Fluid-pressure and analogous brake systems – Multiple systems
Patent
1977-09-29
1978-11-07
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Multiple systems
303 7, 303 9, 303 71, B60T 1310
Patent
active
041242548
ABSTRACT:
A vehicle braking system has a spring engaged and fluid released drive line brake, a pair of fluid engaged and spring released service brakes, and a control circuit for applying only the service brakes over a preselected braking force range and for applying the service brakes and the drive line brake in response to a braking force greater than said preselected range. The control circuit preferably includes an inverter valve, and also an override valve for selectively applying the drive line brake independently of the operation of the service brakes.
REFERENCES:
patent: 3582150 (1971-06-01), Williams
patent: 3650568 (1972-03-01), Poplawski
patent: 3761139 (1973-09-01), Rogers
patent: 3778115 (1973-12-01), Ryburn
patent: 3900227 (1975-08-01), Smith
patent: 3917037 (1975-11-01), Prillinger
patent: 3957315 (1976-05-01), Cummins
Blix Trygve M.
Caterpillar Tractor Co.
Eisenzopf Reinhard J.
Lanchantin, Jr. Charles E.
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