Logic control with test mode for fast-acting safety system
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United States of America Patent
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Apr 3, 2007
Grant Date -
Mar 27, 2003
app pub date -
Sep 13, 2002
filing date -
Sep 24, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable. The control system also includes a test mode to test whether the detection system is working, to test whether various materials would be detected by the detection system, and/or to test whether various materials would trigger the reaction system.
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Family
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Cited Art Landscape
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