A pneumatic tire includes a tread portion provided with a pair of central blocks arranged on both sides of a tire equator. Each of the central blocks includes a ground contacting face having an axially inner block edge facing the tire equator. The inner block edge extends in a V-shaped manner including a first inclined edge and a second inclined edge inclined in an opposite direction to the first inclined edge. The second inclined edge has a circumferential length shorter than a circumferential length of the first inclined edge. Each of the central blocks includes a first portion having the first inclined edge and a second portion having the second inclined edge. The second portion of the central block includes an end wall at an opposite side to the first portion. The end wall includes a stepwise wall extending in steps toward a groove bottom.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: March 26, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Mitsuru Sueyoshi, Akihiro Tamugi
  • Patent number: 10233313
    Abstract: The present technology provides a rubber composition including: (A) 100 parts by mass of a diene rubber; (B) from 5 to 200 parts by mass of silica; (C) from 1 to 20 mass % of a silane coupling agent relative to the silica; and (D) from 1 to 20 mass % of a glycerin mono-fatty acid ester relative to a mass of the silica (B), the glycerin mono-fatty acid ester being derived from a fatty acid having from 8 to 24 carbons; not less than 10 parts by mass out of 100 parts by mass of the diene rubber (A) having a hetero atom-containing functional group in a main chain and/or a terminal thereof.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 19, 2019
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Shin Tsukishima, Miyuki Oka, Makoto Ashiura
  • Patent number: 10174185
    Abstract: Provided is a pneumatic tire including a base tread formed from a rubber composition that can highly improve fuel economy, wet grip performance, and abrasion resistance while maintaining the balance between them. The pneumatic tire includes a base tread formed from a rubber composition, the rubber composition containing predetermined amounts of an isoprene rubber, a specified hydrogenated terpene resin, and a specified carbon black.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: January 8, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hirotoshi Otsuki
  • Patent number: 10167375
    Abstract: Provided is a rubber composition that, when adopted in a tire member such as a tread, displays low heat generation, high abrasion resistance, and high cut resistance, and enables excellent fatigue cracking resistance to be realized. The rubber composition contains carbon black that satisfies relationship formulae (1) to (3), shown below. 62.5×24M4DBP+hydrogen amount of carbon black?8337.5??(1) 24M4DBP?0.25×CTAB?62.5??(2) Dst+0.75×?D50?152.5??(3).
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Satoshi Hamatani
  • Patent number: 10160271
    Abstract: The pneumatic tire according to the present technology includes: one or more mechanical fastener members (A) disposed on the tire inner surface, which is one member of the pair of mechanical fasteners that can be separated into two members (A), (B) and that can be engaged with each other and which is secured to the tire cavity side, and the mechanical fastener members (A), (B) include a lock mechanism for locking the engagement.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: December 25, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Atsushi Tanno, Hayato Sakamoto
  • Patent number: 9962995
    Abstract: The invention relates to a bicycle tire with high riding comfort. A damping rubber insert (3) made from a highly elastic rubber is arranged between the tire tread (2) and the tire carcass. Said damping rubber insert (3) has a material thickness of between 0.2 and 2 mm, and the carcass insert ends (10) extend to a maximum of the lateral edge areas of the tire tread (2).
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 8, 2018
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Christian Wurmbäck
  • Patent number: 9920189
    Abstract: Provided is a rubber composition for a tire tread containing: a diene rubber; silica in an amount of from 60 to 200 parts by mass per 100 parts by mass of the rubber; a polysiloxane represented by the average composition formula: (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2; and an alkyl triethoxysilane having an alkyl group with from 7 to 20 carbon atoms. Also provided is a pneumatic tire using this rubber composition in the tire tread.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 20, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masaki Sato, Satoshi Mihara, Yoshihiro Goto
  • Patent number: 9873780
    Abstract: This invention relates to a tire with tread for promoting a combination of winter service at low temperatures and for promoting wet traction. The tread rubber contains a combination of a high or low Tg styrene/butadiene elastomer, cis 1,4-polybutadiene rubber, reinforcing filler comprised of precipitated silica, rubber processing oil and tris(2-ethyl hexyl) phosphate.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: January 23, 2018
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Paul Harry Sandstrom
  • Patent number: 9790301
    Abstract: Copolymers having a substantially heterogeneous composition distribution and strong UV absorption are the direct reaction product of an isoolefin and at least one terpene having the molecular formulae of (C5H8)n where n is equal to or greater than two, and optionally additional monomers. More specifically, the invention relates to copolymers of isobutylene and alloocimene that exhibit thermoplastic elastomeric properties and exhibit strong filler interaction. The present invention also relates to methods for producing copolymers of at least one isoolefin and at least one terepene by a two-phase living polymerization that produces a substantially linear triblock and multiblock copolymer having substantially heterogeneous distribution of the isoolefin and terpene units.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: October 17, 2017
    Assignee: The University of Akron
    Inventor: Judit E. Puskas
  • Patent number: 9758000
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: September 12, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Daniel Paul Luc Marie Hinque
  • Patent number: 9662944
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 30, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel Paul Luc Marie Hinque, Anne Therese Peronnet-Paquin, Gilles Bonnet, Gauthier Piret
