The Goodyear & Tire Rubber Company

Klaus Beer

Thomas Reed Oare

Samuel P Landers

Dennis Alan Lundell

Amit Prakash

Frederick Forbes Vannan, Jr

Gary Edwin Tubb

Kenneth Dean Conger

John Ronald Abbott

Henry David Broyles

John Janes Beck, Jr

Antonnis G Maathuis

Jurgen Spielmann

John Patrick Roman

Michael L Becker

James Dale Stokes

Ralph Damon Ring

Daniel Ray Downing

Gary Robert Burg

James Michael Hart

William Frank Dunn

Mark Daniel Banas

Thomas Alan Murray

Thomas H Wells

Raymond Patrick Eckman

Gary William Richards

Thomas Alan Brown

Theo Meijer

A tire has a composite ply . The composite ply has a primary ply A reinforced with parallel inextensible cords and a pair of ply extensions B having synthetic cords. The method of manufacturing the tire is described. The tire can be made as a runflat type tire.

Tire with composite ply structure

Method of building tire with composite ply structure

A conveyor assembly and method for conveying and storing a strip material in a conveyor system that is subject to changes in length of the strip material due to intermittent operation includes an upper conveyor (,), an adjustable substantially horizontal center conveyor (,) for receiving the strip material (,) from the upper conveyor, and a lower conveyor (,) for receiving the associated strip material from the center conveyor. A computer (,) controls the movement and rotation of the center conveyor, and loop detecting apparatus on the center conveyor may also detect a loop (,) in the strip material carried by the center conveyor and thereby detecting changes in length of the strip material not predetermined by the computer. A servomechanism (,) activated by signals from the computer or the loop detecting apparatus moves the center conveyor in a substantially horizontal direction.

Adjustable length conveyor system

Method and apparatus for simultaneously assembling a plurality of tires

An apparatus for cutting an elongated body of elastomeric material includes a tensioned wire which is oscillated in a generally up and down motion while traversing through the elastomeric material. The wire acts as a cutting blade and prepares the cut surface of the elastomeric material to improve splices. The wire is suspended between a pair of pivotally mounted arms so that the wire oscillates as the arms are rocked by an eccentric mounted to a rotating shaft. The cutter wire passes through the body of elastomeric material at an angle relative to the plane in which the body of elastomeric material lies. The body of elastomeric material is secured in place by clamp segments which conform themselves to the cross-sectional shape of the body. The cutter wire is traversed through the elastomeric material on a cutter frame which is moved by a ball screw driven by a variable speed electric motor.

Apparatus for cutting of elastomeric materials

Tire components are assembled on a tire building drum by laying a first liner on a surface of the drum, positioning first sidewall inserts below the cylindrical surface of the drum and around the drum at insert locations spaced from each end of the drum, laying a first carcass ply around the drum, positioning second inserts over the first ply at the insert locations, laying a second carcass over the first ply and the second inserts, positioning beads at each end of the drum, expanding the drum to increase the diameter of the cylindrical surface of the drum and provide shoulders at each end of the drum, turning edges of the first ply and the second ply over each of the beads, positioning a belt and tread assembly around the second ply, and contracting the drum for removal of the assembled tire components from the drum. The inserts are positioned in grooves extending radially inwardly in the outer surface of the building drum. The grooves enable thick inserts to be built into the tire sidewall while still maintaining a generally flat outer surface of the tire while on the building drum, thereby decreasing the possibility of air trapped between components of the uncured tire.

Contoured tire building drum and method of building an extended mobility

A pneumatic tire (10, 40) having a belt reinforcing structure (24) located between the carcass (12) and the tread portion (20) is reinforced with an overlay belt (30) located between the belt reinforcing structure (24) and the tread (20). The overlay belt (30) has a plurality of parallel cords (32) oriented at an angle with respect to the equatorial plane (EP) of the tire. The angle of the cords (32) is between 9.degree. to 24.degree. degrees. The overlay can be used by itself or in conjunction with a pair of belt reinforcing strips (42) located radially outwardly along both axial edges (46, 48) of one of the belts (26, 28) of the belt reinforcing structure (24). The belt reinforcing strips (42) also contain a plurality of cords (50) oriented at an angle of from 9.degree. to 24.degree. with respect to the equatorial plane of the tires.

Angled overlay belt for tires

A method of making a belt overlay structure for a pneumatic tire is provided. In the method, a belt structure is wrapped circumferentially around a cylinder which is secured to a rotatable shaft, and a ribbon comprising an elastomeric substance containing side-by-side textile cords extending longitudinally in the ribbon is provided on a let-off means. A first end of the ribbon is adhered to the outermost belt ply in close proximity to the axial center line of the belt structure, and the cylinder is rotated while ribbon is supplied from the let-off device. The let-off device first traverses to a first lateral edge of the belt structure where the lateral movement of the let-off means stops while the cylinder continues to rotate and the let-off means continues to supply ribbon. The let-off means is then caused to supply more ribbon while traversing laterally to a second lateral edge of the belt structure and stopping at the second lateral edge while the cylinder continues to rotate and the let-off device continues to supply ribbon. The let-off means then traverses to the axial centerline of the belt structure, and the cylinder and the let-off means are then stopped, the ribbon cut and a second end of the ribbon is adhered to the underlying ribbon.

Method of making a belt overlay for pneumatic tires

A speed rated tire (10) is provided with an overlay structure (20) disposed radially outwardly of the belt structure (17). The overlay structure comprises a single ribbon (22) of side-by-side textile cords spirally wrapped about the belt structure such that both ends of the ribbon are in close proximity to the equatorial plane (EP) of the tire, while the axial width of the overlay structure is at least equal to that of the belt structure. The number of radial layers of cords in the overlay structure being greater at the axial edges of the belt structure than the average number of radial layers of cords in the remainder of the overlay structure. A method of manufacturing such an overlay structure is also disclosed.

Belt overlay structure for pneumatic tires comprising a single ribbon

A pneumatic tire (1) comprises a radial carcass (2), a tread portion (7) and a belt reinforcing structure (8) extending circumferentially around the carcass (2). Disposed radially outwardly of the belt reinforcing structure (8) is a textile reinforced overlay structure (9) having substantially circumferentially extending cords (10). The overlay structure (9) is composed of a series of helical convolutions of a textile ribbon (11) whereby adjacent helical convolutions of the textile ribbon (11) overlap. There is further disclosed a method of applying multiple layers of a single continuous helically wound textile ribbon (11) in a single continuous operation from one axial side to the other axial side of the belt reinforcing structure (8).

Pneumatic tire and method for making same

A method of reducing the lateral force variation exerted by a rotating pneumatic tire on its supporting surface, which method comprises mounting the tire on a rotatable rim, inflating the tire to a preselected pressure, urging the tire against a load roll with a preselected force, rotating the tire to determine the lateral force variation, grinding the axially outer rib of the tire on the side of the tire in the direction of the maximum lateral force at the point of the maximum lateral force and grinding the other axially outer rib at the point of maximum variation from the maximum lateral force.

Lateral force variation correction of pneumatic tires

Growing community of inventors

Stow, OH, United States of America

Klaus Beer