Vacuum cleaner

Claim 1

An electric vacuum cleaner having a suction creating means comprising: a. a suction nozzle connected to said suction creating means; b. a generally cylindrical brush roller mounted for rotation in said suction nozzle, said roller including a generally flat surface disposed approximately perpendicular to a radius of said roller, the trailing edge of said flat surface intersecting the generally cylindrical outer surface of said brush roller and the leading edge of said generally flat surface terminating in a wall extending substantially perpendicular to said flat surface; c. a plurality of bristles mounted on the brush roller extending outwardly from the flat surface of said brush roller, said bristles being located relatively close to said generally perpendicular wall; d. said generally perpendicular wall being generally parallel to said plurality of bristles and extending from said flat surface to the generally cylindrical surface of said brush roller so that when a carpet being cleaned is sucked upwardly partially into said suction nozzle the cylindrical surface of said roller in the vicinity of said perpendicular wall contacts the carpet pile and the generally perpendicular wall prevents the carpet pile from contacting radial Inner portions of the bristles whereby the radial outer portions of the bristles in contact with the carpet are bent toward the trailing edge of the flat surface thereby preventing the brush from stalling due to the resistance of the bristles on the carpet pile.