Class 152/209.9 - Characterized by different groove widths

Subclass of Class 152 - Resilient tires and wheels
Definition: Tread having groove widths on one side of the equatorial
No. of patents: 31
Last issue date: 04/22/2008

Number	Title	Issue Date
7360569	Pneumatic tire with tread including circumferential rib region, block regions and sipes It is a subject to improve wet performances and noise performances while restricting degradations in dry performances, and for solving this subject, the pneumatic tire is comprised of a tread grounding surface that is partitioned into four to five regions by three t...	04/22/2008
7093631	Multipurpose tire for a motor vehicle The tread of a multipurpose tire includes a central region and first and second shoulder regions. Circumferential grooves separate the central and shoulder regions. The central region includes first and second rows of blocks. The first and second rows are arranged b...	08/22/2006
6971425	Tire for high-performance vehicles and premoulded tread band having an asymmetrical pattern A tire for a vehicle wheel includes a carcass structure, a belt structure, and a tread band. The tread band pattern includes a central zone and two axially-opposite shoulder zones. The central zone is delimited between axially-inner circumferential grooves and inclu...	12/06/2005
6796350	Vehicle tire having non-uniformly profiled tread with respect to its center A vehicle tire having a non-uniformly profiled tread with respect to its center, with a circumferential extending superwide groove having a width of at least 30 mm provided in one half of the tread and two further circumferential grooves which are narrower in compar...	09/28/2004
6668887	Vehicle tire with reinforcement beneath overwide circumferential tread groove A vehicle tire is described having at least one carcass ply extending between bead regions, a tread region (1) and a belt arrangement (3) disposed between the carcass and the tread as well as a tread profile provided in the tread region having at least on...	12/30/2003
6619352	Tread profile of a snow tire Tread profile of a snow tire for a vehicle in which at least two vehicle wheels are rotatably mountable outside of a longitudinal vehicle axis. The tread profile includes a plurality of profile block rows aligned in a circumferential direction and distrib...	09/16/2003
6607018	Pneumatic tire having tread including inboard side area and outboard side area A pneumatic tire. A central circumferential main groove is disposed to extend along a tire circumferential direction, along a ground contact center line of tread of the pneumatic tire. Inboard side circumferential main grooves and inboard side lateral mai...	08/19/2003
6450223	Pneumatic tire having improved wet traction A pneumatic tire having improved wet traction has two annular aquachannels. The tire has a wide, substantially square footprint, a distinctive tread pattern, and a new tread compound, and exhibits good QGL wet traction in addition to excellent hydroplanin...	09/17/2002
6439286	Vehicular pneumatic tire and process of making vehicular pneumatic tire Vehicular pneumatic tire having an asymmetric tread formed in relation to a circumference of a running surface and process of making vehicular pneumatic tire. The vehicular pneumatic tire includes an outside region that includes an outside shoulder block ...	08/27/2002
6119745	Pneumatic 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
6105644	Pneumatic tire including three asymmetrically arranged main grooves A pneumatic tire includes a tread portion provided with three straight main grooves extending continuously in the tire circumferential direction. The three main grooves are arranged asymmetrically about the tire equator such that an exterior main groove, ...	08/22/2000
5967210	Pneumatic tires having an asymmetric directional pattern A pneumatic tire having an excellent steering stability on wet road surface comprises a tread having an asymmetric directional tread pattern defined by steeply slant grooves and gently slant grooves arranged on at least both side regions, in which so-call...	10/19/1999
5688342	Pneumatic tire having ground contacting area A pneumatic tire has a tread part with two wide circumferential grooves extending in either side of the tire's equator so as to divide the tread part into a pair of shoulder parts and a central part. The central part has a surface utilizing successive con...	11/18/1997
5679185	Pneumatic tire A pneumatic tire having a tread portion with a convex profile, a pair of axially spaced bead portions, and sidewall portions extending therebetween. The tread portion is provided with a pair of circumferentially extending continuous grooves defining groov...	10/21/1997
5658404	Radial pneumatic light truck or automobile tire A radial pneumatic light truck or automobile tire 40 having a tread 42 is described. The tread 42 has a base 43, a plurality of traction elements 52 extending radially outwardly from the base 43 and at least one circumferentially continuous wide groove 54...	08/19/1997
