Patent ID: 8074684
Filing Date: 2011-12-13
Classification: B60N,F16K,Y10T

Abstract:
1. A leveling valve, comprising: a first port, a second port, and a third port; a valve; and a clutch that is provided with an engaged position and a disengaged position, wherein at least a portion of the clutch may move relative to the valve when the clutch is in the disengaged position and the clutch may move between a first rotational position, a second rotational position, and a third rotational position without moving the valve when the clutch is in the disengaged position, and wherein the clutch moves the valve when the clutch is in the engaged position; the valve being movable between the first rotational position, the second rotational position, and the third rotational position, with the third rotational position being achieved by rotation in a direction opposite to a rotational direction achieving the second rotational position, whereby: