Land vehicles – Wheeled – Running gear
Patent
1975-01-10
1976-07-13
Wood, Jr., M. H.
Land vehicles
Wheeled
Running gear
267 64A, 188297, B60G 1128
Patent
active
039689760
ABSTRACT:
A hydraulic strut primarily for use in an off-highway vehicle suspension system having a pair of liquid springs connected together in tandem in axial alignment for providing two distinct spring constants to the suspension system. The spring constants are provided to operationally correspond to the loaded and unloaded condition of an off-highway vehicle such as large dump trucks and other similar equipment. Each liquid spring includes a cylinder filled with pressurized hydraulic fluid with a displacement rod reciprocably slidable in a sealed manner through one end of the cylinder means. The free ends of the two displacement rods are connected between the chassis and body portion of the vehicle to provide composite suspension afforded through the different spring constants. In addition, each liquid spring includes a dampening head attached to its respective displacement rod so as to provide spring suspension to the vehicle in a controlled and desired manner.
REFERENCES:
patent: 1192353 (1916-02-01), Stevens
patent: 2139192 (1938-12-01), Krekel
patent: 2899194 (1959-08-01), Zumwalt
patent: 3098644 (1963-07-01), Phillips
patent: 3163262 (1964-12-01), Allinquant
patent: 3193875 (1965-07-01), Taylor
patent: 3201112 (1965-08-01), Wossner
patent: 3578303 (1971-05-01), Fullam
patent: 3647239 (1972-03-01), Katsumori
patent: 3865356 (1975-02-01), Wossner
A-T-O Inc.
Carroll John A.
Wood, Jr. M. H.
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