Patent ID: 7318493

Claim:
A hybrid remote control lawn mower comprising: a frame; a right rear DC motor rigidly attached to the frame; a right rear wheel rotatably attached to the right rear DC motor for propelling the hybrid remote control lawn mower; a left rear DC motor rigidly attached to the frame; a left rear wheel rotatably attached to the left rear DC motor for propelling the hybrid remote control lawn mower; a right front free swiveling wheel assembly rotatably attached to the frame; a left front free swiveling wheel assembly rotatably attached to the frame; a lawn mower deck adjustably suspended from the frame wherein the lawn mower deck may be raised and lowered relative to the frame; an engine attached to the lawn mower deck; a lawn mower blade attached to a rotating shaft of the engine to mow lawn; an alternator attached to the lawn mower deck for providing electric power; an alternator belt assembly connecting the alternator with the rotating shaft of the engine; a battery for storing the electric power; a voltage regulator for regulating the output voltage of the alternator; a remote control transmitter that sends steering and speed control signals to a receiver; and a brain including microprocessors that receive the steering and speed control signals from the receiver and calculates and controls the amount of electric power sent to the right rear DC motor and to the left rear DC motor; wherein the hybrid remote control lawn mower turns to the right when the brain sends a greater electric current to the left rear DC motor than to the right rear DC motor; and the hybrid remote control lawn mower turns to the left when the brain send a greater electric current to the right rear DC motor than to the left rear DC motor and wherein the hybrid remote control lawn mower goes straight ahead when the brain sends an equal amount of electric current to the right rear DC motor and the left rear DC motor.