Abstract: Vehicle suspension comprising a pair of leaf springs (1) located or locatable on respective opposed side of a vehicle chassis (3) and extending longitudinally thereof, and an anti-roll device (12) which is arranged to extend transversely of the vehicle chassis (3), and means (41, 42, 46) mounting opposed ends (22, 23) of the anti roll device (12) rigidly to respective ones of the pair of opposed leaf springs (1).

Abstract: An air suspension anti-roll stabilization system includes air suspension devices, such as at least one pair of air bags air spring mounted upon an axle via leaf spring suspension arms of an associated vehicle on respective opposed sides of the longitudinal axis of the vehicle, with the axle being located at least partially with respect to the frame or chassis of the vehicle by means of a pair of leaf spring arms which are located on respective opposed sides of the longitudinal vehicle axis and of which each has one end mounted pivotally to the vehicle frame or chassis, wherein anti-roll means is connected rigidly between the part of longitudinal leaf spring suspension arms.

Abstract: An air suspension anti-roll stabilization system includes air suspension devices, such as at least one pair of air bags air spring mounted upon an axle via leaf spring suspension arms of an associated vehicle on respective opposed sides of the longitudinal axis of the vehicle, with the axle being located at least partially with respect to the frame or chassis of the vehicle by means of a pair of leaf spring arms which are located on respective opposed sides of the longitudinal vehicle axis and of which each has one end mounted pivotally to the vehicle frame or chassis, wherein anti-roll means is connected rigidly between the pair of longitudinal leaf spring suspension arms.

Abstract: The present invention discloses a method and apparatus for a Vehicle Suspension System for a vehicle. The present invention comprises a left spring coupled to the chassis of a vehicle. The leaf spring couples to a rigid arm, which in turn couples to a pivotal axis that is located at a position offset from the neutral axis of the leaf spring. The position of the pivotal axis with respect to the neutral axis of the leaf spring varies the rate of leaf spring so as to soften or stiffen the suspension system.

Abstract: A suspension system for a vehicle wheel set, comprising first suspension means, second suspension means, and stabilizing means arranged generally transversely of the longitudinal axis of an associated vehicle and arranged to act in conjunction with at least one of said first and second suspension means, provide the vehicle with an anti-roll characteristic when operating under certain conditions. In a preferred embodiment, the first suspension means comprises a pair of leaf springs, and the second suspension means comprises a leaf spring, coil spring, hydraulic, pneumatic, or rubber (elastomeric) suspension arrangement, or any combination thereof, connected to an anti-roll bar or tube. Also provided is a composite stabilizing means in the form of an anti-roll bar or tube connected between a pair of leaf spring arms, preferably adjustable longitudinally thereof.

Abstract: The present invention discloses a lightweight dual-stage tapered leaf spring assembly for use in heavy-duty trailer suspension applications. The dual-leaf tapered leaf spring assembly has a main or first tapered leaf defining a first stage rate and a second tapered leaf operable to define a second stage rate. The first and second leafs are formed to include a tapered thickness profile which closely approximates a true modified parabolic taper. The "approximated" modified parabolic profiles for each of the main and second leafs are adapted to provide a smooth non-linear transition between the first and second stage rates.