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:
May. 08, 1990
Filed:
Mar. 06, 1989
Applicant:
Inventors:
Philip Beckley, Bettws Hill, GB;
David Snell, Six Bells, GB;
Assignee:
British Steel Plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; H01F / ;
U.S. Cl.
CPC ...
219 75 ; 148111 ; 2191 / ;
Abstract
A method of forming continuous or spot-sequenced lines across the surface of grain oriented steel strip by spark discharge from electrodes closely spaced from said strip, characterized in that the atmosphere through which the discharge is effected is inert. Preferably the inert atmosphere is nitrogen but other gases, e.g. argon may readily be employed.