Patent ID: 8328501
Filing Date: 2012-12-11
Classification: A01G,F04D

Abstract:
1. A power tool comprising: a housing including an intake aperture; a fan disposed within the housing and operable to draw air through the intake aperture; and a fan intake shield positioned adjacent the intake aperture and configured to inhibit debris from traveling through the intake aperture while allowing air to travel through the intake aperture, the fan intake shield including, wherein each of the first rib, the second rib, and the third rib define a longitudinal axis that extends radially from the hub, a lower edge that faces toward the intake aperture, and an upper edge that faces away from the intake aperture, wherein each of the first rib, the second rib, and the third rib have a respective height defined as a respective distance from the respective lower edge to the respective upper edge, and wherein the height of the first rib is measured at a radial distance from the center of the hub, wherein the height of the second rib and the third rib are measured at the radial distance from the center of the hub, wherein the height of the first rib is greater than the height of the second rib and the height of the third rib.