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:
Apr. 16, 2013
Filed:
Nov. 24, 2009
Yoshinori Kanda, Takasago, JP;
Takeshi Wakada, Kobe, JP;
Toshio Watanabe, Akashi, JP;
Takashi Akiyama, Kobe, JP;
Takashi Wakatake, Akashi, JP;
Yoshinori Kanda, Takasago, JP;
Takeshi Wakada, Kobe, JP;
Toshio Watanabe, Akashi, JP;
Takashi Akiyama, Kobe, JP;
Takashi Wakatake, Akashi, JP;
Noritz Corporation, Hyogo, JP;
Abstract
A combustion apparatusincludes a plurality of burners, a plurality of fuel supply channels, a blower, an air supply passage, and a pressure regulator. The burnersare divided into a plurality of burner groups. The pressure regulatoris branched at a portion located immediately after a gas outletat downstream of the regulatorand connected to the respective fuel supply channels, so as to regulate gas supplied at a primary pressure to gas at a secondary pressure in response to a predetermined signal pressure sensed from one selected from a part of the air supply passageand the blowerand to discharge the regulated gas through the pressure regulator. The fuel supply channelseach are configured to perform fuel supply to the respective burner groupsand are provided with a switching valvefor either shutting off or reducing the fuel supply to at least a part of the burner groups