Patent ID: 6088937
Filing Date: 2000-07-18
Classification: E01H

Abstract:
A suspension system for a load, mounted to a vehicle, such that the load may be raised to a transport position or lowered to an operating position by a positioning means, said suspension system being disposed between and connected to said load and said positioning means, movement of said positioning means being transmitted to said load only through said suspension system, said suspension system comprising:(a) a two-way shock absorber having first and second ends, the first end being secured to said positioning means, the second end being secured to said load;(b) an expansion spring co-axially positioned about said shock absorber, the first end of said expansion spring being secured to the first end of said shock absorber and the second end of said expansion spring being secured to the second end of the shock absorber;whereby said suspension system attenuates both the relative movement between said load and said vehicle and the resultant forces transmitted from said load to said vehicle.