  • Patent number: 9637613
    Abstract: A composition includes a diene rubber and a metal soap of the formula: M being a metal with an oxidation state of +3 or +4, and each R being any independently selected organic moiety including hydrogen. In addition, a method of making a rubber composition includes combining a polar solvent, a base, and a carboxylic acid and mixing these to form a Solution A. A source of metal ions in solution is added to Solution A, whereby mixing forms Product A. The metal in the source of metal ions is selected from the group consisting of metals with an oxidation state of +3 or +4. The product is isolated from Solution A and then is combined with a diene rubber composition to form a useful article, such as the tread of a tire.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: May 2, 2017
    Assignee: Bridgestone Corporation
    Inventor: Xiaorong Wang
  • Patent number: 9631074
    Abstract: A sulfur-crosslinkable rubber blend which includes from 60 to 100 phr of at least one butadiene rubber and 51 phr or more of at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers. In some aspects the sulfur-crosslinkable rubber has from 51 to 300 phr of the at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers, and in some cases, the hydrocarbon resin is built up to the extent of 30 to 100 wt. % from at least one aromatic monomer from the group consisting of alpha-methylstyrene and/or styrene and/or vinyltoluene and/or indene and/or coumarone and/or methylindene and/or methylcoumarone.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: April 25, 2017
    Assignee: Continental Reifen Deutchland GmbH
    Inventors: Fabian Peters, Thorsten Torbrügge, Carla Recker
  • Patent number: 9567456
    Abstract: Provided is a rubber composition for a tire tread containing: a diene rubber; silica in an amount of from 60 to 200 parts by mass per 100 parts by mass of the rubber; a polysiloxane represented by the average composition formula: (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2; and an alkyl triethoxysilane having an alkyl group with from 7 to 20 carbon atoms. Also provided is a pneumatic tire using this rubber composition in the tire tread.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: February 14, 2017
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masaki Sato, Satoshi Mihara, Yoshihiro Goto
  • Patent number: 9481209
    Abstract: A pneumatic vehicle tire includes a carcass, a tire belt configured radially outside of the carcass and a profiled tread. The tire belt is formed of a plurality of tire belt plies, of which at least two tire belt plies are configured as working plies having parallel reinforcements made of steel and embedded in rubber, and having an angle of 10° to 24° with respect to the circumferential direction (U). The reinforcements of the one working ply have an axial direction of inclination opposite with respect to the reinforcements of the other working ply. The reinforcements of the first of the two working plies have an extendability D of D<0.2% at 10% of the breaking force, and the reinforcements of the second of the two working plies have an extendability D of D>0.2% at 10% of the breaking force.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: November 1, 2016
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Theresia Becker, Thomas Glasewald
  • Patent number: 9359462
    Abstract: A modified high cis butadiene-isoprene copolymer, a method for producing the same, and a tire having the aforementioned polymer are provided. The method includes performing a polymerization step for forming a high cis butadiene-isoprene copolymer having an organometallic active site and reacting which copolymer with a modifier mixture via the organometallic active site for forming the modified high cis butadiene-isoprene copolymer. The modifier mixture comprises a first modifier and a second modifier. The first modifier has a chemical formula of X—R1-Si(R2)3, wherein X is an glycidoxy functional group, an isocyanate functional group, or a 2-(3,4-epoxycyclohexyl group), R1 is an alkylene group, and R2 is an alkyl group or an alkoxy group. The second modifier has a chemical formula of R3-Si(R4)3, wherein R3 is an alkoxy group or an aryloxy group, and R4 is an alkyl group, an alkoxy group, an aryloxy group or a cycloalkyl group.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: June 7, 2016
    Assignee: CHI MEI CORPORATION
    Inventors: Chih-Cheng Lee, Hung-Jui Kuo
  • Patent number: 9308784
    Abstract: A self-inflating tire assembly comprises a tire having a tread region, first and second sidewalls, and first and second bead regions, wherein the first and second sidewalls extend respectively from the first and second bead regions to the tread region, wherein the tread region and the first and second sidewalls enclose an annular tire cavity. Further, the assembly comprises an air passageway connected to one of the sidewalls and extending essentially in a circumferential direction of the tire for pumping air from outside of the tire into the tire cavity, wherein the air passageway has an air passageway inlet for receiving air from outside of the tire and an air passageway outlet for releasing air into the tire cavity.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 12, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Daniel Paul Luc Marie Hinque
  • Patent number: 9248707
    Abstract: An intelligent tire pressure management system capable of real-time tire pressure monitoring, vehicle load detection, and automatic tire inflation and deflation for maintaining optimal tire pressure in a commercial vehicle. Additional functions include counting tire rotations for calculating and recording distance travelled for each tire, and detecting wheel sliding due to locked-up tires. The system includes a chassis-mounted control box connecting to the vehicle air supply, a hubcap-mounted dual wheel valve apparatus integrated with a rotary union assembly that connects through the vehicle hollowed axles to the air tubes from the control box. The inflation/deflation supporting dual wheel valve apparatus has an embedded electronic unit that monitors individual tire pressure and temperature in real time, and communicates with the control box over the power line. Furthermore a load sensor integrated with the control box provides the system with the current vehicle load information.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: February 2, 2016
    Inventors: Joe Huayue Zhou, Steven Hiuman Wong