Patent ID: 6557894
Filing Date: 2003-05-06
Classification: B60S,Y10S

Abstract:
A stabilizing system for a trailer when parked, the stabilizing system including at least two water actuated rams located in spaced relation near the periphery of the floor pan of the trailer, each said water actuated rams having a body containing a piston, the body having first and second communication ports for communicating flow of water to and/or from said body, said piston having sealing means to form a seal between said piston and said body, said sealing means being located between said first and second ports to prevent free flow of water between said first and second ports, each said piston being connected by a leg to a footing for bearing against the ground, and wherein further sealing means is included in each said water actuated ram between said leg and said body to prevent leakage of water from said body past said leg; said water actuated rams being fluidly connected together in parallel, and said stabilizing system having a shut-off valve associated with the water actuated rams to selectively shut-off water flow to lock said water actuated rams, wherein said system includes a water inlet fluidly communicating with a selector valve, said selector valve selectively fluidly communicating via said shutoff valve with said first ports or said second ports, wherein said selector valve in a first position permits flow of water from said water inlet to said first ports to force said legs outward until said footings bear against the ground, and in a second position permits flow of water from said water inlet to said second ports to retract said legs, said selector valve having a drain to drain water from said second port in said first position, and drain water from said first port in said second position; said piston, said leg, and said body being characterized by plastic construction of water contacting parts to obviate corrosion from water.