Agricultural planter

Details Agricultural planter Agricultural planter

1995-09-22

1998-01-20

Reese, Randolph A.

Earth working

Automatic power control

Land leveller type

172239, 111134, 111 63, 111200, 73 84, A01C 500, A01B 6300

Patent

active

057092710

ABSTRACT:
An agricultural planter comprises a frame with a plurality of wheels and adapted to be towed by a tractor. The planter has a plurality of row planting units mounted on the frame and carrying planting implements, and the planting units are vertically movable relative to the frame. A soil-hardness sensing unit carried on the frame produces a signal representing the hardness of the soil. A controllable biasing device is connected to the planting units for adjusting the force applied to the soil by the planting units, in response to the signal representing the hardness of the soil.

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Farm Journal, "Listen to Your Soil", pp. 13 and 15; Jan., 1993.
Mannesmann Rexroth Catalogue, "Proportional Pressure Reducing Valve Model DRE/DREM (Series 5X)", pp. 1-3; May, 1994.

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