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:
Oct. 31, 2023
Filed:
Feb. 13, 2019
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Ryo Nakamura, Kobe, JP;
Yukihiro Takenaka, Kobe, JP;
Takuro Nozoe, Kobe, JP;
Tatsuo Ino, Kobe, JP;
Atsushi Yukioka, Kobe, JP;
Shuji Yamamoto, Kobe, JP;
Toshinori Tanaka, Kobe, JP;
Hao Zhang, Wuhu, CN;
Wei Fang, Wuhu, CN;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
An exhaust heat recovery boiler includes: a duct casing in which exhaust gas flows; a tubular extending portion extending upward from the duct casing; a heat exchanger tube located in the duct casing; a hammering rod connected to the heat exchanger tube in the duct casing and passing through an inside of the extending portion, the hammering rod including an upper part projecting to an outside of the extending portion; and an annular sleeve attached to the upper part of the hammering rod through a packing. The extending portion includes an upper flat surface which is located at an upper end of the extending portion, realizes a seal between the upper flat surface and a lower surface of the sleeve, and is annular and flat.