Monitoring device for at least one current pickup of a conveyor truck in a conveyor system running on tracks
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United States of America Patent
Stats
-
Jan 7, 1992
Grant Date -
N/A
app pub date -
Jul 11, 1990
filing date -
Nov 30, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monitoring device is provided for at least one current pickup of a conveyor truck in a conveyor system running on tracks, whereby when viewed in a direction of travel the current pickup has a profile configuration which changes through wear as the pickup traverses a live rail. The device comprises a receiver for a test signal fixedly mounted on one side of the live rail, a transmitter mounted on the other side of the live rail, a test signal evaluating device that responds to a modified profile configuration of the current pickup resulting from wear, and an alarm signal triggered at a predetermined level of wear of the current pickup.
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