Patents Examined by Justin R Fischer
  • Heavy duty pneumatic tire
    Patent number: 11390120
    Abstract: A tire 2 has a nominal cross-sectional width not less than 355 mm and a nominal aspect ratio not greater than 70%, and includes a tread 8 having a tread surface 4 that comes into contact with a road surface, and a belt 18 located radially inward of the tread 8. A ratio of a width of the tread surface 4 to a camber amount of the tread surface 4 at an end of the tread surface 4 is not less than 20 and not greater than 30. Regarding a thickness from the belt 18 to the tread surface 4, a ratio of a thickness at an equator plane to a thickness at an end 36 of the belt 18 is not less than 0.95 and not greater than 1.05.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: July 19, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tetsuya Kitano
  • Crown architecture of an electrically conductive tire for a civil engineering vehicle
    Patent number: 11383561
    Abstract: The compromise between the performance aspects of endurance and wear of a tyre for construction plant vehicles is improved, while limiting the mean operating temperature thereof to an appropriate level of around 100° C., and while ensuring its capacity of being electrically conductive, that is to say of discharging electrostatic charges that have built up during running. For this purpose, the tread comprises three parts: two electrically conductive tread wings and a central portion that is optimized in terms of hysteresis and is therefore not electrically conductive. The pathway for discharging electrostatic charges connects the tread wings to the rim, passing via electrically conductive edging rubbers positioned at the axial ends of the layers of the crown.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: July 12, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Thierry Royer
  • Pneumatic tire, pneumatic-tire mold, two-dimensional-code engraved-mark testing method, and pneumatic-tire manufacturing method
    Patent number: 11364749
    Abstract: A tire side surface of a pneumatic tire includes a two-dimensional code in which a dot pattern is formed by two types of gray scale elements formed identifiable from each other by recesses and protrusions of the tire side surface, or a predetermined two-dimensional code arrangement region. The tire side surface further includes at least two marks formed in a protruded shape or a recessed shape, and the two marks are disposed on an identical position in a first direction of a tire radial direction and a tire circumferential direction and disposed separated from each other at different positions in a second direction of the tire radial direction and the tire circumferential direction to sandwich an outer edge of the two-dimensional code or the predetermined two-dimensional code arrangement region from the opposite sides in at least one of the tire radial direction or the tire circumferential direction.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 21, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Atsuya Hatano
  • Pneumatic tire
    Patent number: 11364751
    Abstract: In a pneumatic tire mountable on a 5°-tapered rim, a bottom of a bead core is inclined from 0°-5° in a direction in which the bottom diverges toward an outer side in a radial direction as the bottom extends from an inner side in the width direction toward an outer side in the width direction. Each bead portion includes a base, a toe, and a heel. The base is inclined from 8°-12° in a direction in which the bead base portion diverges toward the outer side in the radial direction as the base extends from the inner side toward the outer side in the width direction. The heel has a radius of curvature from 25-30 mm. A rim cushion rubber has a modulus at 100% elongation within a range from 5.0-8.0 MPa. The toe has a displacement between before and after mounting on the rim from 9.0-13.5 mm.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: June 21, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Hiroaki Honda
  • Bias tire
    Patent number: 11358413
    Abstract: A bias tire includes two or more carcass layers, at least one belt disposed outward from the carcass layers in a tire radial direction, a reinforcing rubber layer disposed between carcass plies included in a carcass layer of the carcass layers. A belt width of a widest belt with the widest width of the belts is 110% or more and 150% or less of a tread developed width, and a position of an upper end portion of the reinforcing rubber layer located outward in the tire radial direction is apart 3 mm or more from an end portion of the widest belt.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: June 14, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takamasa Motomitsu
  • Pneumatic tire
    Patent number: 11331952
    Abstract: A pneumatic tire comprises a mesh reinforcing layer formed from a tape wound circumferentially of the tire plural turns while repeating a zigzag unit comprising two inclined portion so that a number N of the repeated zigzag units are arranged while shifting in the tire circumferential direction and partly overlapping with each other. The amount of positional shift between the circumferentially adjacent zigzag units is in a range from 0.7 to 1.3 times a value of 360/N in terms of the angle ? around the tire rotational axis.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 17, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Wataru Isaka
  • Ultrasonic welding type wheel resonator
    Patent number: 11318789
    Abstract: A wheel resonator for reducing a resonance phenomenon inside a tire of a vehicle may include a plurality of wheel resonators mounted to a tire wheel. First and second wheel resonators of the plurality of wheel resonators are fixed with each other by a fastening part including a protrusion disposed on an end of the first wheel resonator penetrating through a hole disposed in an end of the second wheel resonator. An end portion of the protrusion has a size greater than a size of the hole. As such, quality of a wheel through more reliable noise reduction by making a wheel resonator in a manner of forming a fitting type fastening part in the wheel resonator itself and fixing the wheel resonator by ultrasonic welding can be improved.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: May 3, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, HANDS CORPORATION LTD.
