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. 26, 1999
Filed:
Apr. 25, 1997
Applicant:
Inventors:
William A Boy, Ellwood City, PA (US);
David M Hoffman, Harmony, PA (US);
Assignee:
The International Metals Reclamation Company, Inc., Ellwood City, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27D / ; B65G / ;
U.S. Cl.
CPC ...
432236 ; 198676 ; 414149 ; 414197 ;
Abstract
A fluid cooled conveying screw adapted for rotary hearth furnaces. A plurality of solid alternating single and double flights are affixed to an outer barrel. The single flights are at least partially cladded to withstand the rigors of the furnace. The double flights extend partially down the barrel.