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:
Jun. 26, 1990
Filed:
Aug. 05, 1988
Hideaki Takahashi, Sendai, JP;
Tetsuo Shoji, Sendai, JP;
Katsuto Nakatsuka, Sendai, JP;
Hiroyuki Abe, Sendai, JP;
Tohoku University, Sendai, JP;
Abstract
An underground chemical reactor having a closed loop reactor which includes at least a reaction component inlet tube and a reaction product outlet tube and a casing pipe consisting of a double or triple tube and the circulating system for a reaction component such as raw material sludge and a direct chemical reaction system for the reaction component with the deep underground high temperature water of a hot water source formed by a natural hot water source of an artificial crushed zone at a depth of more than 1,000 m, thereby an oxide magnetic material such as soft ferrite, hard ferrite, each kind of ceramics or heat-resisting materials such as xonotlite, dielectric materials, clay materials may be made in the underground chemical reactor.