Spreader devices having a controlled output

Details Spreader devices having a controlled output Spreader devices having a controlled output

1979-04-11

1981-11-24

Bartuska, F. J.

Dispensing

Automatic control

Constant weight, volume or pressure control by output

222614, 239127, 239156, A01C 1500, B05B 906

Patent

active

043019447

ABSTRACT:
A vehicle mounted liquid spreading device adapted to deliver selected, essentially constant, volumes of liquid per unit area over a range of vehicle speeds. The device operates to adjust the pressure in the liquid distribution system as a function of vehicle speed by comparing the pressure in the distribution system to a pressure proportional to the vehicle speed and utilizing a signal so obtained to control a liquid by-pass valve.

REFERENCES:
patent: 3529772 (1970-09-01), Brodersen
patent: 3550854 (1970-12-01), Fischer
patent: 3877645 (1975-04-01), Oligschlaeger
patent: 4023020 (1977-05-01), Lestradet
patent: 4193547 (1980-03-01), Ballu

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