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:
Aug. 06, 1991
Filed:
Oct. 03, 1989
Applicant:
Inventors:
Assignee:
Fujimaru Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427258 ; 427270 ; 427287 ; 427379 ;
Abstract
A method of coating an aluminum surface in which the aluminum surface is initially roughened. Enamel containing borosilicate frit is then coated discontinuously on the roughened aluminum surface so that it covers 20 to 60% of the surface and is baked. A first fluorocarbon resin coating is then placed on the enamel and dried. A second fluorocarbon resin coating is then placed over the first coating and baked.