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:
May. 02, 1989
Filed:
Oct. 23, 1987
Yuji Yoshinari, Hojo, JP;
Hitoshi Shiraishi, Matsuyama, JP;
Osamu Tanaka, Matsuyama, JP;
Akiyoshi Kawahito, Matsuyama, JP;
Toshihiro Kayahara, Matsuyama, JP;
Satoru Takeda, Matsuyama, JP;
Takashi Yamada, Matsuyama, JP;
Akinori Kawakami, Matsuyama, JP;
Miura Co., Ltd., Matsuyama, JP;
Abstract
A multi-pipe once-through boiler having at least one row of a plurality of circumferentially arranged pipes on which a plurality of fins are arranged in such a manner that the fins are in contact with the flow of the combustion gas in a substantially parallel maner. Elements are provided for increasing the heat transfer effect, such as slits in the fins, or an inclined arrangement of the fins, or pipes without fins at the region near to the inlet of the combustion gas passageway, are provided. Furthermore, a heat insulating member for decreasing operational noise as well as a cleaner device for blow-cleaning the combustion gas passageway are provided.