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:
May. 03, 2011
Filed:
Aug. 06, 2007
Toshihiko Obayashi, Hyogo, JP;
Satoshi Kawaguchi, Hyogo, JP;
Hidefumi Koda, Hyogo, JP;
Kohei Yamada, Hyogo, JP;
Toshihiko Obayashi, Hyogo, JP;
Satoshi Kawaguchi, Hyogo, JP;
Hidefumi Koda, Hyogo, JP;
Kohei Yamada, Hyogo, JP;
Noritz Corporation, Hyogo, JP;
Abstract
A plurality of first joint tubesconnected to a plurality of heat transfer tubesand a plurality of second joint tubesprovided at a headerB are connected to each other at joints J. The joints J include at least one slide joint Ja at which respective ends of the first and the second joint tubesandare fitted to each other slidably in a predetermined direction. The joints J further include at least one butt joint Jb at which an end of either one of the first and the second joint tubes butts against a sealing surface provided at the other one of the first and the second joint tubes. The butt position of the sealing surface and the end is variable in a direction crossing the predetermined direction. With this arrangement, the influence of an error in the arrangement of the first and the second joint tubesandis reduced, so that the headerB is properly connected to the heat transfer tubesdetachably, and the maintenance of the heat exchanger HE is facilitated.