A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition....http://www.google.de/patents/US20020056349?utm_source=gb-gplus-sharePatent US20020056349 - Miter saw with improved safety system
