A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
A01B 49/06 (2006.01) A01B 15/18 (2006.01) A01B 61/04 (2006.01) A01B 63/32 (2006.01) A01B 73/00 (2006.01) A01C 7/06 (2006.01) A01C 7/20 (2006.01) F15B 13/042 (2006.01)
Patent
CA 2381878
An overload protection apparatus for use with a planter apparatus including a coulter bar and coulter/fertilizer units mounted thereto, the coulter bar pivotally mounted to the underside of a wheel supported carrier frame designed for transport in a transport direction where a hydraulic cylinder is linked between the frame and the bar for moving the bar between a ground clearing transport position and a ground engaging position where the frame, cylinder and frame form a linkage path, the protection apparatus linked within the linkage path such that a draft force applied to the bar in a direction opposite the transport direction causes a secondary force on the apparatus and, when the secondary pressure exceeds the threshold pressure level, the protector de- links the linkage path thereby reducing the draft force.
Bettin Leonard A.
Paluch Paul M.
Case Corporation
Cnh America Llc
Gowling Lafleur Henderson Llp
LandOfFree
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