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:
Apr. 16, 1985
Filed:
Aug. 17, 1982
Keizo Konoki, Takaidohigashi, JP;
Takanobu Shinohara, Chiba, JP;
Ikuyoshi Kochi, Chiba, JP;
Keiichi Shibata, Mobara, JP;
Hisakatsu Nishihara, Hirakata, JP;
Toshiaki Morichika, Hirakata, JP;
Junichi Sugitani, Hirakata, JP;
Koji Tsuchida, Hirakata, JP;
Kubota Ltd., Osaka, JP;
Toyo Engineering Corporation, Tokyo, JP;
Abstract
A reactor tube for thermally cracking or reforming hydrocarbons comprising a tube member made of Fe-Cr-Ni heat resisting material and a covering layer of self-fluxing alloy fusing to the inner surface of the tube member, the covering layer made of heat resisting material free from Ni or with a low Ni content. The tube member is manufactured by centrifugal casting, and the covering layer is formed by applying the self-fluxing alloy powder by scattering with or without thermit agent or spraying the alloy to the inner surface of the tube member.