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:
Jan. 13, 1987
Filed:
Aug. 02, 1985
Applicant:
Inventors:
William A Jacobsen, Burrell Township, Indiana County, PA (US);
Richard L Briggs, Hempfield Township, Westmoreland County, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148133 ; 148154 ; 148155 ;
Abstract
A method of more rapidly and uniformly heating bundles of zirconium alloy tubes in a vacuum annealing furnace utilizes an induction coil to preheat the entire bundle as it is being moved into the hot zone of the furnace.