Abstract: A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter to move the driver blade from the driven position to the ready position, and a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter. The fastener driver also includes an input to provide torque to the transmission and a clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter. In response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft via the clutch.

Abstract: This invention relates to a novel finger toothbrush. More particularly, this invention pertains to a unique toothbrush which can fit on a finger of a user for brushing the teeth of the user or the teeth of another human being or animal. The invention comprises a base portion with a plurality of bristles secured in and protruding from the base. A first curved finger gripping device extends from a first side of the base away from the bristles with a second curved finger gripping device extending from a second side of the base away from the bristles. Friction enhancing device are formed in the interior facing surfaces of the first and second finger gripping device.