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:
Aug. 28, 1984
Filed:
Jul. 30, 1982
Applicant:
Inventor:
Gary L Neiheisel, Cincinnati, OH (US);
Assignee:
Armco Inc., Middletown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 2191 / ; 2191 / ;
Abstract
Apparatus for scanning a continuous wave Nd:YAG laser beam across a moving strip of grain oriented silicon steel having an insulative coating to subdivide the magnetic domains of the strip to improve core loss without damage to the insulative coating. The laser beam is scanned by a multiple-faced rotating mirror and focused onto the strip surface by a flat field lens and cylindrical lens to produce a scan line of narrow width having the required irradiation energy, dwell time and line spacing at the surface of the moving strip.