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:
Sep. 18, 1990
Filed:
Mar. 15, 1989
Applicant:
Inventors:
Masaaki Mizoguchi, Sakai, JP;
Susumu Inoue, Sakai, JP;
Tatsuo Otsuka, Sakai, JP;
Eizo Isoyama, Sakai, JP;
Assignee:
Showa Aluminum Corporation, Sakai, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165133 ; 1651341 ;
Abstract
The fins of an aluminum heat exchanger are treated with a coating composition comprising an alkali silicate, an inorganic hardening agent and a water-soluble organic high-molecular-weight compound, whereby a hydrophilic coating is formed over the surfaces of the fins.