Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsuhiro Harada0
Yoshihiro Nakano0
Hiroki Uchida0
Tomomasa Nishikawa0
Date of Patent
February 18, 2020
Patent Application Number
14122854
Date Filed
August 13, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A power tool includes: a motor; a fan driven by the motor and defining an axis and a radial direction; and a housing for accommodating the motor and the fan therein, the housing including: a peripheral wall formed with a ventilation hole; and a grid partly covering the ventilation hole, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface, the grid including at least one elongated portion extending in a longitudinal direction perpendicular to the radial direction, and a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan.
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