Automatic self-resetting parking brake
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United States of America Patent
Stats
-
Dec 18, 1990
Grant Date -
N/A
app pub date -
Jun 9, 1989
filing date -
Jun 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A parking brake having an output lever connected at a first pivot point to a brake rod, at a second pivot point to a automatic fluid responsive actuator and at a third point to one end of a chain of a standard manual releaseable parking brake unit. The other end of the chain is connected to a reset lever which is activated by the automatic actuator to reset the manual parking brake unit after manual release and during automatic release. The automatic actuator includes an air bellows to drive a piston, and a simple interlock valve connecting the air spring to a brake line.
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