Fluid-pressure and analogous brake systems – Flow retarder – Isolation valve
Patent
1976-03-24
1977-06-21
Halvosa, George E. A.
Fluid-pressure and analogous brake systems
Flow retarder
Isolation valve
60416, B60T 1546
Patent
active
040307581
ABSTRACT:
Dual system hydraulic braking apparatus for a vehicle comprising a piston slidable in a cylinder, the opposite ends of the piston being adapted to engage with either of two valve seats disposed on the opposite ends of the cylinder to stop fluid flow therethrough when the piston moves, the valve seats being connected respectively to two separate braking circuits, each chamber defined between each end of the cylinder and the adjacent end of the piston being connected to a hydraulic pump through respective check valve, the piston being biased to the central position by springs disposed in the chambers.
REFERENCES:
patent: 3382333 (1968-05-01), Ihnacik, Jr.
patent: 3759288 (1973-09-01), Kobashi
Halvosa George E. A.
Nilles James E.
Tokico Ltd.
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