Drilling/bolting machine having a manual operator input device with enable switch and related methods
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United States of America Patent
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May 25, 2010
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N/A
app pub date -
Jul 8, 2004
filing date -
Jul 8, 2003
priority date (Note) -
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Abstract
This invention relates to the control of a machine for performing drilling or bolting operation, such as in an underground mine. In one aspect, the invention comprises a system including an input device for manually controlling at least one aspect of the drilling or bolting operation and a controller associated with at least one neutral switch. An actuator actuates the drilling or bolting operation and includes a valve associated with the input device and the neutral switch. The input device is operative for controlling the drilling or bolting operation only when the valve is in a neutral position according to the neutral switch. Related input devices and methods are also disclosed.
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