Land vehicles – Wheeled – Running gear
Reexamination Certificate
2005-07-12
2005-07-12
Ilan, Ruth (Department: 3616)
Land vehicles
Wheeled
Running gear
C280S684000, C280S124116, C280S124166, C280S124107
Reexamination Certificate
active
06916038
ABSTRACT:
A vehicle suspension system includes a pair of equalizing beams, two pairs of axle housings each having a lower portion connected to opposite ends of the equalizing beams, two pairs of linkage arms operably connected to an upper portion of each of the axle housings and with a vehicle frame, and a pair of air cylinders operably connected to the equalizing beams at a point located between the ends of the beams and with the vehicle frame. The system further includes a torsional beam extending between the first and second air cylinders, wherein the torsional beam provides the operable connection between the first cylinder and the point of the first equalizing beam located between the ends of the first equalizing beam, and the operable connection between the second cylinder and the point of the second equalizing beam located between the ends of the second equalizing beam.
REFERENCES:
patent: 2403833 (1946-07-01), Daniel
patent: 2493026 (1950-01-01), Pointer
patent: 2579556 (1951-12-01), Drong
patent: 3162465 (1964-12-01), Vaugoyeau
patent: 4120515 (1978-10-01), Vinton
patent: 4406479 (1983-09-01), Chalmers
patent: 5228718 (1993-07-01), Kooistra
patent: 6224074 (2001-05-01), Cadden
patent: 2 087 321 (1982-05-01), None
Hicks William J.
McKenzie Thomas A.
Ilan Ruth
Price Heneveld Cooper DeWitt & Litton LLP
The Holland Group, Inc.
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