Earthworking implement with automatic fluid flow shut-off manifo

Details Earthworking implement with automatic fluid flow shut-off manifo Earthworking implement with automatic fluid flow shut-off manifo

1974-12-19

1976-05-18

Pellegrino, Stephen C.

Planting

Liquid or gas soil treatment

Hand manipulated

172413, 137351, A01C 2302

Patent

active

039569993

ABSTRACT:
An earthworking implement such as a tractor-drawn chisel plow having a fertilizer tank is provided with an automatically operated control system for fluid dispensing when the implement is work configured. In one embodiment the implement is provided with a rockshaft for moving implement wheels between a wheels up, implement working position and a wheels down, implement transport position. An interconnector cable is wrapped at one end around the rockshaft. As the rockshaft turns and rotates the wheels into the implement working position, the cable pulls the valve stem of a fluid metering valve partially out of the valve, thereby opening the valve and permitting fluid flow.

REFERENCES:
patent: 3031983 (1962-05-01), Hanson
patent: 3518953 (1970-07-01), Johnston
patent: 3608645 (1971-09-01), Meiners
patent: 3643745 (1972-02-01), Betulius et al.

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