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:
Jul. 31, 2001
Filed:
Jan. 19, 2000
Applicant:
Inventors:
Masayoshi Shinhama, Tokyo, JP;
Junichi Hiyama, Tokyo, JP;
Hiroyuki Tamura, Tokyo, JP;
Shinya Kaneko, Tokyo, JP;
Enichi Ishiwa, Tokyo, JP;
Yoshihiro Sasaki, Tokyo, JP;
Yoshiaki Koga, Tokyo, JP;
Assignee:
Calsonic Kansei Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 1/06 ;
U.S. Cl.
CPC ...
F28F 1/06 ;
Abstract
The height of a bead opposing a joint where side edges of a plate are to be joined is set to be smaller than the height of a bead which does not oppose the joint by the thickness of the plate. Further, lands are provided between the beads and protrude from either the tube surface or the tube surface toward the inside of the main tube unit, and flow gaps are formed through which the heat-exchange medium flows over the lands.