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:
Jan. 20, 2026
Filed:
Aug. 17, 2023
Noritz Corporation, Hyogo, JP;
Kyohei Ogawa, Hyogo, JP;
NORITZ CORPORATION, Hyogo, JP;
Abstract
A premixing device includes first and second fuel gas outlets through which fuel gas is capable of flowing out to first and second flow paths partitioned by a partition wall part of a premixing flow path, using a negative pressure generated by an air flow in the first and second flow paths. The premixing device further includes: a first blade part that is provided in the first flow path and includes the first fuel gas outlet provided facing a downstream side in an air flow direction; a flapper that has an opening degree changing according to an air flow rate and opens and closes both the first flow path and the first fuel gas outlet; and a pair of fin parts that protrude at the flapper to sandwich the first fuel gas outlet and the first blade part, and form a gap with respect to the first blade part.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile