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:
Dec. 11, 1990
Filed:
Apr. 10, 1989
Applicant:
Inventors:
Lyman T Moore, Niagara Falls, NY (US);
Mark D Travers, Sanborn, NY (US);
Assignee:
Great Lakes Carbon Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
373 93 ;
Abstract
A safety flow stopper in a water-cooled electric arc furnace electrode comprises a bob 16 held in place above a valve seat 12 by a release pin 17 resting on the bottom of the cavity in the nipple 20. If the electrode fails the release pin will no longer support the bob which will seat in the valve seat, shutting off the coolant flow and averting an explosion in the furnace.