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. 26, 2008
Filed:
Sep. 22, 2003
Tsuyoshi Tokuda, Hikone, JP;
Yoshitaka Murata, Hikone, JP;
Yoshitaka Hayamizu, Kadoma, JP;
Kazuhisa Morishita, Yokaichi, JP;
Yasuhiro Yuasa, Yokaichi, JP;
Norihiro Tsuchiya, Omihachiman, JP;
Tsuyoshi Tokuda, Hikone, JP;
Yoshitaka Murata, Hikone, JP;
Yoshitaka Hayamizu, Kadoma, JP;
Kazuhisa Morishita, Yokaichi, JP;
Yasuhiro Yuasa, Yokaichi, JP;
Norihiro Tsuchiya, Omihachiman, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An electric blower includes an electric motor including a stator and a rotor. The impeller is rotated by the electric motor. An air guide having a plurality of guide blades is disposed around the impeller, and a casing encloses the impeller and the air guide. The casing is provided with a number of exhaust openings through which a part of an air stream suctioned by the impeller is discharged, and a circumferential length of each of the exhaust openings is substantially identical to a circumferential distance between outer peripheral ends of adjacent guide blades. Alternatively, the circumferential length of each of the exhaust openings may be less or greater than the circumferential distance between outer peripheral ends of adjacent guide blades.