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:
Dec. 28, 1999
Filed:
Feb. 20, 1997
John A Robertson, Chillicothe, OH (US);
Edward S O'Neal, Rockbridge, OH (US);
Infosight Corporation, Chillicothe, OH (US);
Abstract
The present invention is directed to a system for marking objects for their identification. The inventive system includes a laser that emits a select band of radiation and a coating system for application to an object or workpiece to be marked. The coating system is composed of two contrasting coats of paint, a topcoat and a basecoat, which have been coated sequentially on the workpiece. The topcoat, while still wet, can be ablated by the beam of said laser while the basecoat, while wet, dry or tacky, is refractory to the beam of said laser. The laser, thus, can generate alphanumeric and graphic characters (product identification indicia) on the workpiece by its beam being directed onto the coating system for ablating the topcoat to reveal the basecoat to generate the characters by dint of the visible contrast between the two coats of paint.