MULTI-AXIS CONTROL OF CONTROL VALVES IN A HI-RAIL DEVICE
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United States of America Patent
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Issued Date -
Aug 24, 2023
app pub date -
Feb 24, 2022
filing date -
Feb 24, 2022
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status (Latency Note)
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Abstract
An apparatus and a method for controlling sequential unlocking, deployment or retraction, and locking of a hi-rail gear unit. There is a valve system in which some of the valves are configured to actuate a deployment cylinder that deploys or retracts the hi-rail device, wherein some of the valves are configured to actuate a locking cylinder that locks or unlocks the hi-rail gear unit deployed or retracted; said actuations being independent from each other. A multi-axis controller is connected to the valve system and has a rod configured to move freely by pivoting, the positions of the first multi-axis controller including a first lock position, a first unlock position, a first engaged position and a first disengaged position. A guiding forces the rod along a locking axis prior to permitting movement of the rod along a deployment axis to force unlocking before deployment or retraction.
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