Patent ID: 8083573

Claim:
A rotary floor sander comprising a vertically oriented bell housing enclosing the sides and backside of a disk casing enclosing a rotable sanding disk to which a floor sanding pad is attachable; a floor support on a backside of the bell housing configured to limit floor contact area of the sanding disk to forward of center, the bell housing being thus supported just above the floor by the floor support and the sanding disk; a port in an upper region of the bell housing communicating with a vacuum source for extracting dust from the bell housing by pulling air from between the floor and the lower edge of the bell housing; and a dust lifting vane disposed between the bell housing and the disk casing extending from proximate the floor contact area of the sanding disk upward in the direction of rotation towards the suction port in the bell housing, said vane being configured and aligned with said sanding disk so as to receive dust particles expelled by rotary sanding action from beneath the sanding disk and direct the dust particles upward in the direction of rotation towards the suction port.