P&G Patents Electric Stain Removal Brush
U.S. Patent No. 7,469,703 B2: Procter & Gamble has been awarded a patent covering an electric stain removal brush that has a cleaning efficiency angle between approximately 0-100°. The brush is comprised of a handle with a motor disposed therein; a head with a longitudinal axis; a tilted bristle holder that oscillates or rotates; a set of bristles associated with the bristle holder wherein the motor is operatively connected to bristle holder; and a shaft connected to the motor and to the bristle holder. The patent also covers providing an absorbent stain receiver article which contacts the inanimate surface and putting a solution in contact with the surface; contacting the electric stain-removal brush to brush the solution on the surface; and contacting the surface treated with the solution with the absorbent stain receiver article.
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