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US 6,920,814 B2Granted
Cutting tool safety system
AssigneeSd3, LLC
InventorsStephen F. Gass, David A. Fanning, J. David Fulmer
Life of this patent
Estimating the term…
Abstract
A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into contact with the cutting tool. A reaction system is provided to disable the cutting tool, such as by covering, blocking, destroying, wrapping, etc., upon detection by the detection system of the dangerous condition.
Claims14
A woodworking machine comprising:
- a support structure;
- a cutting tool supported by the support structure, where the cutting tool includes a cutting portion;
- a motor adapted to drive the cutting tool;
- a detection system to detect a dangerous condition between the cutting tool and a person;
- and
- a reaction system adapted to cover the cutting portion of the cutting tool with a flexible material upon detection by the detection system of the dangerous condition.
3 more elements
A woodworking machine comprising:
- an electrically conductive cutter;
- a detection system adapted to detect contact between a person and the cutter, where the detection system is adapted to capacitively impart an electric signal on the cutter, and to detect the occurrence of a determined change in the electric signal on the cutter;
- and
- a reaction system associated with the detection system and the cutter, where the reaction system covers the cutter with a flexible material upon detection of contact between the person and the cutter by the detection system.
1 more element
Dependencies are inferred from the claim text.