Bogey frame sensor for railcar mover
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Nov 1, 2007
app pub date -
Apr 27, 2006
filing date -
Apr 27, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A railcar moving or positioning system incorporating relatively simple mechanical bogey frame side member sensing systems mounted on each dog carriage of a railcar indexing system is disclosed. Each sensing system is used to control the operation of a dog mounted on the same carriage. A mechanical follower device is employed to sense the underside of an encountered bogey frame side member. Deflection of the follower is used to operate a hydraulic valve which, in turn, is used as a control cylinder to raise or lower an adjacent dog member.
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