Patent ID: 7258205

Claim:
A braking system for a power tool having an engine with an actuatable variable throttle, the braking system comprising: a clutch mechanism provided within a drive assembly, the clutch mechanism comprising: a gear with an integral annular portion, a cage at least partially inserted into the annular portion, the cage including a radially outward positive stop at a top portion and first slots, a drive bushing mating with the cage and including second slots, the second slots corresponding to the first slots, and rollers located within spaces created by the first and the second slots, the rollers being in contact with the annular portion and the second slots and unable to escape the slots; a stop pin which engages the positive stop of the clutch mechanism to minimize a stopping time of a blade of the power tool, wherein the stop pin is biased to engage the clutch mechanism via a coiled return spring and is disengageable from the clutch mechanism via a braking system cable, the braking system cable being coupled to a throttle trigger, activation of the throttle trigger causing actuation of the variable throttle of the power tool and the disengagement of the stop pin from the clutch mechanism; and an anchor to secure the braking system cable directly to a gear box.