Douglas E Swift

US Patent:

6508284, Jan 21, 2003

Filed:

Oct 27, 2000

Appl. No.:

09/674568

Inventors:

Douglas Ashley Swift - Hudson OH
John Gregory Stucker - Stow OH
Richard Barkley Campbell - Massillon OH
Charles Kenneth Schmalix - Canal Fulton OH
Joel Joseph Lazeration - Akron OH

Assignee:

The Goodyear Tire Rubber Company - Akron OH

International Classification:

B60C 306

US Classification:

152456, 1522098, 152454, 152455

Abstract:

The loss of tire contact patch area along the tires inside shoulder, relative to an oval race course, which occurs during chassis roll and lateral deflection, is reduced by providing an asymmetrical molded tire. The tires are defined by an asymmetrical outer tread profile and the tires are mounted on the rear axle of the race vehicle such that the axially outer portion of the asymmetrical tread region of each tire, relative to the race course, has a greater shoulder drop, wherein the shoulder drop is the difference between the maximum radial diameter of the tread measured on the outer tread contour and the diameter of the tread at the tread edge, than the opposing tire shoulder.

US Patent:

20060124221, Jun 15, 2006

Filed:

Dec 13, 2004

Appl. No.:

11/010520

Inventors:

Gary Richards - Clinton OH, US
Douglas Swift - Hudson OH, US
Stephanie Brown - Akron OH, US

International Classification:

B60C 9/08

US Classification:

152560000, 156133000

Abstract:

An improved dual tire assembly method for free rolling applications. Each tire is constructed having the tire carcass slightly angled away from the conventional ninety degree configuration to minimize torque windup caused by interaction between the individual tires in the dual assembly. Such a deviation from ninety degrees is made relatively small enough to avoid experiencing a significant rolling resistance penalty in each tire yet large enough so that the torque windup effect of one tire on the other tire is minimized. A method of reducing torque windup in a dual tire assembly is achieved comprising the steps: configuring both tires in a dual assembly to provide a carcass angled slightly from 80 to 100 degrees; mounting such tires in proximal relationship in a dual tire assembly on a common axle; operating both tires in a free rolling mode of operation; and using the angled carcass of each tire to minimize the effect of torque windup imposed by the opposite tire.

US Patent:

54254060, Jun 20, 1995

Filed:

Mar 11, 1993

Appl. No.:

8/029840

Inventors:

Douglas A. Swift - Hudson OH
John J. Taube - Tallmadge OH

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

International Classification:

B60C10100
B60C11100

US Classification:

152209A

Abstract:

An asymmetric tire tread is divided circumferentially into first, second, and third zones. The edge between the second and third zone in the tire is in the center of an aquachannel.

US Patent:

53299809, Jul 19, 1994

Filed:

Mar 11, 1993

Appl. No.:

8/029839

Inventors:

Douglas A. Swift - Hudson OH
John J. Taube - Tallmadge OH

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

International Classification:

B60C 1111

US Classification:

52209R

Abstract:

The tire treads are divided circumferentially into first, second, and third zones. The edge between each of the three zones in the tire treads are in the center of an aquachannel. The tires have a tread groove pattern that is asymmetric in character.

US Patent:

53238249, Jun 28, 1994

Filed:

Mar 11, 1993

Appl. No.:

8/029841

Inventors:

Douglas A. Swift - Hudson OH
John J. Taube - Tallmadge OH

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

International Classification:

B60C 1103

US Classification:

152209A

Abstract:

An improved tire/vehicle system for an automotive vehicle has two pneumatic front tires and two pneumatic rear tires. The rear tire treads and the front tire treads and are each divided circumferentially into first, second, and third zones. The edge between the second and third zone in each front tire is in the center of an aquachannel. The edge between each of the three zones in the rear tires are in the center of an aquachannel. Both the front and rear tires have a tread groove pattern that is asymmetric in character.

US Patent:

D3551547, Feb 7, 1995

Filed:

Mar 11, 1993

Appl. No.:

D/005768

Inventors:

Warren L. Croyle - Wadsworth OH
Douglas A. Swift - Hudson OH
John J. Taube - Tallmadge OH

Assignee:

The Goodyear Tire & Rubber Company - Akron OH

US Classification:

D12147