Motor vehicles – Steering by driving – Independently operable drive motors
Patent
1976-03-29
1977-06-21
Peters, Jr., Joseph F.
Motor vehicles
Steering by driving
Independently operable drive motors
60571, 60588, 180 77R, B62D 1104
Patent
active
040305600
ABSTRACT:
A control system for connecting a manually actuated lever to an arm of a fluid translating device that forms part of the drive transmission for a skid steer vehicle is disclosed herein. The connection between the lever and the arm is in the form of a hydraulic fluid connection that includes master and slave cylinder and piston assemblies with the master cylinder and piston assembly connected to the lever and the slave cylinder and piston assembly connected to the control arm. The opposite ends of the respective cylinders on opposite sides of the respective pistons are interconnected by fluid conduits to define first and second chambers and both pistons are biased to a centered neutral position. The system also incorporates a hydraulic fluid reservoir that is connected to the master cylinder by ports located in close proximity to the master piston when it is in a neutral position so that any fluid losses in either cylinder are automatically replenished when the master piston is returned to the neutral position.
REFERENCES:
patent: 1716121 (1929-06-01), Giffen
patent: 2540879 (1951-02-01), Hebel et al.
patent: 2605852 (1952-08-01), Rhoads
patent: 3837417 (1974-09-01), Little
patent: 3888323 (1975-06-01), Patton
Parquet Donald J.
Pedersen Carl O.
J. I. Case Company
Pekar John A.
Peters Jr. Joseph F.
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