Patent ID: 7992814

Claim:
A mobile rock crusher system comprising: a frame having a longitudinal axis; wheels coupled to the frame, and configured to allow the frame to roll in a direction parallel to said longitudinal axis; a rock crusher coupled to said frame; an electronic control box, having a bottom surface, the electronic control box configured to provide electronic control of said rock crusher; a first pivoting boom, coupled to said frame, and configured to provide force for lifting said bottom surface of said electronic control box up off an elevated location, automatically moving the electronic control box in a direction away from said frame, and controllably lowering said electronic control box below the elevated location so as to allow the bottom surface of the electronic control box to be supported by the earth; a non-rigid connection mechanically coupling said electronic control box to said pivoting boom; said non-rigid connection is configured so that said non-rigid connection supports said electronic control box from above when said bottom surface is not supported from below at said elevated location and further not supported by the earth; said non-rigid connection further configured to automatically increase a looseness characteristic after the electronic control box contacts the ground; and an actuator configured for causing said first pivoting boom to lift in a first plane of movement, said electronic control box up, move, in a second plane of movement, said electronic control box away from the frame, and lower, in a third plane of movement, the electronic control box down to be supported by the earth; and cause the non-rigid connection to end support of the electronic control box from above, all in response to movement of a control member in a single direction.