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. 30, 1991
Filed:
Oct. 11, 1989
Mark L Bonko, Hartville, OH (US);
Loran C Lopp, Jr, Wadsworth, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A pneumatic tire for agricultural use has a tread including an inner tread surface and a plurality of spaced tread lugs (170). The tread lug (170) for use with off-the-road or agricultural, has at least one sidewall in cross-section having two different angular inclinations. The sidewall has a first straight portion (202) which extends radially inwardly from an edge (204) of the ground engaging surface (200) of the lug (170) at a first angular inclination (b) with respect to the radial direction. A second straight portion (208) extends radially inwardly at a second angular inclination (c) with respect to the radial direction, while a first concaved curved portion (212) extends from the first straight portion (202) to the second straight portion (208). A second concaved curved portion (214) then extends radially inwardly from the second straight portion (208) to an inner tread surface (151).