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:
Jul. 18, 1978
Filed:
Jun. 30, 1976
Applicant:
Inventors:
Hans Gunther Heine, Little Silver, NJ (US);
Otto Hochstrasser, North Brunswick, NJ (US);
Fritz Hegewaldt, Herdecke, DE;
Assignee:
Brown Boveri Corporation, North Brunswick, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
13-1 ; 13 25 ;
Abstract
A controlled atmosphere furnace having radiant heating tubes, through which hot gases from a fuel burner are passed, is converted to electrical operation by removing the fuel burner and exhaust connections from the heating tubes and replacing these with electrical connector extensions connected to an electrical power source so that electrical current is driven longitudinally through the heating tube walls and converted therein to heat which is radiated into the furnace enclosure.