Land vehicles – Body elevation or tilt – Static site leveling
Reexamination Certificate
2006-06-27
2006-06-27
Ilan, Ruth (Department: 3616)
Land vehicles
Body elevation or tilt
Static site leveling
C280S006157, C280S005514, C280S005515, C280S124160, C701S037000
Reexamination Certificate
active
07066474
ABSTRACT:
The suspension and level control system for vehicles includes, so as to independently control inflation and deflation of left and right front and rear air-springs, corresponding left and right front and rear pneumatic circuits in fluid communication with a pressurized air source. Each air-spring may have at least one air ride cushion reservoir mounted in a parallel pneumatic circuit in parallel fluid communication with the air-spring. Each pneumatic circuit includes a selectively actuable valve for selectively passing pressurized air from the air source into the corresponding parallel pneumatic circuit to selectively inflate the corresponding air-spring thereby raising a corresponding corner of the vehicle; and for selectively venting pressurized air from the corresponding parallel pneumatic circuit to selectively deflate the corresponding air-spring, thereby lowering a corresponding corner of the vehicle. An anti-dive valve in each circuit having a cushion reservoir selectively isolates the corresponding reservoir upon a control signal from a processor triggered by input from accelerometers.
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Clancy Gerald W.
Fenkhuber Jack W.
Hiebert Grant W.
Edwards Antony C.
Ilan Ruth
Valid Manufacturing Ltd.
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