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:
Oct. 17, 1978
Filed:
Apr. 26, 1977
Applicant:
Inventor:
Bo Vesteras Rappinger, Vasteras, SE;
Assignee:
Asea Aktiebolag, Vesteras, SE;
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
13 34 ; 13 35 ;
Abstract
A method for preheating metallurgical enclosures having refractory linings which after preheating are exposed to the heat of molten metal, is effected by forming an electric open arc producing arc radiation at a location inside of such an enclosure exposing its lining directly to the arc radiation.