Hydraulic vehicle brake system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 1, 1980
Grant Date -
N/A
app pub date -
Mar 20, 1978
filing date -
Mar 21, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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