Cutting – With randomly actuated stopping means – Responsive to tool detector or work-feed-means detector
Reexamination Certificate
2002-01-16
2004-11-09
Ashley, Boyer D. (Department: 3724)
Cutting
With randomly actuated stopping means
Responsive to tool detector or work-feed-means detector
C083S058000, C083SDIG001, C083S471300, C083S477100, C083S490000, C083S589000, C083S581000, C192S111400, C192S138000, C337S010000, C074S814000, C307S326000, C340S590000
Reexamination Certificate
active
06813983
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to power saws, and more particularly to a miter saw with a high-speed safety system.
BACKGROUND AND SUMMARY OF THE INVENTION
Miter saws are a type of woodworking machinery used to cut workpieces of wood, plastic and other materials. Miter saws include a base upon which workpieces are placed and include a circular saw blade mounted on a pivot arm. A person uses a miter saw by placing a workpiece on the base beneath the upraised blade and then bringing the blade down via the pivot arm to cut the workpiece. Miter saws present a risk of injury to users because the spinning blade is often exposed when in use. Furthermore, users often use their hands to position and support workpieces beneath the blade, which increases the chance that an injury will occur.
The present invention provides a miter saw with an improved safety system that is adapted to detect the occurrence of one or more dangerous, or triggering, conditions during use of the miter saw, such as when a user's body contacts the spinning saw blade. When such a condition occurs, the safety system is actuated to limit or even prevent injury to the user. The present invention is also adaptable for use with other power saws as well.
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Fanning David A.
Gass Stephen F.
Ashley Boyer D.
SD3, LLC
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