| Patent Number |
Title Of Patent |
Date Issued |
| 4573704 |
Internal lift axle suspension system |
March 4, 1986 |
| Provided is a lift axle suspension system employing an extendible air chamber in which the lifting mechanism is located. The mechanism for lifting the vehicle's wheels out of road engagement includes a spirally coiled spring connected to a reel having a cable wrapped around it. The u |
| 4566719 |
Spaced axle-to-beam connection for suspension of the rigid beam type |
January 28, 1986 |
| A rigid, longitudinal beam-type suspension has its beam rigidly connected to the axle by an axle seat which does not directly contact the beam, but is spaced therefrom by a pair of longitudinally spaced lateral plates extending through the beam such that forces are minimized by the r |
| 4504080 |
Leaf spring lift axle suspension system |
March 12, 1985 |
| An upwardly biasing back-to-back, quarter-elliptic, diverging pair of leaf springs are employed as the lifting mechanism in a lift axle suspension system for wheeled vehicles. The springs normally bias the lift axle off of the road surface. By inflation of air bags, the wheels are lowere |
| 4371190 |
Axle suspension system |
February 1, 1983 |
| An axle-to-beam connecting member for a beam type axle suspension, the member comprising an axle housing capable of rigidly retaining an axle therein, an elastomerically bushed beam housing for retaining a beam therein and an elastomerically bushed pin connection for pivotally connec |
| 4300787 |
Lift axle suspension |
November 17, 1981 |
| A lift axle suspension wherein the mechanism for lifting the axle includes a pivotal connection located below the longitudinal frame member of the vehicle and a pair of plates, one pivotally attached to the pivotal connection and the other rigidly attached in the suspension, an air b |
| 4261597 |
Axle alignment mechanism and method |
April 14, 1981 |
| A mechanism for aligning an axle using a beam suspension connected at its ends to the vehicle and intermediate its ends to the axle, the mechanism including a saddle connector for the axle and beam which allows the axle to be rigidly connected before alignment and the beam to be slidably |
| 4174855 |
Wheeled vehicle axle suspension system |
November 20, 1979 |
| The wheel hub cavity is used to accommodate a portion of the air bellows in an axle suspension of either the single or tandem drive axle type enabling the air bellows to be located directly over the axle and under the frame. The resulting lightweight, high load carrying capacity structur |
| 4166640 |
Axle suspension for wheeled vehicles |
September 4, 1979 |
| An axle suspension particularly applicable to trailers includes an elongated, substantially rigid beam, a pneumatic bellows located at one end of the beam, a hanger bracket located at the other end of the beam, an axle connecting means rigidly connected to the beam and axle, and an e |
