Fluid-pressure and analogous brake systems – Multiple control – Fluid and electric
Patent
1978-03-20
1980-01-01
Reger, Duane A.
Fluid-pressure and analogous brake systems
Multiple control
Fluid and electric
303 9, B06T 1370
Patent
active
041813685
ABSTRACT:
A fluid operated braking control system for spring brake cylinders admitting fluid under pressure in both brake applying and brake release directions has a selectively variable pressure from zero to a predetermined maximum applied to overcome the spring and release the brakes and a selectively operable constant pressure fluid applied to aid the spring in the braking direction.
REFERENCES:
patent: 3680666 (1972-08-01), Sommer
patent: 3724609 (1973-04-01), Kobald
patent: 3844625 (1974-10-01), Ingram et al.
patent: 3869176 (1975-03-01), Kessler et al.
patent: 3944287 (1976-03-01), Nagase
patent: 3957315 (1976-05-01), Cummins et al.
patent: 3999073 (1976-12-01), Johnson et al.
patent: 4033629 (1977-07-01), Spalding
Brown Laurence R.
Reger Duane A.
SAB Industri AB
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