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:
Jul. 15, 2025
Filed:
Oct. 21, 2024
Nidec Corporation, Kyoto, JP;
Shinji Takemoto, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A blower includes an impeller and a housing. The impeller is rotatable about a central axis. The housing accommodates the impeller. The housing includes a cylindrical wall portion extending along the central axis and covers the impeller from radially outside and including groove portions recessed in a radial direction from an inner circumferential surface of the cylindrical wall portion and arranged in a circumferential direction. A circumferential width of each of the groove portions decreases from an end portion on an upstream side in an air blowing direction of the impeller toward an end portion on a downstream side in the air blowing direction.