Aggregate material spreader

Details Aggregate material spreader Aggregate material spreader

1991-05-13

1993-08-10

Shaver, Kevin P.

Dispensing

Automatic control

Motor control

222 52, 222612, 222613, 222556, 239650, 239155, 404110, B67D 508

Patent

active

052341283

ABSTRACT:
A material spreader consisting of a hopper, attached to a motor vehicle, which receives and dispenses an aggregate material in predetermined quantities and in a layer having substantial uniformity in thickness. The rate of dispensing the aggregate material is controlled by a computer which receives the desired weight of aggregate per area data input from the operator, senses the velocity of the motor vehicle, and adjusts the release rate of the aggregate from the hopper. The hopper is laterally expansible to accommodate varying road widths, and dispenses the aggregate material through gate openings in the bottom of the hopper. The aggregate is dispensed from the hopper without the aid of any operational parts exposed to the aggregate material within the interior area of the hopper.

REFERENCES:
patent: 2850216 (1958-09-01), Webster
patent: 2953977 (1960-09-01), Warren
patent: 3029714 (1962-04-01), Creswell
patent: 3519169 (1970-07-01), Holland
patent: 3677540 (1972-07-01), Weiss
patent: 3679098 (1972-07-01), Weiss
patent: 3877645 (1975-04-01), Oligschlaeger
patent: 4350293 (1982-09-01), Lestradet
patent: 4523280 (1985-06-01), Bachman
patent: 4676690 (1987-06-01), Allen
patent: 4705125 (1987-11-01), Yamada et al.

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