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:
Feb. 26, 1991
Filed:
Sep. 17, 1984
Applicant:
Inventor:
Joseph E Zupanick, Richardson, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B24C / ;
U.S. Cl.
CPC ...
51319 ; 356243 ;
Abstract
In order to provide an optical reflectivity test plate for calibrating and proving a radiometer, which test plate exhibits a near-Lambertian surface, a ceramic coating is bonded to a surface of a rigid substrate, such as a steel plate, and the ceramic coating is thereafter sandblasted with a fine abrasive (preferably 60 grit or finer). If ordinary silica or other relatively soft abrasive is employed in the sandblasting step, it must not have have been previously used. Test procedures for comparing the resultant test plates to a standard BaSO.sub.4 test plate in both the laboratory and outdoors are given.