Fluid-pressure and analogous brake systems – Releasing – Motor
Patent
1975-01-31
1977-02-08
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Releasing
Motor
188170, 188359, 303 13, 303 40, 303 68, B60T 1322
Patent
active
040069397
ABSTRACT:
A brake pressure modulating control valve for a hydraulically operated brake system. The control valve includes a spool associated with an air spring chamber. The system includes equipment for modulating the air pressure in the air chamber for constantly and concurrently modulating the pressure of the hydraulic fluid in the brake system.
REFERENCES:
patent: 3259216 (1966-07-01), Klaus et al.
patent: 3423136 (1969-01-01), Lohbauer
patent: 3511276 (1970-05-01), Jessen et al.
patent: 3547234 (1970-12-01), Cummins et al.
patent: 3586138 (1971-06-01), Engle
patent: 3606485 (1971-09-01), Scott
patent: 3647030 (1972-03-01), Burnett
patent: 3650568 (1972-03-01), Poplawski
Blix Trygve M.
Butler Douglas C.
Caterpillar Tractor Co.
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