Patent ID: 8657261

Claim:
A mobile ski towing system comprising: a horizontal mobile base having a first side, a second side, a first edge, a second edge, a third edge, and a fourth edge; an encompassing frame directly attached to the second side of the horizontal mobile base; a pivot shaft having a proximal end and a distal end, wherein the proximal end of the pivot shaft is directly connected to the second side of the horizontal mobile base at the first edge of the horizontal mobile base with a first pivot shaft bearing, wherein the distal end of the pivot shaft is directly connected to the second side of the horizontal mobile base at the third edge of the horizontal mobile base with a second pivot shaft bearing; a pivoting frame having a first side, a second side, a first edge, a second edge, a third edge, and a fourth edge, wherein the first side of the pivoting frame is directly connected to the pivot shaft to provide an axial motion about the pivot shaft, wherein the pivoting frame is housed within the encompassing frame; an electric motor directly connected to the second side of the pivoting frame; a spool directly connected to the electric motor with a spool shaft having a proximal end and a distal end, wherein the proximal end of the spool shaft is directly connected to the second side of the pivoting frame by a first spool shaft bearing, wherein the distal end of the spool shaft is directly connected to the second side of the pivoting frame by a second spool shaft bearing; a towrope having a proximal end and a distal end, wherein the proximal end of the towrope is directly connected to a handle and the distal end of the towrope is directly connected to the spool; a drum brake directly connected to the spool shaft; a brake band having a proximal end and a distal end, wherein the proximal end of the brake band is directly connected to the pivoting frame and the distal end of the brake band is directly connected to a brake damper having a proximal end and a distal end, wherein the proximal end of the brake damper is directly connected to the distal end of the brake band and the distal end of the brake damper is directly connected to the encompassing frame, wherein the pivoting frame is tilted toward the first edge of the horizontal mobile base when a load is placed on the towrope so that the distal end of the brake damper extends to prevent the brake band from coming in direct contact with the drum brake, wherein the pivoting frame is tilted toward the second edge of the horizontal mobile base when a load is released on the towrope so that the distal end of the brake damper retracts to keep the brake band in direct contact with the drum brake; a battery supply directly connected to the electric motor; and an electronic speed controller directly connected to the battery supply and to the electric motor.