Detection systems for power equipment
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United States of America Patent
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Jan 3, 2012
Issued Date -
N/A
app pub date -
May 3, 2010
filing date -
Dec 31, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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 power saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood. Woodworking machines and memory devices for use in woodworking machines having safety systems designed to detect a dangerous condition between a human and a dangerous portion of the woodworking machine and to trigger some action to mitigate the dangerous condition are also disclosed.
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