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:
Mar. 28, 1989
Filed:
Aug. 05, 1987
Manfred Gerresheim, Wurselen, DE;
Jurgen Sommer, Aachen, DE;
Dionysius J Poque, Aachen, DE;
Hans-Jugen Vogler, Herzogenrath, DE;
Uniroyal Englebert Reifen GmbH, Aachen, DE;
Abstract
A tread surface profile including a three-part configuration. A circumferentially extending, centrally disposed, linear or zigzagged rib has connected on both sides thereof a plurality of central blocks that are separated from the rib by shallow and narrow venting grooves. On both sides of the rib, pluralities of profiled blocks that extend from a tire shoulder toward the rib, with the profiled blocks being separated from the central blocks of the latter by longitudinal, circumferentially extending channels, and being separated from one another by lateral channels. The profiled blocks and the central blocks are arranged in S-shaped configurations that extend over the width of the tread surface in a diagonal fashion. The shoulder end of each profiled block is oriented axially at an angle of from 90.degree. to 80.degree. relative to the central tire plane, and each rib end of the central blocks is oriented circumferentially at an angle of from 35.degree. to 55.degree. relative to the central tire plane. The lateral channels are connected to one of the longitudinal channels, with at least a portion of the latter being circumferentially oriented at an angle of from 0.degree. to 65.degree.. The profile portion formed by the rib and central blocks extends over 25 to 40% of the of tread surface width. The profiled and central blocks are provided with sipes that extend parallel to the lateral channels and are connected to at least one of the longitudinal channels and venting grooves.