    Inventors: Joong-Wook Lee, Jong-Wook Lee, Tae-Soo Chi, Eun-Sang Ryu, Nam-Young Kim, Suk-Jin Ko, Hyun-Soo Kim, Keon-Ki Han, Kyoung-Duck Shin, In-Bum Hwang
  • Pneumatic tire
    Patent number: 11318793
    Abstract: A pneumatic tire has a tread reinforcing layer comprising a net structure formed from a tape of rubber coated reinforcing cord(s). The net structure comprises first oblique segments and second oblique segments of the tape which intersect with each other, forming interspaces therebetween. The first oblique segment has a first axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward one end in the tire axial direction of the net structure. The second oblique segment has a second axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward the above-said one end of the net structure. The first axial outside part is connected to the second axial outside part directly or through a circumferential segment of the tape.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masafumi Otani
  • Pneumatic tire
    Patent number: 11318799
    Abstract: A pneumatic tire is provided with an electrically conductive portion at least extending continuously from a bead portion to a belt layer. The electrically conductive portion has a linear structure. The linear structure includes an electrically conductive linear member linearly formed of electrically conductive material with an electrical line resistivity of less than 1×10{circumflex over (?)}8 ?/cm. The electrically conductive portion ensures an electrically conductive path from the bead portion to the belt layer.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: May 3, 2022
    Inventors: Hiroshi Hata, Hidekazu Ishii
  • Pneumatic tire
    Patent number: 11312191
    Abstract: A pneumatic tire 1 comprises a carcass 6 extending between bead cores of bead portions via a tread portion 2 and sidewall portions, and a belt layer 7 arranged on an outer side in a tire radial direction of the carcass 6 and inside of the tread portion 2. The pneumatic tire 1 further comprises a damping rubber body 30 arranged between the carcass 6 and the belt layer 7, and a noise damper 20 arranged on an inner cavity surface of the tread portion 2. A width W1 in a tire axial direction of the damping rubber body 30 is in a range of from 60% to 130% of a width W2 in the tire axial direction of the belt layer 7, and a water absorption rate of the noise damper 20 is in a range of from 10% to 25%.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 26, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masako Nakatani, Takahiro Kawachi, Ayuko Yamada, Takuya Horiguchi, Masataka Hiro, Takayuki Nagase, Hiroshi Ito, Fumiya Kato, Subaru Toya
  • Pneumatic tire
    Patent number: 11305585
    Abstract: A pneumatic tire comprising a carcass 12, at least one inclined belt layer 13, at least one first circumferential cord layer 14 arranged inward in the tire radial direction of the inclined belt layer 13, a tread 16 arranged outward in the tire radial direction of the inclined belt layer 13, and a second circumferential cord layer 15 which is arranged outward in the tire radial direction so as to cover a tire width direction end of the inclined belt layer 13, and where X is defined as X=Y×n×m×d, Y is the Young's modulus (GPa) of the cord, n is the number of cords implanted (cords/50 mm), d is the cord diameter (mm), and m is the number of the first circumferential cord layers 14, X is smaller than X of the first circumferential cord layer 14.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 19, 2022
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Isao Kuwayama
  • Pneumatic tire
    Patent number: 11305591
    Abstract: A pneumatic tire comprises a puncture prevention member adhered to at least a part of an inner surface of a tire body, wherein the puncture prevention member includes one or more protective layers each of which includes: an internal pressure retention layer; and a protective material located on a tire outer surface side of the internal pressure retention layer in at least a part of an extending region of the internal pressure retention layer.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: April 19, 2022
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yuta Hoshino
  • Pneumatic tire
    Patent number: 11279179
    Abstract: A tire includes a side protector at each side surface thereof. The tire satisfies mathematical formulas (1) and (2): R2>R1??(1) R2>R3??(2) wherein R1 represents a ratio of lands in a zone, of the side surface, between a position of a radially inner end of the side protector and a position at 70% of a height of the tire, R2 represents a ratio of lands in a zone, of the side surface, between the position at 70% of the height of the tire and a position at 85% of the height of the tire, and R3 represents a ratio of lands in a zone, of the side surface, between the position at 85% of the height of the tire and a position at 97% of the height of the tire.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 22, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kazuma Mori
  • Tire for a motorcycle
    Patent number: 11279180
