发明名称 |
Drilling/bolting machine having a manual operator input device with enable switch and related methods |
摘要 |
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.
|
申请公布号 |
US7721816(B1) |
申请公布日期 |
2010.05.25 |
申请号 |
US20040887245 |
申请日期 |
2004.07.08 |
申请人 |
J.H. FLETCHER & CO. |
发明人 |
WILSON HENRY E.;COLLINS CRAIG M. |
分类号 |
E21B7/00;E21B;E21B44/00;E21B47/00;E21D20/00 |
主分类号 |
E21B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|