Land vehicles – Wheeled – Running gear
Reexamination Certificate
2008-07-25
2010-11-30
Dickson, Paul N (Department: 3616)
Land vehicles
Wheeled
Running gear
C280S124157, C280S006157, C280S005514
Reexamination Certificate
active
07841608
ABSTRACT:
A pneumatic proportioning system for heavy-duty vehicle air springs includes an air supply, a height control valve and a solenoid valve in fluid communication with one another and with the air springs of at least one axle/suspension systems of a heavy-duty vehicle. A proportioning means is in fluid communication with the air supply, with the height control valve, with the solenoid valve, with the air springs and with atmosphere and operates to proportion loads between the air springs of the axle/suspension systems when the solenoid valve is activated during operation of the heavy-duty vehicle.
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Cervantez Jesse W.
Morris Brian R.
Oyster Michael D.
Padula Santo
Dickson Paul N
Dureska David P.
Hendrickson USA L.L.C.
Krugliak, Wilkins, Griffiths & Dougherty Co., L.P.A.
Moore Brent L.
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