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. 13, 2005
Filed:
Dec. 11, 2003
Applicants:
John S. Tingey, Rathdrum, ID (US);
David A. Salee, Spokane, WA (US);
Wade Lee Bowles, Spokane, WA (US);
Inventors:
John S. Tingey, Rathdrum, ID (US);
David A. Salee, Spokane, WA (US);
Wade Lee Bowles, Spokane, WA (US);
Assignee:
Novelis Inc., Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D001/00 ; B22D035/00 ; B22D041/00 ;
U.S. Cl.
CPC ...
Abstract
A trough is described for carrying molten metal, comprising an outer shell defined by a bottom wall and two side walls, an insulating layer filling the outer shell and a conductive U-shaped refractory trough body for carrying molten metal, the trough body being embedded in the insulating layer. At least one heating element is positioned in the insulating layer, adjacent to but spaced apart from the trough body, to provide an air gap between the heating element and the trough body.