Patent ID: 7937792

Claim:
A scrubbing device comprising: a support member; a battery; a yoke coupled to the support member, the yoke having a yoke arm; a head assembly having an electric motor and an output member, the electric motor being electrically coupled to the battery, the output member being driven by the electric motor and adapted to be coupled to a scrubbing accessory; and a cam lock releasably coupling the yoke arm and the head assembly together, the cam lock comprising a lock member and a lever, the lock member having a first end and a second end opposite the first end, the first end being engaged to the head assembly, the second end extending through the yoke arm, the lever having a cam that is pivotally coupled to the second end of the lock member; wherein pivoting the cam moves the lock member in a direction that is parallel to an axis about which the head assembly is pivotable relative to the yoke.