Arrangement Of Grooves Or Ribs In Sidewall Patents (Class 152/523)
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Patent number: 5385192Abstract: A pneumatic tire characterized in that an average thickness G.sub.U of the region of each of side walls which extends from a position corresponding to a widest portion of the tire toward a tread and that G.sub.L of the region of the side wall which extends from the same position toward a bead are set different from each other, the average thickness G.sub.U of the tread-side region being set to not less than 2.5 mm with the average thickness G.sub.L of the bead-side region set to less than 2.5 mm and not less than 1.0 mm.Type: GrantFiled: January 6, 1993Date of Patent: January 31, 1995Assignee: The Yokohama Rubber Co., Ltd.Inventors: Yoshiaki Hashimura, Masakazu Okihara, Yusaku Miyazaki, Zenichiro Shida, Tomohiko Kogure
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Patent number: 5380391Abstract: An article and method for marking elastomeric articles, such as tires, floor mats, and the like, includes an elastomeric sheet which is marked with indicia using a solvent based ink which contrasts with the elastomeric sheet. The indicia is cured with a clear thermoset layer such as a polyurethane. This is then applied to an uncured elastomeric article and the elastomeric article is cured. The heat and the pressure of curing causes the elastomeric sheet to bond to the elastomeric article. The indicia remains discernible and is not easily marred or dulled. After curing, the transfer can be further marked by heat transferring indicia in the form of a sublimation dye through the clear polyurethane layer.Type: GrantFiled: March 8, 1993Date of Patent: January 10, 1995Inventor: John Mahn, Jr.
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Patent number: 5373884Abstract: A pneumatic radial tire comprises a pair of bead portions, a pair of sidewall portion extending outward from the bead portions in radial direction, and a tread portion between the sidewall portions. In this tire, the sidewall portion ranging from a separation point of the tire from a rim to a tread end is equally divided into three regions, and at least one annular recess extending circumferentially of the tire is formed on an outer surface of each of these regions in the sidewall portion so that a maximum depth of the annular recess is 0.3 times or more of an original rubber gauge at a position corresponding to a deepest point of the annular recess.Type: GrantFiled: August 9, 1993Date of Patent: December 20, 1994Assignee: Bridgestone CorporationInventors: Tatsuhiko Kamegawa, Yukio Nakajima, Tsukasa Haneda
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Patent number: 5332016Abstract: A pneumatic tire comprising a pair of beads, and a carcass ply consisting of a main body located axially inside the beads and outer ply portions extending along the main body of the carcass ply axially outside each of the beads. A number of circumferentially spaced recesses are provided in the outer surface of the tire between a radially outer end of each of the outer ply portions and a location corresponding to a maximum width of the tire, and the recesses has a depth equal to 1/10 time to 1/2 time as large as a thickness of those portions of the tire which are provided with the recesses. The inclined angle of a base portion of each of the beads is about 15.degree. relative to the rotary axis of the tire. In the tire, 0.4P.ltoreq.W.ltoreq.0.8P and B.ltoreq.0.Type: GrantFiled: October 10, 1991Date of Patent: July 26, 1994Assignee: Bridgestone CorporationInventors: Makoto Tsuruta, Hiroyuki Iida, Yasuhiko Kobayashi, Hiroyuki Koseki
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Patent number: 5303758Abstract: A sidewall 12 of a tire 10 having a surface with distinctive design patterns is described. Pattern A has a plurality of ridges 20 of similar cross-sectional shapes, each ridge 20 being substantially parallel to an adjacent ridge 20. Pattern B is superimposed over a portion of the design pattern A. Pattern B has a plurality of parallel ridges 30 extending in an angular direction between 45.degree. and 90.degree. relative to the ridges 20 of pattern A. In one embodiment a pattern C is included, pattern C having at least two parallel ridges 40 angularly oriented in the range of 45.degree. to 90.degree. relative to the ridges 20 of pattern A. The ridges 20 of pattern A intersect two ridges 40 of pattern C. The design patterns may form a circumferentially continuous wide decorative band with striped alpha-numeric markings superimposed over a portion of the wide decorative band.Type: GrantFiled: June 15, 1992Date of Patent: April 19, 1994Assignee: The Goodyear Tire & Rubber CompanyInventors: Michel Clementz, Gilbert Feller, Raymond Merz
