Self Leveling Trailer and Loading Ramps

Abstract

A heavy vehicle and machinery trailer having: (i) a trailer base with wheels and suspension; (ii) a trailer bed supported on the trailer base by the suspension; (iii) loading ramps connected to the trailer bed where the suspension, or other methods such as hydraulically operated landing legs, are adapted to allow an operator to alter the pitch and/or roll angle of the trailer bed relative to the ground surface and wherein where the loading ramps are adapted to have varying lengths such that the ramps can be evenly pitched when they are extended to the ground on a sloped surface. The trailer has a hydraulic system under the control of an electrical controller which is operated by a user. The electrical controller has a preset matrix of safe loading and unloading parameters which it uses to determine whether the sensed state of the trailer is safe for loading or unloading.

Dependencies are inferred from the claim text.