An apparatus and method for clearing an accumulation of matter from a surface that includes a blade configured to collect matter upon movement of the apparatus and means to shift the collected matter and distribute it laterally from the apparatus. The apparatus may include a plurality of helically arranged ribbons adjacent the blade formed such that the radial distance from a central axis decreases away from a center portion of the blade. A sealed rotor chamber may also include a rotor with blades that are adjustable in a radial direction or flared in both first and second rotational directions.
