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. 06, 1990
Filed:
Apr. 04, 1988
Applicant:
Inventors:
Syoji Shiga, Nikko, JP;
Akira Matsuda, Nikko, JP;
Nobuyuki Shibata, Nikko, JP;
Kiichi Akasaka, Nikko, JP;
Assignees:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228183 ; 228199 ; 228202 ; 228219 ; 228220 ;
Abstract
An improved copper radiator for motor cars comprising a plurality of tubes adapted for the flow of a heat-exchanging medium therethrough, fins bonded directly with solder to said tubes to form a copper core and wherein said core is bonded with solder to at least one seat plate, the improvement in that the surface of the fins of said copper radiator has an oxidized layer of a thickness of not more than 1200 .ANG..