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Class 152/209.24 - Having angle of inclination of one wall different from that of opposite wall


Subclass of Class 152 - Resilient tires and wheels
Definition: Tread wherein opposing walls of the groove or sipe have
No. of patents: 87
Last issue date: 10/05/2010


1      
NumberTitleIssue Date
7806156Tread pattern having wave-shaped and straight grooves
A tread pattern of a tire is disclosed which has wave-shaped and straight grooves capable of maintaining desired block rigidity and hydroplaning performance of the tire. In the tread pattern, which includes circumferential main grooves, transversal grooves formed be...
10/05/2010
7669624Pneumatic tire with tread having circumferential grooves
A pneumatic tire includes a tread surface on which a plurality of circumferential groove portions is formed. From among circumferential groove portions, a circumferential groove portion situated closest to a shoulder portion side in a tire width direction has a cent...
03/02/2010
7607464Pneumatic tire having circumferential grooves and oblique grooves
A pneumatic tire is provided with a pair of circumferential grooves (3) arranged in both sides of a tire equator (C), and a plurality of oblique grooves (4) having a steep decline portion (4a) extending to an outer side in a tire axial di...
10/27/2009
7527082Pneumatic tire with outermost circumferential grooves having zigzag bottoms
A pneumatic tire which has improved drainage property on a wet road surface and improved uneven wear resistance and steering stability on a dry road surface while enhancing drainage property on a wet road surface. The tire has at least a pair of circumferential groo...
05/05/2009
7416003Pneumatic tire with tread surface having specified direction of rotation
A tread surface the tire rotational direction of which is specified in one direction has a center region and shoulder regions on both sides of the center region. Blocks are defined in at least one of the shoulder regions by at least one first circumferential groove ...
08/26/2008
7392832Pneumatic tire having tread blocks with skewed walls
A pneumatic tire with an improved balance between noise reduction and hydroplaning resistance as the tread wears. The tread of the pneumatic tire includes skewed tread blocks having walls that, as the tread wears, change the character of the lateral and circumferent...
07/01/2008
7367370Surface profile of tread design components of a tire tread
A tread for a heavy vehicle tire, comprising at least one tread design component (3) delimited by at least two grooves, each component comprising a contact face (4) limited by edges (7, 8); the contact face (4) having, viewed in a cross-s...
05/06/2008
7347238Pneumatic tire with tread including chamfer portions
A pneumatic tire having improved wet performance without sacrificing steering stability. A pair of central circumferential main grooves 14 and a pair of side circumferential main grooves 16 are arranged on a tread 12, to obtain a fundamentally h...
03/25/2008
7337816Tire tread with circumferential and lateral grooves having asymmetrical cross-section
A pneumatic tire for dirt track racing comprising lateral and circumferential grooves forming blocks on the tread surface. The blocks have leading and trailing edge walls. The trailing edge walls of the blocks are buttressed by inclining the walls at an angle of 20Â...
03/04/2008
7322390Pneumatic tire having tread with blocks having obtuse angle corner portions
A tread surface, the tire rotational direction of which is specified in one direction, has a center region. Blocks having obtuse-angled corner portions and acute-angled corner portions are defined in the center region by at least one first circumferential groove ext...
01/29/2008
7322391Vehicle pneumatic tire having truncated groove
A tire including a tread rubber having at least one positive profile. Wherein the positive profile is formed by at least one circumferential groove. Further, the tire includes at least one truncated groove extending into the positive profile from the circumferential...
01/29/2008
7290578Tire tread having a tread block with an undercut design
The present invention provides for an improved tire tread having an improved hydroplaning resistance. Specifically, the tread includes one or more tread blocks having one or more walls with an undercut surface to deviate the flow of water from a circumferential groo...
11/06/2007
7270161Pneumatic tire for motorcycle
To provide a pneumatic tire for a motorcycle in which both wear resistance and wet steering stability can be attained. Since a pair of zigzag circumferential direction grooves 28 are positioned at the center of a tread central region 24C and has an amp...
09/18/2007
7234497Tyre for motorcycle
A tire for a motorcycle wherein the radius of curvature (R1) of a corner portion on one side (an inside in an axial direction) of a groove of the tire is smaller than a radius of curvature (R2) of the other corner portion; the radii of curvature (R1...
06/26/2007
7163039High-performance tire for a motor vehicle
A high-performance tire for a motor vehicle includes a carcass and tread band. The tire may be, for example, of the asymmetrical or directional type. The tread band includes a pattern including a central region, first and second shoulder regions, and first and secon...
01/16/2007
7114540Pneumatic tire including tread with main grooves
A pneumatic tire includes main grooves 1 extending substantially in a circumferential direction R of the tire, transverse grooves 2 connecting adjacent main grooves, and blocks 3 formed by adjacent main grooves and adjacent transverse grooves. E...
10/03/2006
7096904Off road tire having variable width puncture preventing pads
This invention relates to off-road tires, more specifically off-road tires for use with all-terrain vehicles, agricultural equipment, and construction equipment. A plurality of elongated pads are interposed between circumferentially adjacent lugs, preventing damage ...
08/29/2006
6986372Serrated groove sides in a tire
An improved tire tread has tread elements which form a tread pattern exhibiting two or more peripheral grooves and a plurality of transverse grooves extending inward from the outer (ground engaging) surface of the tread. Preferably the transverse grooves extend acro...
01/17/2006
6907909Pneumatic tire including pseudo-land part
A pneumatic tire comprises a tread portion having a plurality of slant grooves, in which each slant groove has a steeply slant groove portion and a gently slant groove portion, and the steeply slant groove portion comprises a pseudo-land part of a given shape, and c...
