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:
Aug. 05, 2003
Filed:
Aug. 30, 2000
Applicant:
Inventor:
James P. Kleckner, Akron, OH (US);
Assignee:
Bridgestone/Firestone Research, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 1/300 ; B60B 1/111 ; B60B / ; B60B / ; B60B / ;
U.S. Cl.
CPC ...
B23P 1/300 ; B60B 1/111 ; B60B / ; B60B / ; B60B / ;
Abstract
A tread pattern having at least one circumferential groove and transverse grooves extending from the circumferential groove defining tread blocks there between. The tread blocks include sidewalls limiting the longitudinal groove laterally and projections projecting from the sidewalls into the circumferential groove. The width of each of the projections is less than 10% the circumferential dimension of the respective tread block. To convert a mold having elements that produce tread blocks with substantially flat sidewalls into a mold that produces the tread pattern, channels are machines into the sidewalls of the mold elements.