Safety detection and protection system for power tools

Details Safety detection and protection system for power tools Safety detection and protection system for power tools

2005-07-26

2005-07-26

La, Anh V. (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S686600, C340S562000, C318S016000, C318S480000, C324S661000, C324S688000

Reexamination Certificate

active

06922153

ABSTRACT:
A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut.

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