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US 2006/0123960 A1Published application
Safety systems for power equipment
OwnerStephen Gass, David Fanning +9inventors
InventorsStephen Gass, David Fanning, J. Fulmer, David D'Ascenzo, Jonathan Betts-LaCroix, Robert Chamberlain, Joel Jensen, Andrew Johnston, Sung Kim, Anwyl McDonald, Benjamin Schramm
Life of this patent
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Abstract
A saw with a safety system is disclosed. The safety system includes a detection system adapted to detect contact between a person and a blade while the blade is moving. The safety system further includes a brake system adapted to engage the blade and to stop the blade when the detection system detects contact between the person and the blade.
Claims20
A method of operating a saw comprising:
- providing a blade configured to move to cut a work piece, where the blade includes a cutting edge;
- providing a motor adapted to move the blade;
- providing a detection system adapted to detect a dangerous condition between a person and the blade while the blade is moving and to distinguish that dangerous condition from proximity between green wood and the blade by imparting a signal to the blade and monitoring that signal for a predetermined change indicative of the dangerous condition;
- providing a reaction system adapted to take some action to mitigate possible injury if the detection system detects the dangerous condition;
- and
- moving the blade to cut a work piece while the detection and reaction systems are active.
3 more elements
A method of operating a saw comprising:
- providing a blade configured to move to cut a work piece, where the blade includes a cutting edge;
- providing a motor adapted to move the blade;
- providing a detection system adapted to detect a dangerous condition between a person and the blade while the blade is moving and to distinguish that dangerous condition from contact between green wood and the blade by imparting a signal to the blade and monitoring that signal for a predetermined change indicative of the dangerous condition;
- providing a reaction system adapted to take some action to mitigate possible injury if the detection system detects the dangerous condition;
- and
- moving the blade to cut a work piece while the detection and reaction systems are active.
3 more elements
Dependencies are inferred from the claim text.