Land vehicles – Suspension modification enacted during travel – Riding or suspension height
Reexamination Certificate
2008-07-25
2010-02-16
Dickson, Paul N (Department: 3616)
Land vehicles
Suspension modification enacted during travel
Riding or suspension height
Reexamination Certificate
active
07661681
ABSTRACT:
A suspension system for towed vehicles automatically adjusts for different payloads and road conditions without the need for manual shims used in prior art suspensions. automatically adjusts a mechanical bias on the vehicle to keep the suspension within a preferred ride height range. A hydraulic cylinder between the frames of the towing and the towed vehicles provides a mechanical biasing force to the towed vehicle. A sensor measures the ride height and causes the hydraulic cylinder to retract or extend according to the bias needed to maintain the suspension in the preferred ride height range.
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Rootsaert Wayne
Woodward Norman
Zork John
Aspen Custom Trailers
Coker Robert A
Dickson Paul N
Glenn Michael A.
Glenn Patent Group
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