The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1999
Filed:
May. 02, 1995
Patrick Lurois, Cebazat, FR;
Compagnie Generale Des Establissements, Michelin, FR;
Abstract
In order to improve the wear of the trailing edges of the relief elements of a tread (1) for 'heavy vehicle' tires, which elements are defined in the axial direction by circumferential grooves and in the circumferential direction by incisions (30) of a width other than zero and at most equal to 3 mm, said incisions (30) are inclined with respect to the normal (P) to the surface of the tread by an angle .alpha. of between 5.degree. and 25.degree. so that the resultant force (F.sub.F, F.sub.M) exerted by the ground on the tread tends to straighten the incisions (30) towards a zero inclination. The inclination of the incisions (30) is particularly advantageous in the case of a tread (1) provided with 'wide' circumferential grooves having a step (4). Application for steering, load-bearing or driving tires.