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Patent number: 5263525Abstract: A tire which is provided on a sidewall with an embossed mark (3), the embossed mark has an indent portion (5) and an outline portion (6), the outline portion has a top surface (6A) having a light color different from a dark color of the sidewall surface (2S) the bottom (5A) of the indent portion is provided with a rough surface to have a less luster than the sidewall surface, and preferably, the radial height of the mark is in the range from 15 mm to 60 mm, and the bottom of the indent portion is provided with a cross mesh pattern whose mesh pitches are 0.01 to 0.1 times the radial height H of the mark.Type: GrantFiled: June 30, 1992Date of Patent: November 23, 1993Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Fumikazu Yamashita
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Patent number: 5259431Abstract: This invention introduces a tire for aircraft. The tire of the invention is provided with drive means to revolve the wheel of the aircraft at landing procedure before the aircraft actually touches the ground. The drive means consist of airflow responsive configurations on the tire. Preferably vanes of a specific configuration are formed on the tire to cause a bigger resistance to airflow along the tire at the bottom-most portion of the tire relative to the uppermost portion of the revolving tire. The bigger resistance of that portion of the tire which is closer to the ground forces the tire to revolve. Thereby it is possible to revolve the wheels of the aircraft automatically by the movement of the aircraft through the air and as a result thereof the wheels of the aircraft revolve at the moment of touching the ground with a speed which is substantially equal at the periphery of the tire relative to the speed of the aircraft to the ground.Type: GrantFiled: December 4, 1989Date of Patent: November 9, 1993Inventor: Richard J. Housiaux
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Patent number: 5211780Abstract: A pneumatic radial tire for heavy-duty vehicles in which reinforcement belts comprising metal cords are disposed in the tread portion, and a plurality of main grooves extending in the circumferential direction of the tire are provided in the tread surface. In addition, recessed and projecting portions are provided on the edges of the tread surface in a zig-zag fashion along the circumferential direction of the tire.Type: GrantFiled: June 17, 1991Date of Patent: May 18, 1993Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazuyuki Kabe, Nobuhiro Yamashita, Izumi Kuramochi, Kohtaroh Iwabuchi
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Patent number: 5205880Abstract: A pneumatic tire involves a toroidal carcass ply extending between a pair of beads. The carcass ply consists of a main body located axially inside the beads and a pair of outer ply portions each extending along the main body of the carcass ply and on an axially outer side of the bead. A recess is provided on an outer surface of the tire between a radially outer end of each of the outer ply portions of the tire and the tire maximum width location such that a part of the recess is located in a zone surrounded by a curve C--C, a curve D--D, and an E-axis. The curve C--C satisfies d/s=1-0.825.times..sqroot.2.Type: GrantFiled: November 12, 1991Date of Patent: April 27, 1993Assignee: Bridgestone CorporationInventors: Hiroyuki Iida, Makoto Tsuruta, Yasuhiko Kobayashi, Hiroyuki Koseki
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Patent number: 5188683Abstract: A pneumatic tire particularly suited for agricultural or logging use is described. The tire has lateral-edge lugs with projections extending axially outward of the tire's maximum section width. The projections are radially inward of the ground contacting surface of the lug while also being radially outward of the inner tread surface. The projection extends axially inwardly and radially outwardly from the axially-outer-limit to the ground contacting surface of the tread lug. The projection further extends generally axially and radially inwardly from the axially-outer limit of the projection to the lateral edge of the inner tread surface from which the lug extends.Type: GrantFiled: April 22, 1991Date of Patent: February 23, 1993Assignee: The Goodyear Tire & Rubber CompanyInventor: Mark L. Bonko
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Patent number: 5176769Abstract: A radial tire for an aircraft includes a toroidal carcass layer consisting of carcass plies having cords embedded therein intersecting at angles of 70.degree.-90.degree. with respect to an equatorial plane of the tire, a tread rubber arranged radially outwardly of the carcass layers, and a belt layer arranged between the carcass layers and the tread rubber and constructed by laminating circumferential breaker plies and intersecting breaker plies. The circumferential breaker plies have cords embedded therein substantially in parallel with the equatorial plane. The intersecting breaker plies have cords embedded therein intersecting at angles of 10.degree.-70.degree. with respect to the equatorial plane. Both radially outermost and innermost breaker plies of the belt layers are constructed by intersecting breaker plies.Type: GrantFiled: October 16, 1989Date of Patent: January 5, 1993Assignee: Bridgestone CorporationInventors: Kuninobu Kadota, Shigeki Yamada
