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. 04, 2006
Filed:
Nov. 30, 2004
Toyoaki Matsuzaki, Shizuoka-Ken, JP;
Toyoaki Matsuzaki, Shizuoka-Ken, JP;
Xenesys, Inc., , JP;
Abstract
A heat transfer member for a heat exchanger, is press-formed of a metallic thin sheet material into a prescribed shape by means of molds of a press forming device so that the heat transfer member has on at least one portion thereof a heat transfer face having opposite surfaces, which are to be brought into contact with heat exchange fluids, respectively. The heat transfer face comprises at least one set of irregularity patterns arranged in a row. Each of the at least one set of irregularity pattern units comprises (i) a central pattern portion having a plurality of recesses or projections provided with a prescribed pitch, (ii) a pair of heat exchanging irregularity pattern portions provided on opposite sides of the central pattern portion so as to be symmetrical with respect to the central pattern portion and (iii) at least one boundary pattern portion provided on at least one of respective outer sides of the pair of heat exchanging irregularity pattern portions so as to be adjacent to the respective outer sides thereof. The boundary pattern portion has a prescribed width and a plurality of recesses or projections provided with a same pitch as the plurality of recesses or projections of the central pattern portion so as to be in parallel therewith.