The Goodyear & Tire Rubber Company

Donald W Gilliam

Michael Alois Kolowski

Anthony J Scarpitti

Keith Carl Trares

Stephanie Carol Brown

Frederick W Miller, Iii

Frederick William Miller

Andy N Hoang

Andy Ngoc Hoang

Amit Prakash

Gary Edwin Tubb

Max Harold Dixon

Dale Edward Umstot

Sean D Montag

Joseph Henry Laco

Theresa Marie Nopper

William Butterworth Allison

Robert Edgar Boore

Tuck Foo Thum

Stephenie C Brown

The pneumatic tire has a single carcass ply reinforced with parallel metallic cords, each cord composed of at least one filament having a tensile strength of at least (&minus;2000&times;D&plus;4400 MPa) &times;95%, where D is the filament diameter in millimeters. The turnup portion of the single carcass ply in the bead portion of a pneumatic tire is interposed between the bead core and a toe guard , and the radially outer edge of each turnup portion being in contact with the main portion of the carcass ply and extending to an end point 0.5 to 4.0 inches (12.7 to 101.6 mm) radially outward of the bead core. The toe guard has a first and second end and each end is disposed directly adjacent to the carcass ply. The first end of the toe guard is located on the axially inner side of the main portion of the carcass ply at a location about 0.4 to 3.5 inches (10 to 89 mm) radially outward of the bead core and the second end is located at a point ranging from substantially the axially outermost point of the bead core to a location about 3.5 inches (89 mm) radially outward of the bead core. The first end and second end of the toe guard is a shorter distance from the bead core than the end point of the turnup portion of the carcass ply.

Pneumatic tire having a single carcass ply reinforced with metallic cords, a high ending ply, turnup and locked bead construction

Tire tread

A pneumatic radial tire combination for four-wheeled automobile or light truck vehicles. The tire combination has a pair of front steer position tires and a pair of rear position tires. The front steer position tire has a footprint when the tire is normally inflated for normal load that has a footprint shape factor of greater than 1.00 at a 50% load, and about 1.00 at both 85% load and 100% load, the footprint shape factor being defined as the maximum circumferential extent of the tire's footprint at the centerplane of the tire's footprint width divided by the average of the circumferential extent of the tire's footprint width as measured at 40% of the footprint from both sides of the central plane of the footprint. The rear position tire footprint, when the tire is normally inflated for normal load, has a footprint shape factor of about 1.00 at 50% load, and 1.00 or less than 1.00 at 85% load and 100% load when measured similar to the method described for the front position tires.

Footprints for nonrotatable automobile and light truck tires

A pneumatic radial tire combination for four-wheeled automobile or light truck vehicles. The tire combination has a pair of front steer position tires and a pair of rear position tires. The front steer position tire has a first tread arc when the tire is normally inflated for normal load but unloaded, of decreasing radii extending toward the lateral edges and a straight line drawn between the intersection of the tread arc curvature and the centerplane is inclined at an angle &thgr; of greater than 5&deg; relative to a tangent line L, L being tangent to the tread arc at the centerplane and parallel to the axis of rotation R. The rear tire 20 when similarly measured has a tread arc having an angle &thgr; of less than 5&deg;.

Front tires and rear tires for automobile or light truck

The pneumatic tire has a single carcass ply reinforced with parallel metallic cords, each cord composed of at least one filament having a tensile strength of at least (-2000.times.D+4400 MPa).times.95%, where D is the filament diameter in millimeters. The turnup portion of the single carcass ply 12 in the bead portion of a pneumatic tire is interposed between the bead core 11 and a toe guard 18, and the radially outer edge of each turnup portion being in contact with the main portion of the carcass ply and extending to an end point 0.5 to 4.0 inches (12.7 to 101.6 mm) radially outward of the bead core. The toe guard 18 has a first and second end and each end is disposed directly adjacent to the carcass ply. The first end 18a of the toe guard is located on the axially inner side of the main portion of the carcass ply at a location about 0.4 to 3.5 inches (10 to 89 mm) radially outward of the bead core and the second end 18b is located at a point ranging from substantially the axially outermost point of the bead core 11 to a location about 3.5 inches (89 mm) radially outward of the bead core. The first end 18a and second end 18b of the toe guard is a shorter distance from the bead core than the end point 12a of the turnup portion of the carcass ply.

Pneumatic tire having a single carcass ply reinforced with metallic

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 54,55. The wide groove 54,55 has a circumferentially continuous window 72 extending from the tread base 43 to the radially outer contacting surface 53. The window 72, when viewed in the ground contacting portion of the tread 42, has a shape that is triangular or trapezoidal having two sides 73,74 and a radially outer long base 75. The long base 75 has an axial width of 7% to 20% of the tread width. The wide groove 54,55 has a zig-zag portion 70 extending radially from the tread base 43 in a circumferentially continuous path. The sides 73,74 of the window 72 define the maximum axial extent or amplitude of the zig-zag portion 70 into the wide groove 54,55. Preferably the tread 42 is asymmetrical and non-directional and has two wide grooves 54,55 dividing the plurality of traction elements into three zones 60,61,62, each zone having a different net-to-gross ratio.

Radial pneumatic light truck or automobile tire

Tire sidewall segment

Growing community of inventors

Uniontown, OH, United States of America

Donald W Gilliam