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Patent number: 5119857Abstract: A pneumatic radial tire capable of preventing the occurrence of uneven wear due to lateral force produced in the cornering is provided with a recess formed in at least one-side tread shoulder opening toward the side face of the tire and continuously extending circumferentially of the shoulder and has particular ratios of tire thickness to sidewall thickness and distance between deepest position of recession and equator of tire to distance between ground contact end of tread and equator of tire.Type: GrantFiled: January 25, 1990Date of Patent: June 9, 1992Assignee: Bridgestone CorporationInventor: Takashi Kukimoto
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Patent number: 4995437Abstract: The uneven wear produced in the tread side rib in the heavy duty pneumatic radial tire is prevented by arranging a peripheral fine groove on a particular region of the side face of the tread portion in a particular form.Type: GrantFiled: November 25, 1988Date of Patent: February 26, 1991Assignee: Bridgestone CorporationInventors: Yasutaka Enoki, Shigeo Makino, Shinji Murase
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Patent number: 4993466Abstract: The invention relates to a radial tire for heavy duty vehicles in which the wandering phenomenon can be effectively prevented. The tire has a tread surface defining a ground contacting area between the axially outer edges thereof and provided with at least one longitudinal groove extending in the circumferential direction of the tire; and a buffer plane extending radially inwardly from each of the axially outer edges of the tread surface so as to be formed substantially in part of a right circular cone having its axis placed on the tire axis, the buffer plane being provided with at least one buffer groove extending substantially continuously in the circumferential direction of the tire.Type: GrantFiled: December 5, 1988Date of Patent: February 19, 1991Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kiyoshi Ochiai
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Patent number: 4982773Abstract: A pneumatic tire design primarily for off road use has a pair of bead regions, a ground-engaging tread, and a pair of sidewalls between the beads and the tread. The inner tread surface between tread lugs and the tread edges has curvature in both the axial and circumferential directions. A series of projections are integral with a sidewall and are arranged in a circular pattern. Each projection is axially adjacent and axially outward of a portion of the inner tread surface and outwardly of the sidewall and is interposed between lateral tread lugs. The projections and lateral tread lugs are positioned to provide a means for deflecting radially directed debris away from the sidewalls. The sidewalls are protected without requiring circumferentially continuous projections.Type: GrantFiled: April 3, 1989Date of Patent: January 8, 1991Assignee: The Goodyear Tire & Rubber CompanyInventor: Mark L. Bonko
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Patent number: 4979549Abstract: This invention provides an automobile tire with communicating holes bored from the tire's tread to the sides of the tire. These holes permit snow or water which has come under the tire to be discharged to the outside through these communicating holes, thereby contributing to prevention of the tire's slip. For more effective discharge of snow or water, a well sliding surface material is applied on the inner surfaces of the communicating holes.Type: GrantFiled: April 21, 1989Date of Patent: December 25, 1990Inventor: Toshio Kaneko
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Patent number: 4967820Abstract: A white sidewall band for radial ply tires consisting of upstanding wall areas extending axially outward from surrounding sidewall areas and having white rubber disposed radially across the width of the band and recessed axially inward from one wall area to the other. Sidewalls of this type can be made using buffing stones having buffing surfaces of convex cross-section, and result in white sidewalls protected from dirtying during transportation, storage, and the like without introducing structural weakness in the sidewall area.Type: GrantFiled: December 14, 1988Date of Patent: November 6, 1990Assignee: Pirelli Armstrong Tire CorporationInventor: Robert A. McCarthy
