Patent ID: 6942232

Claim:
A suspension system for a transport vehicle, comprising: a body pivotable about a first axis, said body having a first attachment station spaced apart from a second attachment station; an axle disposable along a second axis perpendicular to said first axis; an axle linkage member having a third attachment station spaced apart from a fourth attachment station, said third attachment station of said axle linkage member pivotally connected to said first attachment station of said body, and said fourth attachment station of said axle linkage member pivotally connected to said second attachment station of said body, said axle linkage member pivotable about a third axis parallel to said second axis; said axle pivotally connected to said axle linkage member, said axle pivotable about a fourth axis perpendicular to said first, second and third axes; two spaced apart fluid activated cylinders pivotally connected between said body and said axle linkage member, wherein said two fluid activated cylinders are disposed outside of said first, second, third, and fourth attachment stations; and, wherein when said two fluid activated cylinders are extended, said axle linkage member pivots away from said body, and when said two fluid activated cylinders are retracted, said axle linkage member pivots toward said body.