Patent ID: 6389999
Filing Date: 2002-05-21
Classification: A01C,Y10S

Abstract:
A dynamic controller of excess downpressure exerted by an implement upon a surface, said controller comprising:a depth regulation member having a surface engaging face thereon; a surface penetrating member combined with said depth regulation member, said surface penetrating member being disposed to extend into the surface beyond the depth regulation member surface engaging face; a pressure sensor combined with the depth regulation member, said pressure sensor being disposed to detect a load upon the depth regulation member and said pressure sensor being adapted to transmit a detected load signal; a processing means for receiving the detected load signal and generating a supplemental downpressure control signal based on said detected load signal; a variable supplemental downpressure means for receiving the supplemental downpressure control signal and adjusting a supplemental downpressure applied to the depth regulation member, said variable supplemental downpressure means being combined with said depth regulation member.