    Abstract: When (I) a tyre 1 is in contact with a flat surface (S) with a camber angle ? of 40 degrees, (II) a load (F) applied to the tyre is increased from zero, and (III) a curve (T) is obtained by plotting, in a XY coordinate, a displacement (?x) in a tyre axial direction and a displacement (?y) in a tyre radial direction of a position (A) of one of tyre tread edges (Te) closer to the flat surface (S), the displacements being from a reference position (A0) when the load (F) is zero, inclination of the curve (T) increases as the load (F) increases at least in a range where the load (F) is not more than 78% of a maximum load capacity load of the tyre.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: March 22, 2022
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Ryota Sato
  • Tire with improved belt structure
    Patent number: 11267288
    Abstract: A tire comprises at least first and second working plies (16, 18) respectively comprising first and second reinforcing elements (50, 52) in which at least one of the following relationships is satisfied: ?4053×E1+4720?(D14×d1×1000)/E1??(I) ?4053×E2+4720?(D24×d2×1000)/E2??(II) where D1, D2 are the diameter of each reinforcing element (50, 52) made up of a metallic monofilament (66, 68), and D1 and/or D2 ranges from 0.34 to 0.38 mm, d1, d2 are the density of the reinforcing elements (50, 52), expressed in monofilaments per decimetre, and E1, E2 are the mean thickness of the working ply (16, 18), expressed in mm.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 8, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Aymeric Bonnet, Guilaine Canevet, Jean-Charles Derobert-Mazure
  • Segmented inner tube
    Patent number: 11260694
    Abstract: An inner tube comprising a unitary tube segmented into a plurality of chambers, the plurality of chambers interconnected therebetween. A plurality of interconnections may be respectively configured between the plurality of chambers wherein the plurality of interconnections may be operable to control airflow between adjacent ones of the plurality of chambers. A valve coupled to the unitary tube, the valve operable to allow introduction of air into the plurality of chambers through the plurality of interconnections.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 1, 2022
    Assignee: Eidon, LLC
    Inventor: Roger N. Johnson
  • Pneumatic tire
    Patent number: 11260704
    Abstract: A pneumatic tire mountable on a 15° tapered specified rim includes a bead core, a carcass, a steel cord reinforcing layer, a bead rubber layer, an organic fiber reinforced layer, and a first reinforcing rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 12 mm, a complex modulus of the first reinforcing rubber layer is from 6 MPa to 10 MPa, an elongation at break of the first reinforcing rubber layer is from 300% to 450%, and a difference between a first height and a second height is from 3 mm to 15 mm.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 1, 2022
    Inventor: Koji Nishio
  • Pneumatic tire
    Patent number: 11241921
    Abstract: In a pneumatic tire on a rim with 5° taper, a bead core includes a bead core bottom inclined 0° to 5° with respect to a rotation axis in a direction in which the bead core bottom extends outward in a radial direction from an inner side toward an outer side in the lateral direction, a bead portion includes a bead base portion inclined 8° to 12° with respect to the rotation axis in a direction in which the bead base portion extends outward in the radial direction from the inner side toward the outer side in the lateral direction. A bead width BW is a distance between tire inner and outer surfaces on a straight line through a bead core center in the meridian cross-section and parallel to the bead base portion. The bead core has a maximum width CW within a range of (BW×0.54)?CW?(BW×0.58).
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 8, 2022
    Inventor: Risa Tauchi
  • Pneumatic tire
    Patent number: 11235620
    Abstract: A pneumatic tire comprising a carcass 11, at least one inclined belt layer 13 having a cord extending inclined at an angle of 30° or more relative to the tire circumferential direction, and a tread 15 arranged outward in the tire radial direction of the inclined belt layer 13, wherein a circumferential cord layer 14 arranged inward in the tire radial direction of the tread 15 has a high-rigidity region and a low-rigidity region and the high-rigidity region has a lower negative ratio in a ground contact width of the tread 15 than the low-rigidity region.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 1, 2022
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Isao Kuwayama
  • Heavy-duty pneumatic tire
    Patent number: 11235618
    Abstract: A heavy-duty pneumatic tire includes a section width being equal to or less than 335 mm, an aspect ratio being equal to or less than 55%, and a toroidal carcass extending between axially spaced bead portions through a tread portion and sidewall portions. The carcass includes a carcass ply which includes a main portion and a turn-up portion turned up around a bead core of each bead portion. A belt layer is disposed radially outward of the carcass in the tread portion, wherein a radially outer end of the turn-up portion is located between the main portion and the belt layer in the tread portion. A sheeted rubber layer is disposed between the main portion and the turn-up portions in each sidewall portion.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 1, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yoshiki Kanaya, Yoshiyuki Takada, Mitsuharu Koya