B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
B60G 17/015 (2006.01) B60G 17/052 (2006.01) B62D 61/12 (2006.01)
Patent
CA 2047831
Apparatus and process for shifting vehicle loads between the axles of multi-axle vehicles. The apparatus includes means for automatically restoring pneumatic pressure to the suspension system of an axle when the speed of the vehicle exceeds a predetermined speed. The apparatus also includes means for automatically exhausting the pneumatic pressure if the speed of the vehicle falls below the predetermined speed within a predetermined time from actuating the device. The process includes the steps of automatically restoring pressure to the pneumatic suspension system of a dead axle when a predetermined speed has been exceeded, and again exhausting the pressure if a fall in vehicle speed below the predetermined speed occurs within a specified time. An override in both the apparatus and method prevents exhaustion of the pneumatic pressure after a predetermined time from first exhausting the pressure.
Corey Jeffrey S.
Miles Michael A.
Gowling Lafleur Henderson Llp
Hendrickson International Corporation
Lufkin Industries Inc.
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