Earth working – Automatic power control
Reexamination Certificate
1999-01-28
2001-01-23
Novosad, Christopher J. (Department: 3671)
Earth working
Automatic power control
C172S042000, C172S043000, C172S256000, C701S050000
Reexamination Certificate
active
06176320
ABSTRACT:
BACKGROUND
Tools to facilitate small and medium gardening process are as old as man's first attempts to develop an agricultural society and are abundant in number such as an electric power small tractor U.S. Pat. No. 5,743,347 April 1998, Gingerich is directed towards independent control of the drive wheels and an oscillating powered cultivator U.S. Pat. No. 4,351,396 September 1982, Moulton which addresses the type of movement of a cultivator for use between the plant rows, or prior to planting. None of these or other studied inventions attempt to quantify, control or coordinate tool activities in relation to the incremental forward movement of the tractor. Consequently a machine would prove useful and desired to perform tasks which have heretofore only been accomplishable by human hands or possibly in some instances, toxic chemicals.
These tasks can be accomplished by providing a stable frame, motor and control circuitry to supply electromechanical energy and forward, repeatable movement with a universal mounting tool hitch which can accommodate a wide range of tools.
The actual tools can be of a traditional nature for proven tasks such as plowing and cultivating, while more sophisticated appliances can be incorporated for controlled planting, weeding and even fertilizing within very close proximity to the growing plants. These qualities make the apparatus very useful where much hand work has previously been necessary in home gardens and truck farms.
BRIEF SUMMARY OF THE INVENTION
The instant invention is particularly intended for gardening and small truck farming operations consisting of a method and apparatus which provides for accurate planting of seed in rows and is, by this embodiment, able to repeat it's travel in the row to perform subsequent tasks such as in-the-row weeding, cultivating and other operations as desired. To achieve these goals, the machine is comprised of a solid frame, encoded motor, batteries, direct coupled worm drive, high traction wheels, drive and control circuitry and universal tool holder with electromechanical power available to the ground conditioning tools as needed. The named machine is also constructed to incorporate traditional tools such as plows, cultivators, weed scrapers and more. To further enhance the usability of the apparatus, an on-board solar panel is included with a special drive circuit which can switch the batteries from parrallel for charging to series for running the motor and control circuit.
REFERENCES:
patent: 4237983 (1980-12-01), Allen
patent: 4286670 (1981-09-01), Ackerman
patent: 4351396 (1982-09-01), Moulton
patent: 4621697 (1986-11-01), Webb
patent: 4719974 (1988-01-01), Kanai et al.
patent: 4807131 (1989-02-01), Clegg
patent: 5316101 (1994-05-01), Gannon
patent: 5441116 (1995-08-01), Rodriguez
patent: 5520253 (1996-05-01), Kesting
patent: 5713420 (1998-02-01), Roberts et al.
patent: 5743347 (1998-04-01), Gingerich
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