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:
Nov. 26, 1996
Filed:
Feb. 04, 1994
Applicant:
Inventors:
Daisuke Hisajima, Ibaraki-ken, JP;
Akira Nishiguchi, Ushiku, JP;
Tomihisa Ohuchi, Tsukuba, JP;
Saburo Tsukada, Tsuchiura, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ; F28F / ;
U.S. Cl.
CPC ...
165133 ; 1651091 ; 165179 ; 165D / ; 165D / ;
Abstract
Heat exchanger has a first surface on which a first fluid flows and a second surface on which a second fluid flows, at least one of the first and second surfaces has at least two projections and a bottom therebetween, and an imaginary line on the bottom along a shortest distance between the projections adjacent to each other is prevented from extending along an imaginary face substantially parallel to a main flow direction of one of the first and second fluids which flows over the bottom.