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Patent number: 4947913Abstract: A pneumatic radial tire having such a radial cross-section that the profile of the outer surface of the tire side is composed of a plurality of straight lines and each intersection at which the straight lines meet with each other is formed so as to protrude in the outward direction of the cross-section of the tire.Type: GrantFiled: August 29, 1988Date of Patent: August 14, 1990Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazuyuki Kaba, Ken Takahashi, Masashi Kida
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Patent number: 4941522Abstract: A tire having a bar code provided in a side portion thereof, with the bar code having an uneven bar portion extending to both side edges of the bar code and substantially no difference in level between the surface of the side portion of the tire and peaks of the uneven bars in the uneven bar portion.Type: GrantFiled: October 5, 1988Date of Patent: July 17, 1990Assignee: The Yokohama Rubber Co., Ltd.Inventor: Mitsuo Sakurai
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Patent number: 4936365Abstract: A tire (10) is provided with a cast body (12). The cast body has an annular circumferentially extending isotropic portion (14) having a pair of anisotropic side portions (16,18) extending therefrom. The side portions are rendered anisotropic by geometric means. A reinforcing means (30) is attached to the inner or interior surface of the side portions and extends from the isotropic portion to a point radially inwardly of the maximum section width (SW) of the tire. The reinforcing means may include a number of alternating ridges and grooves (46,48). The body may be cast from an elastomeric material such as polyurethane. A tread (26) and belt package (28) is disposed over the body and may be either elastomeric or rubber.Type: GrantFiled: December 12, 1988Date of Patent: June 26, 1990Assignee: The Goodyear Tire & Rubber CompanyInventors: Dennis S. Chrobak, Peter P. Roch
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Patent number: 4926918Abstract: A pneumatic tire having a chine extending outwardly from at least one sidewall. The average thickness of the chine, between a point 50% of the width of the chine from the tire sidewall and the end of the chine, is at least 50% of the width of the chine.Type: GrantFiled: February 21, 1989Date of Patent: May 22, 1990Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward J. Demor, III, Walter W. Hinkel, Lewis T. Lukich
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Patent number: 4905747Abstract: A pneumatic radial tire having a carcass ply and a belt layer, wherein the tire has a shoulder portion formed stepwise in its meridian cross-section and an outer end portion in the widthwise direction of each step is notched in a circular zigzag shape in the circumferential direction of the tire.Type: GrantFiled: December 15, 1987Date of Patent: March 6, 1990Assignee: The Yokohama Rubber Co. Ltd.Inventor: Yukihiro Ogawa
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Patent number: 4892323Abstract: An all-terrain wheelchair includes a frame which has a steering platform attached to the forward most portion. The steering platform has an operable ground-engaging pneumatic wheel which is controlled by a steering handle. The steering handle may be selectively locked in a fixed position by an operable locking mechanism. A seat is attached to the rearward portion of the frame. Attached to the frame on each side of the seat is an elongated axle with a large diameter, ground-engaging wheel. Each wheel has a plurality of uniformly spaced tubular members secured to the outer peripheral sides of each wheel and extending horizontally outwardly therefrom. A removably attached arm on each axle can be operably engaged with the tubular members to cause forward or rearward motion of the vehicle. An operable winch is mounted forwardly of the seat on the frame.Type: GrantFiled: October 27, 1988Date of Patent: January 9, 1990Inventor: Stuart G. Oxford
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Patent number: 4856572Abstract: A radial off-road tire has a sidewall provided with a protective rib which s located substantially at or outwardly of the level of the maximum axial width of the carcass reinforcement. The geometrical characteristics of length, thickness and location of the protective rib to the rest of the wall, combined with the characteristics of meridian radius of curvature of the tread and the angle which the upper face of the sidewall makes with the direction parallel to the axis of rotation of the tire makes it possible to increase the life of the tire and minimize the rate of propagation of scratches initiated by cutting objects.Type: GrantFiled: September 11, 1987Date of Patent: August 15, 1989Assignee: Compagnie Generale des Etablissements Michelin-Michelin et cieInventors: Philippe Casanova, Jean-Louis Lateulere
