Brake actuator service limit sensor
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United States of America Patent
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-
Aug 10, 1999
Grant Date -
N/A
app pub date -
May 27, 1997
filing date -
May 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brake actuator having a switch device mounted to an actuator housing with a spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted to a first end of the spring member having first and second electrical contacts which extend and electrically contact a conduction plate attached to a second end of the spring member as long as the brake actuator rod has not traveled to the service limit.
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