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:
Dec. 08, 1998
Filed:
Aug. 29, 1996
Tokuaki Hatta, Souka, JP;
Hiromi Nakashima, Yokohama, JP;
Shigeru Imamura, Kisarazu, JP;
Arito Mizobe, Kitakyushu, JP;
Shigeki Ishimatsu, Kitakyushu, JP;
Akihiro Tachikawa, Kisarazu, JP;
Mitsubishi Jukogyo Kabushiki, Tokyo, JP;
Krosaki Corporation, Kitakyushu, JP;
Abstract
A refractory protective block protects heat exchange means connecting tubes to fins. The refractory protective block has an inside complementary shape corresponding to the surface shape of the heat exchange means and the refractory protective block is provided with recesses into which projections formed on the tubes are fitted and received. A pair of projections formed on the two adjacent tubes in the heat exchange means are arranged so as to confront each other. The refractory protective block has a high durability which does not break even when heat exchange means expand more than the refractory block at the time of the repetition of heating and cooling and which enable the dispersion of strain at the time of the repetition of expansion and contraction.