Cutting – With randomly actuated stopping means – Responsive to tool detector or work-feed-means detector
Reexamination Certificate
2007-06-05
2007-06-05
Ashley, Boyer D. (Department: 3724)
Cutting
With randomly actuated stopping means
Responsive to tool detector or work-feed-means detector
C083S471300, C083S477100, C083SDIG002
Reexamination Certificate
active
09929234
ABSTRACT:
A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relative to the working portion upon detection of the dangerous condition. A motion detection system is adapted to detect motion of the working portion and to disable the reaction system when the working portion is not moving. The motion detection system may include a sensor, such as a Hall effect sensor, an electromagnetic field sensor, an optical sensor, or an electrical sensor. The woodworking machine may take the form of a saw, the working portion may be a blade adapted to cut when spinning, and the dangerous condition may be a person contacting the blade.
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Chamberlain Robert L.
Fulmer J. David
Gass Stephen F.
Jensen Joel F.
Schramm Benjamin B.
Alie Ghassem
Ashley Boyer D.
SD3, LLC
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