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:
Sep. 09, 1997
Filed:
Mar. 15, 1995
Applicant:
Inventors:
Tomohiko Miyamoto, Takahagi, JP;
Yasuo Yoshii, Naka-machi, JP;
Tooru Inada, Hitachi, JP;
Jinichi Tomuro, Hitachinaka, JP;
Nobuyuki Hokari, Hitachinaka, JP;
Katsuya Oki, Hiroshima, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Babcock-Hitachi Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23D / ;
U.S. Cl.
CPC ...
110347 ; 60 39464 ; 60 3902 ; 122 / ; 110188 ; 110245 ; 110234 ;
Abstract
A method of and apparatus for detecting an abnormality of a fluidized bed boiler is characterized in that an abnormality of the fluidized bed boiler is detected on the basis of a physical quantity related to a condition change of a gas existing in a space defined by a pressure vessel and the fluidized bed boiler accommodated within the pressure vessel.