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:
Apr. 02, 2002
Filed:
Nov. 30, 1999
Applicant:
Inventor:
David J. Hanton, Vienna, OH (US);
Assignee:
Ajax Magnethermic Corporation, Warren, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 6/36 ;
U.S. Cl.
CPC ...
H05B 6/36 ;
Abstract
An induction heating coil assembly including modular cast refractory blocks ( ) encasing copper turns ( ). The blocks are configured so that the segmenting between blocks occurs at locations where refractory cracks have been prone to occur. The turns, and additional support rods ( ), are placed in tension and fastened against the end walls of the refractory blocks to place the blocks under compression to the extent that normal gravitational forces tending to place the refractory blocks in tension are overcome by the compressive forces of the turns and rods.