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. 25, 2015
Filed:
Dec. 07, 2012
Noritz Corporation, Hyogo, JP;
Keigo Fukunishi, Hyogo, JP;
Takeshi Wakada, Hyogo, JP;
Toshio Watanabe, Hyogo, JP;
Takashi Akiyama, Hyogo, JP;
Yasutaka Kuriyama, Hyogo, JP;
Itsuo Nagai, Hyogo, JP;
Norihide Wada, Hyogo, JP;
Ryosuke Umakoshi, Hyogo, JP;
NORITZ CORPORATION, Hyogo, JP;
Abstract
In a rich-lean combustion burner, each of outer rich-side flame holes disposed on both outer sides is supplied with rich-side mixture in the same amount and mixing state as the others. A lower end part of a central rich-side burner part is projected into an interior of a tubular part to which a rich-side mixture is introduced. First communication holes are opened, respectively, in both side walls of the lower end part. A second and a third communication holes in fluid communication with an outer rich-side burner part are opened in a tubular part. The second and the third communication holes are oriented so as to face each other without any obstruction, other than a space, therebetween. Furthermore, a pocket part which is a space part adapted to collect and accumulate dust particles is formed on the downstream side up to a closed end.