US Patent 8381344 Hard water deposit removal system

A motorized deposit removal system with a pivoting rotary head has a generally rigid tubular housing with a power source located on a first end. The power source has a speed control unit. The system has a drive assembly with a drive cable and a cable housing located within the tubular housing. The power source rotates the drive cable freely inside the cable housing. The system has a hollow pivoting member located on a tubular housing second end. The pivoting member is able to be fixed at a specific angle. A rotary head attaching member is located on the pivoting member. The head attaching member is operatively attached to the drive cable. The drive assembly passes through the hollow pivoting member. The drive assembly is flexible for allowing for pivoting of the pivoting member. The system has a head attachment located on the head attaching member.