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US 5,497,837 AGranted
Apparatus for controlling down pressure on agricultural implements
AssigneeDawn Equipment Company
InventorBarry R. Kehrney
Life of this patent
Estimating the term…
Abstract
A soil treatment apparatus is provided having a main frame to be drawn by a towing vehicle over subjacent soil, a subframe, a structure for mounting the subframe to the main frame for vertical movement relative thereto between first and second position, and structure for attaching a plurality of soil treating implements to the subframe to follow movement of the subframe between the first and second positions.
Claims20
A soil treatment apparatus comprising:
- a main frame to be drawn by a towing vehicle over subjacent soil to be treated;
- a subframe;
- means for mounting the subframe to the main frame for vertical movement of the subframe relative to the main frame between first and second positions;
- and
- means for attaching a plurality of soil treating implements to the subframe so that the plurality of soil treating implements simultaneously follow movement of the subframe between raised and lowered positions as the subframe moves between the first and second positions,
- there being no means structurally connecting between any of the plurality of soil treating implements and the main frame other than through the subframe,
- whereby the vertical positions of a plurality of implements on the subframe can be changed simultaneously relative to the main frame.
4 more elements
A subframe assembly for a plurality of agricultural implements, said subframe assembly comprising:
- a beam;
- first means for attaching a plurality of soil treating implements to the beam to follow movement of the beam;
- and
- second means for attaching the beam to a main frame for movement of the beam vertically relative thereto between raised and lowered positions,
- said first and second means comprising means for maintaining the plurality of soil treating implements and first means in the same orientation relative to the beam as the beam moves between the raised and lowered position.
2 more elements
Dependencies are inferred from the claim text.