5645657	Pneumatic tire including central part A pneumatic tire has a tread part with two wide circumferential grooves having a width GW of not less than 35 mm and not more than the ground-contacting width TW of the tread with one circumferential groove extending on each side of the tire's equator so ...	07/08/1997
5595619	Pneumatic tire including shoulder parts A pneumatic tire has a tread part with two wide circumferential grooves having a width GW of 35 mm or more and extending in either side of the tire's equator so as to divide the tread part into a pair of shoulder parts and a central part. The central part...	01/21/1997
5529101	High performance radial tire A high performance, radial tire having a tread, the tread has an intermediate groove between first and second lateral edges, circumferential grooves between the first lateral edge and the intermediate groove, and a circumferential groove or grooves betwee...	06/25/1996
5421387	Asymmetrical tire tread An asymmetrical tread for a tire has a midcircumferential plane and an inner side and an outer side when mounted on a vehicle wheel. The longitudinally extending ribs in a central segment have substantially equal surface contact areas and their contact su...	06/06/1995
5415215	Asymmetric tire A radial ply pneumatic tire (30) has as asymmetric tread portion (41) having circumferential grooves (50, 51, 52, 53) and diagonal grooves (55, 56) therein. The tread is divided into three axial regions (A, B, C) of equal width, and in each region the net...	05/16/1995
5407005	Tread for a tire An asymmetric non-directional tread 12 for a tire 10 is disclosed. The tread 12 has a plurality of ground engaging tread elements 22 separated by circumferential and lateral grooves 24,28. The net contact area in a first tread half 30 is approximately equ...	04/18/1995
5360043	Asymmetric tread for a tire An asymmetric directional tread for a tire is disclosed. The tread has a plurality of ground engaging tread elements separated by grooves. The grooves include one wide circumferentially continuous groove having a width W, a plurality of circumferentially ...	11/01/1994
5213641	Pair of radial tires with directional and symmetrical tread patterns A pair of radial tires consist of two tires each having a tread comprising annular land portions formed by a plurality of circumferential main grooves extending in the circumferential direction of the tire, and rows of blocks formed by extending transvers...	05/25/1993
5036138	Elastomeric compositions, process for the preparation thereof and tires containing them The present invention relates to an elastomeric composition suitable for tire treads comprising (1) 10-90% wt of a copolymer of a mono-aromatic vinyl compound and having a vinyl content of	07/30/1991
5016838	Aircraft tire having asymmetric tread A tire (10) suitable for use on an aircraft equippped with cambered landing gear has a symmetrical carcass structure (11) and belt structure (12) but has an asymmetrical tread portion (16). On one side of a central groove (17) the tread portion is devoid ...	05/21/1991
4905748	Heavy duty pneumatic tire A heavy duty pneumatic tire comprises a tread, two side walls, two beads, a radial carcass reinforcement, and a belt composed of at least two plies of which cords are intersected in the adjacent plies. The radius of curvature of the contour of the tread a...	03/06/1990
4840210	Heavy duty pneumatic radial tires A pneumatic radial tires having a tread of an asymmetrical profile are disclosed. A circumferential location at which a tread takes its maximum outer diameter is deviated from a tire equator outwardly opposite to a side on which the tire is to be mounted ...	06/20/1989
4730654	Asymetric pneumatic radial tire tread for passenger car A pneumatic radial tire having a block pattern asymmetric about the right and left portions on the ground-contacting portion of the tire which has a specific area ratio of grooves and a specific angle of subgrooves on the ground-contacting portion of the ...	03/15/1988
4635694	Pneumatic radial tire tread for heavy load A pneumatic radial tire for heavy load is provided in which a tread design formed on the tread portion is divided into a tread part Ab with larger ground contact area ratio and a tread part Aa with smaller ground contact area ratio with the tread equator ...	01/13/1987
4572261	Pneumatic tire tread A pneumatic tire having a tread portion comprises a mid-circumferential zig-zag rib and a plurality of blocks located in the edge portions of the tread between adjacent peaks of the zig-zag rib. The zig-zag rib has amplitude of between 60-70% of the tread...	02/25/1986
4546808	Pneumatic tire A pneumatic tire having a tread with a mid-circumferential plane and a plurality of circumferential grooves therein of two different configurations. The grooves of each configuration have differing widths and are interspersed together so that the total ar...	10/15/1985

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Class 152/209.9 - Characterized by different groove widths