REMOTE REGULATOR FOR ROOF BOLTER
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United States of America Patent
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Issued Date -
Dec 18, 2014
app pub date -
Jun 13, 2013
filing date -
Jun 13, 2013
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Abstract
A regulator for controlling operation of a drill thrust actuator and a drill rotation actuator in a roof bolter, is provided. The regulator includes a first pressure relief unit, a second pressure relief unit and a flow control valve. The first pressure relief unit is configured to selectively allow a hydraulic fluid to pass to the drill thrust actuator. The second pressure relief unit is configured to selectively allow the hydraulic fluid to pass to the drill rotation actuator. Further, the flow control valve is configured to selectively adjust a flow of the hydraulic fluid to the drill rotation actuator.
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