Patent ID: 7914084

Claim:
A control for a vehicle having a hydraulic motor for propelling the vehicle and a spring applied-hydraulically released brake, the control comprising: a manifold including a pressure port, a brake port and a tank port; and a valve member in the manifold movable between at least two operating positions, in a first operating position the valve member permits communication between the pressure port and the brake port through the manifold and precludes communication between the pressure port and the tank port through the manifold, in an intermediate operating position the valve member permits communication between the pressure port and the tank port and permits communication between the brake port and the tank port through the manifold; and a pump member received within the valve member, the valve member including a pump chamber in communication with at least one of the ports as the pump member is moved with respect to the valve member; and an additional valve member in the manifold movable between at least two positions, in a first position the additional valve member precludes communication between the brake port and the tank port through the manifold, in the second operating position the additional valve member permits communication between the pressure port and the tank port and permits communication between the brake port and the tank port through the manifold.