Device for illuminating the stope support at a longwall face
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United States of America Patent
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Feb 9, 2010
Grant Date -
Mar 8, 2007
app pub date -
Apr 15, 2004
filing date -
May 2, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The light sources for illuminating the stope support at a longwall face are operated at low voltage, connected to the control network device, for low voltage supply of the system controllers. LEDs are particularly suitable as light sources. Measures for avoiding an impairment of the function of the system controllers are disclosed.
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