Gravity spreader

Details Gravity spreader Gravity spreader

1984-07-20

1986-11-25

Feyrer, James R.

Planting

Broadcasting

Machines with scatterer

222625, A01C 708

Patent

active

046241957

ABSTRACT:
A gravity spreader includes a hopper having openings in its bottom through which material flows when a shutter is not in a closed position with the position of the shutter determining the rate of flow of material. A fluted roller allows the material to flow from the hopper to the ground only when the hopper is moving in a forward direction. The fluted roller does not rotate when the hopper is stopped or when the hopper moves in a reverse direction so that the material does not flow to the ground irrespective of the open position of the shutter.

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patent: 1859625 (1932-05-01), Laing
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patent: 1912836 (1933-06-01), Glaser
patent: 2336099 (1943-12-01), Hyland
patent: 2792970 (1957-05-01), Gaiman
patent: 2899111 (1959-08-01), Christensen
patent: 4155315 (1979-05-01), Dobbins

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