Patent ID: 7134161

Claim:
A sweeper comprising: a first main wheel being capable of spinning in both a counterclockwise and a clockwise direction; a brush wheel driven by said main wheel and being capable of spinning in a counterclockwise direction irrespective of the spinning direction of the main wheel; a plurality of intermediate wheels capable of translating the spinning motion from said main wheel to said brush wheel via an outer circumference of the main wheel; and each of said wheels capable of simultaneous and non-slip spinning, wherein said plurality of intermediate wheels comprising a first drive wheel, a second drive wheel and a third gear wheel, said first drive wheel including a first gear wheel and the second drive including a second gear wheel; said first drive wheel capable of spinning in a clockwise direction, said second drive wheel capable of spinning in a counterclockwise direction, said third gear wheel being in direct contact with the first gear wheel and the brush wheel; said first drive wheel having a first end wheel and said second drive wheel having a second end wheel, said first end wheel capable of connecting with the outer circumference of the main wheel when said main wheel spins in a clockwise direction and said second end wheel capable of connecting with the outer circumference of said main wheel when said main wheel spins in a counterclockwise direction.