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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.:

US 5203402 B1

PDFFull Text
Date of Patent:
Apr. 20, 1993

Filed:

Feb. 14, 1992

Heat exchanger

Applicant:
Inventors:

Kunihiko Nishishita, Konan, JP;

Amane Watanabe, Higashi-Matsuyama, JP;

Isamu Kurosawa, Konan, JP;

Yokichi Sato, Tokyo, JP;

Assignees:

Zexel Corporation, Tokyo, JP;

Nihon Parkerizing Co., Ltd., Tokyo, JP;

Attorney:

Frishauf, Holtz, Goodman et al.

Primary Examiner:

Allen J Flanigan

Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165133 ; 1651341 ;
Abstract

A heat exchanger having outer surfaces thereof coated with a hydrophilic coating layer. The hydrophilic coating layer essentially consists of a resin as a base, containing a colloidal silica. In the hydrophilic coating layer, part of silanol groups of the colloidal silica are chemically combined with part of hydroxyl groups of the resin. Due to this chemical combination, the colloidal silica undergoes change in its properties such that it has degraded adsorptivity, making smells less liable to attach to the colloidal silica.

Find Patent Forward Citations

Nishishita, Kunihiko. (1993). Heat exchanger (U.S. Patent No. 5203402). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5203402

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