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. 05, 1999
Filed:
Jun. 10, 1996
John A Robertson, Chillicothe, OH (US);
Infosight Corp., Chillicothe, OH (US);
Abstract
One aspect of the present invention is a method for marking metal or other product for its identification. This method includes the steps of: (a) forming on said product or on a tag to be attached to said product a layer of coating containing an additive that is darkenable under the action of a CO.sub.2 laser beam to form product identification indicia; (b) providing a raster-scanning infrared laser beam emitting CO.sub.2 laser that raster-scans in the Y-axis; (c) effecting impingement of said laser beam from said laser onto said coating layer, wherein one or more of said laser beam or said coating layer moves in the X-axis for said laser beam to form said product identification indicia from said additive that is darkened by said laser beam; and (d) if said coating layer was applied to a tag, attaching said tag to said product. The zone can be an area on the metal product that has been coated with a layer of the coating or can be a metal tag that has been coated with a layer of the coating. Another aspect of the present invention is the laser marked identification tag disclosed herein.