Patent ID: 9234425
Filing Date: 2016-01-12
CPC Classification: E21D

Claim Text:
1. A system for selectively enabling and disabling movement of a machine relative to a surface on which the machine is supported, the system comprising: a mobile machine supported on a surface, the mobile machine including a machine frame and a support member coupled to and moveable relative to the machine frame between a first position and a second position different from the first position; an actuation module configured to enable movement of the machine along the surface based on the support member being in the first position, and configured to disable movement of the machine along the surface based on the support member being in the second position; and an enabler valve coupled to the actuation module and the support member, the enabler valve configured to send a pilot signal to the actuation module based on the support member being in the first position to enable movement of the machine along the surface.