Hendrickson Usa, L L.c.

Nicholas J Giamati

Jacob D Andreasen

Michael J Keeler

Andrew J Westnedge

Jeff R Zawacki

Jason M Ramus

Jacob Andreasen

A mechanical down-stop for heavy-duty vehicle axle/suspension systems which includes an angled bracket that is rigidly/stiffly attached to the vehicle frame at one end, and is attached to a flexible portion of the mechanical down-stop at its other end. The flexible portion is attached to a beam of the axle/suspension system. The angled bracket is formed of an elastically deformable material and includes a bend that enables the bracket to act as a spring. The angled bracket and the flexible portion limit downward movement and react the downward force of the beam.

Mechanical down-stop for axle/suspension systems

An air spring with damping characteristics for a suspension assembly of a heavy-duty vehicle includes a bellows and a piston. The bellows includes a bellows chamber. The bellows is attached to a main member of the heavy-duty vehicle and to the piston. The piston includes an open bottom that is sealingly closed by a disc attached to the open bottom. The piston and the disc define a piston chamber. The piston is mounted on the suspension assembly of the heavy-duty vehicle. The bellows chamber and the piston chamber are in fluid communication with each other via at least one opening, wherein airflow between the bellows chamber and the piston chamber provides damping to the suspension assembly of the heavy-duty vehicle.

Air spring with damping characteristics for heavy-duty vehicles

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Akron, OH, United States of America

Nicholas J Giamati