Patent ID: 7765630

Claim:
A low-profile sweeper that moves forward along a longitudinal axis comprising: a chassis, the chassis having a steerable drive, and the chassis movable on a ground surface by action of the steerable drive; a plurality of rotatable brushes, each of the plurality of rotatable brushes having a bristle set, the bristle sets of the plurality of rotatable brushes for contacting the ground surface as each of the plurality of rotatable brushes rotates; the plurality of rotatable brushes including minimum of a first brush, a second brush, and a third brush; the first brush rotatable in a first plane of rotation, the second brush rotatable in a second plane of rotation, and the third brush rotatable in a third plane of rotation; wherein an axis of rotation for the third brush is parallel to the longitudinal axis of the low profile sweeper; the first plane of rotation in a generally close, parallel proximity to the ground surface; the first brush rotatable in the first plane of rotation to contact and move a plurality of tree nuts into contact with the second brush, the plurality of tree nuts dispersed upon the ground surface; the second brush rotatable in the second plane of rotation to contact and move the plurality of tree nuts into contact with the third brush; the third brush rotatable in the third plane of rotation to contact and move the plurality of tree nuts into a contact with the third brush to move the plurality of tree nuts to form a windrow; and the second plane of rotation is oriented approximately right angle to the first plane of rotation, the third plane of rotation is oriented approximately right angle to both the first plane of rotation and the second plane of rotation, and the second plane of rotation is oriented at approximately right angle to the ground surface.