Patent ID: 9623498
Date: 2017-04-18
CPC Classifications: B23D,B27B,B27G,Y10S,Y10T

Claim:
1. A table saw comprising: a table; a circular blade; a rotatable arbor that supports the blade; an arbor block that supports the arbor; an elevation carriage that supports the arbor block; a latch that connects the arbor block and the elevation carriage during normal use of the saw; electronics that detect contact between the blade and a person; an actuator triggerable upon detection of contact between the blade and a person; and a motor to rotate the arbor and blade; where the elevation carriage moves relative to the table to change the elevation of the blade; where the arbor block is pivotally connected to the elevation carriage; where the arbor block has a first position in which the latch connects the arbor block and the elevation carriage; where the arbor block has a second position in which the latch does not connect the arbor block and the elevation carriage; where the arbor block pivots from the first position to the second position upon the occurrence of a retraction force; and where the actuator causes the retraction force to occur.