Ground-working implement
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United States of America Patent
Stats
-
Oct 4, 1988
Grant Date -
N/A
app pub date -
Feb 6, 1986
filing date -
Feb 6, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ground-working implement for rotary field tilling or ice or snow-tendingn ski slopes or the like which is drawn by a tractor or a tracked vehicle and which comprises a holder connected to the vehicle pendulously by a longitudinal beam which can be raised and lowered. The holder is connected to a rotary ground-loosening unit and a smoothing board by a four-point linkage whose cranks are dimensioned so that upon raising of the ground-loosening unit the orientation of the smoothing board remains largely unaltered thereby allowing the latter to be used for leveling the ground when the ground-loosening unit is in its raised or rest position.
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Family
International Classification(s)
Cited Art Landscape
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