06/21/2005
6889733Vehicle tire having profiled tread including blocks
A vehicle having a profiled tread, having tread blocks (1) in at least some regions of its circumference, characterized in that for at least some of the tread blocks (1) at least the tread block edges (2) running into the tire contact patch (...
05/10/2005
6755227High-transverse-curvature tire, in particular for use in front wheels of motor-vehicles
A high-transverse-curvature tire (1), in particular to be mounted on the front wheel of a motor-vehicle, which includes a belt structure (6) including, in a radially external layer (9a), a plurality of circumferential coils (7a
06/29/2004
6640858Tire having tread grooves having right-hand groove wall and left-hand groove wall
A tire comprises a tread portion in which a mold parting line by a single-split mold runs on or near the tire equator. In a central part of the tread portion in which tread grooves are provided, the groove edges which are stroked by tire mold's protrusion...
11/04/2003
6609548Asymmetrical vehicle tire with balanced wet and dry performance
The tire of this invention has an asymmetrical tread pattern with a balanced inboard and outboard tread pattern. The tread pattern has a plurality of tread ribs with their average transverse widths equal to one another at the contact with the road surface...
08/26/2003
6604564Tread pattern motif for a tread
A tire tread having grooves of transverse general orientation defining a plurality of blocks arranged so as to form a tread pattern having a preferred direction of travel, the blocks having a contact face, two lateral faces, a leading face forming an angl...
08/12/2003
6595254Pneumatic tire including zig-zag main grooves
Disclosed is a pneumatic tire effectively controlling uneven wear occurring in the vicinity of a main groove even if a groove width of the main groove is widened due to change in tread radius during inflation. In the pneumatic tire, with regard to a zigza...
07/22/2003
6571843Pneumatic tire including blocks with V-shaped corners
A pneumatic tire comprises a tread portion provided with blocks, each block provided with circumferentially opening V-shaped corners each defined between two corner walls intersecting each other. In a cross section including the intersecting line K of the...
06/03/2003
6564841Pneumatic tire having zig-zag circumferential main grooves
Disclosed is a pneumatic tire effectively controlling uneven wear occurring in the vicinity of a main groove even if a groove width of the main groove is narrowed due to change in tread radius during inflation. In the pneumatic tire, with regard to a zigz...
05/20/2003
6527024Tire having tread including shoulder grooves
A tire having a ground contacting tread, the tread having a directional tread pattern comprising at least two substantially circumferentially extending grooves disposed one each side of the tread circumferential centerline and a plurality of circumferenti...
03/04/2003
6474381Pneumatic tire including axial grooves
A pneumatic tire comprises a tread portion provided with a longitudinal main groove extending continuously in the tire circumferential direction and axial grooves each having at least one opening into the longitudinal main groove, and at least one of two ...
11/05/2002
6467517Tire having sacrificial bridging
The present invention provides a pneumatic tire having a tread portion comprising a plurality of axially spaced apart essentially longitudinal grooves separating essentially longitudinal ribs. On at least one of said ribs, transverse grooves or cuts repea...
10/22/2002
6382283Tire for vehicle wheels including sipes
A tire for vehicle wheels, provided with a tread band, includes a plurality of raised blocks confined between at least two longitudinal grooves, at least two transverse grooves meeting the longitudinal grooves, and a first and second series of sipes forme...
05/07/2002
6343636Pneumatic tire including non-directional tread pattern
A pneumatic tire which comprises a tread portion provided on each side of the tire equator with axial grooves extending axially inwardly from the tread edges, the axial grooves inclined to one direction with respect to the tire axial direction to form a n...
02/05/2002
6340041Pneumatic tire including two wide circumferential grooves
A pneumatic tire including a tread portion provided with two circumferential grooves to divide the tread portion into a pair of shoulder parts and a central part therebetween, each of the circumferential grooves has such a relatively wide width that the m...
01/22/2002
6336485Pneumatic radial tire including blocks having different lengths
A pneumatic radial tire comprises a radial carcass, a belt, and a row of many blocks having different lengths along a circumference of a ground contact region under pitch variation defined in a tread rubber of the tread portion by at least two straight ma...
01/08/2002
6311747High-transverse-curvature tire, in particular for use in rear wheels of motor-vehicles
A high-transverse-curvature tire (1), in particular for mounting onto the rear wheel of motor-vehicles, comprises a tread band (8), coaxially extended around a belt structure (6), wherein a plurality of rubber blocks (10), defined between a plurality of g...
11/06/2001
6206064Pneumatic tire having directional tread pattern
At a portion of an inclined main groove from a tread center to an auxiliary groove of a pneumatic tire, an angle of inclination θ1 of a groove wall surface at a block step-in end side is set to be smaller than an angle of inclination θ2 of a groove wall...
03/27/2001
6179027Agricultural pneumatic tires having directional lugs
An agricultural pneumatic tire comprises a tread provided with many lugs extending at a given inclination angle from a central portion of the tread toward both ends of the tread and alternately arranged right and left with respect to an equatorial plane a...
01/30/2001
6119745Pneumatic tire including only one wide groove
A pneumatic tire has a tread portion with one circumferential wide groove extending continuously in the circumferential direction. A centroid of the cross-section of the circumferential wide groove deviates from the tire's equatorial plane so as to divide...
09/19/2000
6079464Studless tire having lateral grooves
A pneumatic tire comprises: a tread rubber having a Shore A hardness of not more than 65 degrees at 20 degrees C.; a tread portion provided with at least one circumferential row of blocks having circumferential edges adjacent to lateral grooves; each of t...
06/27/2000
6070631High-transverse-curvature tire, in particular for front wheels of motor-vehicles
A high-transverse-curvature tire (1), in particular to be mounted on the front wheel of a motor-vehicle, comprises a belt structure (6) including, in a radially external layer (9a), a plurality of circumferential coils (7a), axially arranged side by side,...
06/06/2000
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