Patent ID: 6790108
Filing Date: 2004-09-14
Classification: B63H

Abstract:
A boat propulsion system for propelling a boat over water, the boat propulsion system comprising:a motor assembly being adapted for being positioned in the boat; a propeller member being operationally coupled to said motor assembly such that said propeller member is rotated by the motor assembly, said propeller member being adapted for being positioned under the boat such that said propeller member is positioned in the water for rotating in the water to propel the boat through the water when said propeller member is rotated by said motor assembly; a direction assembly being adapted for being coupled to the boat, said direction assembly being adapted for being actuated by the user such that said direction assembly is for controlling the direction of the boat when said propeller member is propelling the boat through the water; said motor assembly comprising a motor member and a drive shaft, said drive shaft being operationally coupled to said motor member such that said drive shaft is rotated by said motor member when said motor member is running, said drive shaft being coupled to said propeller member such that said propeller member is rotated by said drive shaft to propel the boat through the water when said drive shaft is being rotated by said motor member; said motor assembly comprising a torgue converter assembly, said torque converter assembly being operationally coupled between said motor member and said drive shaft such that said torque converter assembly is for adjusting the ratio of torque to speed between said motor member and said drive shaft when said drive shaft is being rotated by said motor member; and said motor assembly comprising a slip clutch assembly, said slip clutch assembly being operationally coupled between said torque converter assembly and said drive shaft, said slip clutch assembly being for disengaging said drive shaft from said motor member when said drive shaft fails to rotate when said propeller member strikes an obstruction in the water preventing rotation of said propeller member.