Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1978-02-21
1980-06-17
Halvosa, George E. A.
Brakes
Wheel
Axially movable brake element or housing therefor
188 715, 188 723, 188 724, 188 732, 188369, 192 85AB, 303 6A, F16D 5504
Patent
active
042079683
ABSTRACT:
A double, disc type brake system for wheeled vehicles, including two disc packs, operationally combined in a working set, for each vehicle wheel to be braked, the disc packs in each set being respectively placed in back to back relationship, and the disc packs having hydraulically operated multiple pistons for actuation thereof, the multiple pistons constituting two oppositely faced piston sets operatively positioned in a common actuator support centrally disposed between the two disc packs of each set, and the two piston sets being respectively operable to actuate the two disc packs of the set. The hydraulic system is operable to initially actuate one disc pack of each set upon movement of a brake pedal through a first increment of application for light braking action, and to inclusively actuate the other disc pack of each set upon movement of the pedal in an additional increment of application for increased braking action.
REFERENCES:
patent: 1839298 (1932-01-01), Charles
patent: 1961207 (1934-06-01), Dierfeld
patent: 2888101 (1959-05-01), Bayles
patent: 3155197 (1964-11-01), Lee et al.
patent: 3160238 (1964-12-01), Jagenberg
patent: 3199374 (1965-08-01), O'Malley et al.
patent: 3765519 (1973-10-01), Kell
patent: 4064974 (1977-12-01), Filderman
Caterpillar Tractor Co.
Halvosa George E. A.
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