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:
Aug. 20, 2013
Filed:
Jan. 24, 2008
Kenji Yamamoto, Hitachinaka, JP;
Masato Handa, Mito, JP;
Teruyuki Okazaki, Hitachiohta, JP;
Kazumi Yasuda, Hitachi, JP;
Osamu Ito, Hitachiohta, JP;
Kenji Yamamoto, Hitachinaka, JP;
Masato Handa, Mito, JP;
Teruyuki Okazaki, Hitachiohta, JP;
Kazumi Yasuda, Hitachi, JP;
Osamu Ito, Hitachiohta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is a coal boiler that makes it possible to reduce the height of the boiler and shorten the period of construction. The coal boiler includes a first furnace in which a combustion gas generated by burning coal and air ascends; a second furnace in which the combustion gas supplied from the first furnace flows downward; and a heat recovery area in which the combustion gas supplied from the second furnace flows upward.