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. 02, 1976
Filed:
May. 13, 1974
Arthur Larry Grow, Versailles, OH (US);
Precision Tool & Machine Co., New Bremen, OH (US);
Abstract
A feed roll, especially for feeding strip stock, and a method of imparting a roughened texture to the surface thereof, in which the roll is formed of hardened steel and the peripheral surface which engages and feeds the strip stock is treated by electrical discharge machining to impart a roughness to the surface. The roughness is in the form of a textured surface often having a finish ranging from about 175 microinches RMS to about 325 microinches RMS and is preferably within the range of about 250 microinches RMS for many applications. Requirements also exist for rougher and smoother feed roll finishes that can be controllably produced by this process.