Patent ID: 6722046
Filing Date: 2004-04-20
Classification: B23D,B25H,B27G,Y10T

Abstract:
A hand held rotary blade saw powered by a power source, comprising:a housing, having a front portion and a rear portion; an electric motor contained within the housing rear portion; an electro-mechanical switch in electronic communication with the motor and power source for activating motor functions; a rotary saw blade mounted in the housing front portion, the rotary saw blade having a rear sector circumference enclosed within the housing front portion, a first front sector circumference, and a second front sector circumference, the combined rear, first front and second front circumferences summing to a circle; a driving connection between the motor and the rotary saw blade for rotating the rotary saw blade; a first blade guard, the first blade guard being pivotable about the rotary blade from a first position covering substantially all of the blade first front sector circumference, to a second position, such that the first front sector circumference is partially exposed; a second blade guard, the second blade guard being pivotable about the rotary blade from a first position covering substantially all of the blade second front sector circumference to a second position, such that the second front sector circumference is partially exposed, the first blade guard being adapted to receive the second blade guard when either or both the first or second blade guards are pivoted, the housing front portion being adapted to receive the first blade guard when the first blade guard is pivoted, and to receive the second blade guard when the second blade guard is pivoted; at least one guard spring contained in the housing front portion, the at least one guard spring biasing the first blade guard into the first position, and the second blade guard into the first position; and the first blade guard further comprises at least one pivot member for manual manipulation such that the first blade guard is pivoted about the rotary blade.