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:
Aug. 08, 2000
Filed:
Jun. 05, 1998
Shizuo Tsuchiya, Gifu, JP;
Akira Isaji, deceased, late of Nishio, JP;
DENSO Corporation, Kariya, JP;
Abstract
In a heat exchanger having a coaxial pipe, the coaxial pipe is formed by integrating an inner pipe, an outer pipe and connecting walls together by an extruding or a drawing forming process. A header of a first connecting member is connected to a removed portion formed by removing a part of the outer pipe at an end portion of the coaxial pipe. A second connecting member is welded to the inner pipe at a more longitudinal end side of the inner pipe than the header. Thus, the coaxial pipe can be bent like a coil for downsizing the heat exchanger without reducing the heat-exchanging ability of the heat exchanger, and the total cost of manufacturing the heat exchanger can be reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile