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US 7,677,344 B2Granted
Hybrid remote control lawn mower
OwnerLuis M. Medina, Brian H. Nagamatsuinventors
Life of this patent
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Abstract
A hybrid remote control lawn mower that includes embodiments to provide use in all seasons. These embodiments include, a wagon, a spreader, a dethacher, a leaf collector, a leaf blower, a lawn trimmer, a lawn edger, an edger, a hedge trimmer, a snow plow blade, a snow blower, etc. The hybrid remote control lawn mower allows an operator to stay at a safe distance away from the hybrid remote control lawn mower in dangerous places such as on steep hills.
Claims37
A hybrid remote control lawn mower comprising:
- a frame;
- a right rear motor apparatus attached to the frame for propelling the hybrid remote control lawn mower;
- a left rear motor apparatus attached to the frame for propelling the hybrid remote control lawn mower;
- a right front free swiveling wheel apparatus rotatably attached to the frame;
- a left front free swiveling wheel apparatus 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;
- at least one lawn mower blade connected to a rotating drive shaft of the engine to mow lawn;
- an alternator apparatus attached to the lawn mower deck for providing electric power, wherein the alternator apparatus is rotatably connected with 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 a set of command signals to a receiver apparatus;
- a brain control system that receives the set of command signals from the receiver and controls the electric power sent to the right rear motor apparatus and the left rear motor apparatus;
- wherein the hybrid remote control lawn mower turns to the right when the brain control system 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 control system sends a greater electric current to the right rear motor than to the left rear DC motor and wherein the hybrid remote control lawn mower goes straight ahead when the brain control system sends an equal amount of electric current to the right rear DC motor and the left rear DC motor;
- and
- a loss of radio wave signal detector between the remote control transmitter and receiver apparatus that stops operation of the engine and shuts off the electric power to the right rear motor apparatus and to the left rear motor apparatus.
14 more elements
Dependencies are inferred from the claim text.