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Patent number: 4823856Abstract: A rubber article (A) has a design (12) outlined by a serrated portion including a plurality of ribs (22) which are separated by grooves (20). The ribs and grooves are located in a surface (10) of the article (A) and the design (12) is defined by a substantially flat ungrooved portion of the article surface. The ribs (22) extend no further outwardly than the article surface (10).Type: GrantFiled: July 31, 1986Date of Patent: April 25, 1989Assignee: The Goodyear Tire & Rubber CompanyInventor: Charles W. Roberts
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Patent number: 4809757Abstract: A pneumatic tire having a decorative applique on the sidewall thereof. The applique is protected from damage when the sidewall is curbed by the provision of a rib concentric with the applique and interposed upon the sidewall between the applique and the tire tread. A decoupling groove interconnects the applique and the rib and allows the portion of the sidewall maintaining the applique to decouple from the remainder of the sidewall, deflecting inwardly when the sidewall makes contacting engagement with a vertical surface such as a curb. The deflection of the applique prevents contact with the curb and allows the rib to draw inwardly and over the outer edge of the applique, further protecting it from scuffing action. The decoupling groove may undercut the rib to be hidden from view. Further, a rib may be provided about the applique between the tire bead and applique to protect the applique in manufacture and handling.Type: GrantFiled: May 27, 1987Date of Patent: March 7, 1989Assignee: The Firestone Tire & Rubber CompanyInventor: Louis W. Shurman
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Patent number: 4747436Abstract: A tire having a pair of axially spaced-apart bead regions each reinforced by an annular bead hoop around which one edge of a carcass reinforcing ply is wrapped and a filler strip positioned in the axially outer region of the bead. The filter strip which extends circumferentially around the bead, has one edge radially inwards of the bead hoop and one edge axially outwards of the bead hoop characterized in that the filler strips in both beads have their cords laid at an angle to the same specified direction circumferentially such that the cords of one filler strip are substantially parallel to the cords of the other filler strip. The tire has an external direction marker in the same circumferential direction to the specified direction so that in use the tire may be fitted to a vehicle with the marker in the opposite direction to the greatest torque force from the wheel. The filler strip may be cut edge tire cord fabric or a single cord laid in a zig-zag to form the fabric.Type: GrantFiled: February 28, 1986Date of Patent: May 31, 1988Assignee: SP Tires UK LimitedInventor: Arthur R. Williams
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Patent number: 4714099Abstract: A pneumatic tire (T) having bead portions reinforced by a respective bead core (18) (19) and a bead reinforcing ply (15) (16). The reinforcing plies have cords (21) therein that are substantially parallel to each other and are arranged so that the cords (21) in one reinforcing ply (15) are substantially parallel to the cords (21) in the other ply (16). A direction mark (23) is located on an external surface of the tire to show the direction of the reinforcing cords (21) in relation to the rotational direction of the tire. When such tires are mounted on the axle unit they may be arranged so that the direction marks are pointed all in the same rotational direction.Type: GrantFiled: March 31, 1986Date of Patent: December 22, 1987Assignee: Apsley Metals LimitedInventor: James N. McGlashen
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Patent number: 4699193Abstract: A pneumatic tire having a decorative applique on the sidewall thereof. The applique is protected from damage when the sidewall is curbed by the provision of a rib concentric with the applique and interposed upon the sidewall between the applique and the tire tread. A decoupling groove interconnects the applique and the rib and allows the portion of the sidewall maintaining the applique to decouple from the remainder of the sidewall, deflecting inwardly when the sidewall makes contacting engagement with a vertical surface such as a curb. The deflection of the applique prevents contact with the curb and allows the rib to draw inwardly and over the outer edge of the applique, further protecting it from scuffing action.Type: GrantFiled: August 16, 1985Date of Patent: October 13, 1987Assignee: The Firestone Tire & Rubber CompanyInventors: Lynn A. Bryant, Louis W. Shurman
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Patent number: 4598747Abstract: A tire tread comprises elements in relief which are provided with undulated or broken line incisions. These incisions, which are of a width of less than 1 mm, have smaller amplitudes at the bottom of the incisions than at the surface of the tread.Type: GrantFiled: April 9, 1985Date of Patent: July 8, 1986Assignee: Compagnie Generale des Etablissements MichelinInventor: Charles Flechtner