A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
A01B 63/32 (2006.01) A01B 63/111 (2006.01) A01B 73/04 (2006.01)
Patent
CA 2252293
An agricultural implement includes a frame having a pair of tool-carrying wings pivotally mounted thereon for pivotal movement between raised transport positions and lowered ground-working positions. Each wing has a hydraulic wing actuator connected thereto which is extendable and retractible for effecting the pivotal motion. A hydraulic wing actuator circuit is connected to each of the wing actuators, which circuit, when connected to a tractor hydraulic system, enables the wing actuators to apply down pressure to said wings when the wings are in the lowered working positions. A hydraulic pressure control valve system controls the down pressure exerted by the wing actuators.
Hundeby David Robert
Mayerle Dean Jay
Cnh Canada Ltd./cnh Canada Ltee
Flexi-Coil Ltd.
Gowling Lafleur Henderson Llp
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