Abstract: An automatic screw feeder to be coupled to a conventional electric screw driver so that a plurality of screws may be successively and automatically grasped and relocated from a screw supply to the screw driver bit. The screw feeder includes a swing arm assembly that is rotatable between a screw feeding position, at which the screws are removed from the supply, to a screw installing position, at which the screws are driven into a flat surface, or the like. The swing arm assembly includes a pair of opposing swing arms and a rotatable cam therebetween to control the separation and closing of the swing arms and the grasping and removing of the screws from the supply. The screws are carried on a spirally wound bandolier that is loaded within and removable from a storage drum.

Abstract: A lightweight, low maintenance and efficient gasoline dispensing nozzle having a nozzle spout to be inserted into the fill pipe of a motor vehicle to dispense fuel thereto from an underground storage tank while reliably preventing the escape of hydrocarbon vapors prior to and during the pumping of such fuel. The dispensing nozzle includes a resilient sealing bladder assembly which is normally spring biased to a relatively distal position at which to prevent communication between the underground tank and the atmosphere. When the nozzle spout is inserted into the fill pipe, the sealing bladder is urged axially against its spring bias to a relatively proximal position at which to release a latching assembly and thereby permit the pump handle to be depressed radially inward so that gasoline will be dispensed.