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:
Mar. 23, 1993
Filed:
Mar. 20, 1991
Applicant:
Inventors:
Don DuPree, Alta Loma, CA (US);
Neil E Mattson, Ontario, CA (US);
Jack E Cunningham, Huntington Beach, CA (US);
Assignee:
Optical Radiation Corporation, Azusa, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205 67 ;
Abstract
A process for forming an infrared absorbing cold shield which comprises anodizing an aluminum mandrel for the cold shield to provide a porous layer of aluminum oxide over the surface of the mandrel. The anodized mandrel is then immersed in an electroforming solution and metal is electrolytically deposited into and over the aluminum oxide layer. The aluminum mandrel is then selectively dissolved, leaving a metal body of the electroformed metal with a layer of infrared absorbing aluminum oxide mechanically anchored to the interior surface of the metal body.