Arvin Meritor Technology, LLC

Altair Engineering, Inc.

James W Grant

Robert P Carlstedt

Richard M Clisch

Steven Ray Miller

Nancy L Saxon

James Eckelberry

Martin Peaker

James Meredith Amrine, Jr

Mark P Reynolds

Daniel Chien

Kenneth G Lang

Jeff Lloyd

Jos Timmermann

The present invention is an apparatus or device for jacking an individual axle of a truck or a truck trailer having an air line. The device includes a valve in fluid communication with the air line, a first air bag in fluid communication with the valve, and a second air bag in fluid communication with the first air bag.

Pneumatic vehicle jacking system

A tandem axle suspension assembly includes a pair of walking beams disposed substantially parallel to a vehicle longitudinal axis supporting first and second axles. A link plate is pivotally attached to each of the walking beams and is pivotal about an axis transverse to the longitudinal axis. A first and a second link include pivotal connections between the link plate and a vehicle frame member. Vertical movement of the walking beams causes a corresponding rotation of the link plate to compensate for longitudinal displacement of the pivotal links with the first and second links and minimize longitudinal displacement of the walking beams.

Walking watts air beam

Growing community of inventors

Royal Oak, MI, United States of America

James W Grant