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. 09, 1988
Filed:
Aug. 13, 1985
Applicant:
Inventor:
Noriaki Sonoda, Sagamihara, JP;
Assignee:
Nihon Radiator Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ; B23K / ;
U.S. Cl.
CPC ...
165133 ; 148 26 ; 228183 ; 228211 ; 228223 ;
Abstract
A heat exchanger core having a tube of aluminum material and heat transfer fins of aluminum material joined to each other with a brazing filler, which has at least part of the surface thereof coated with an inorganic sintered layer incorporating therein a pigment-containing phase of the two complexes of potassium hexafluoroaluminate and potassium tetrafluoroaluminate.