Relay-load/ratio valve for use in brake applications on air-spring equipped vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 14, 1983
Grant Date -
N/A
app pub date -
Oct 5, 1981
filing date -
Oct 5, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control valve is provided for use in brake applications in air-spring equipped railroad and highway vehicles, particularly convertible rail-highway semi-trailers. Such vehicles usually employ pneumatic brake cylinders. The control valve combines the functions of a relay valve with two distinct output limiting characteristics, namely, service and emergency, which output limiting characteristics depend upon vehicle weight is indicated by air spring pressure. The control valve also produces an automatic minimum output to prevent total loss of braking should air spring pressure be lost due to failure.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully