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:
Nov. 02, 2010
Filed:
Jun. 05, 2007
Yuji Yabuuchi, Kyoto, JP;
Yuji Yabuuchi, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
An impeller includes an impeller cup and a plurality of blades. The impeller cup is hollow and generally cylindrical and has a lid. A housing is formed to enclose the impeller from the outside thereof. The housing has a wall defining a passage of an airflow generated by rotation of the impeller. At axial ends of the passage are formed an air inlet and an air outlet, respectively. The wall is provided with an air-inlet side portion which has an inner diameter increasing toward the air inlet. An axially upper end of a radially outer edge of each blade axially projects toward the air inlet beyond the lid of the impeller cup, and is located to be covered by the air-inlet side portion when seen from the outside in the radial direction. An axially upper end of a radially inner edge of each blade is located on a base portion side of the lid of the impeller cup. An axially upper edge of each blade is at an angle with respect to the axial direction so as to get close to the base portion in a direction from the radially outer edge of each blade to a radially inner edge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile