Automatic spot sprayer

Details Automatic spot sprayer Automatic spot sprayer

1974-10-24

1976-06-01

Pellegrino, Stephen C.

Plant husbandry

Crop thinning, including fruit, foliage, or moss removal

47 17, 172 6, A01B 4100, A01G 1300

Patent

active

039599248

ABSTRACT:
Apparatus for treating plants, such as weeds with an herbicide, which plants have grown to at least a predetermined height, including a sensor comprising an adjustable, electrically conductive probe arm adapted to contact such plants coupled to electrical circuitry for generating an electrical signal when such contact is made. The electrical signal opens a solenoid actuated valve which allows the treatment material to flow from a pressurized storage tank through conduits to spray nozzles which dispense the treatment material over the plant. The circuitry includes means by which the solenoid actuated valve is maintained open for a predetermined minimum duration to assume adequate treatment of the plants.

REFERENCES:
patent: 1611774 (1926-12-01), Peel
patent: 2484069 (1949-10-01), Boncompain
patent: 3016653 (1962-01-01), Gardner
patent: 3584787 (1971-06-01), Thomason
patent: 3683547 (1972-08-01), Harden
patent: 3701218 (1972-10-01), Priest
patent: 3776316 (1973-12-01), Eberhart
patent: 3866397 (1975-02-01), Koziol
patent: R26166 (1967-03-01), Inhofer

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