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:
Jan. 19, 1982
Filed:
Dec. 05, 1980
Andrew R Clayton, Salisbury, NC (US);
Brad Ragan, Inc., Spruce Pine, NC (US);
Abstract
An apparatus and method for grooving tires which is particularly useful for renewing previously used over-the-road tires and which removes a portion of a layer of rubber applied to a tread face of a carcass so as to form on the tread face a predetermined grooved tread design. Relative motion between a heated knife and a tire carcass is controlled and coordinated in such a manner as to form a particular selected tread pattern, while one of a plurality of knives of varying configurations is selected to form particular portions of the grooved design. As described more fully hereinafter, a programmable memory preferably in the form of a digital, electronic central processor unit controls the operation of components of the apparatus and is programmed to follow particular functional sequences.