Patent ID: 8430178

Claim:
A suspension system comprising: a length-adjustable support arm and a rigid support arm, the support arms pivotally connected to a front bracket housing and to a rear bracket housing, the support arms held substantially parallel one above the other by the bracket housings; a force translation member connected at one end to the rigid support arm and at the opposite end to a compression assembly; wherein the suspension system supports the weight of an attached ground-working implement in a state of suspension over the ground, the implement in communication with the ground surface such that deviations in ground level change the level of force translated through the implement and force translation member to the compression assembly thereby increasing or decreasing compression rate of the assembly accordingly resulting in a respective raising or lowering of the ground-working implement; and wherein the force translation member is linearly adjustable relative a mounting bracket on the rigid support arm, the force translation member pivotally connected to the support arm via the bracket.