Detection systems for power equipment
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United States of America Patent
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May 19, 2009
Grant Date -
Jul 21, 2005
app pub date -
Dec 31, 2004
filing date -
Dec 31, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood.
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