Abstract: A paint spray gun in which its nozzle, nozzle-gun adapter and paint inlet fitting are all formed by a single plastic nozzle unit, and its air cap is also a one-piece plastic molding. Minor molding inaccuracies in these parts are corrected by thin section nozzle unit walls that engage portions of the air cap.

Abstract: A mileage counter for vehicles that provides signals after predetermined mileage intervals indicating the need for vehicle maintenance. Several different maintenance requirements are signalled at different intervals and after the maintenance on the vehicle has been performed each of the counting functions may be reset independently.The counter consists of a plurality of ascending order counter wheels driven by the vehicle's speedometer drive. Several ratchet wheel and switch counting assemblies are mounted adjacent and driven by the higher order one of the counter wheels. One of these counting assemblies may, for example, provide a signal indicating the need for maintenance after a five thousand mile interval, and another signal after fifty thousand miles. Each of these counting assemblies includes an advancing pawl for the ratchet wheel that moves laterally to reset the wheel after the maintenance has been performed, and a holding pawl that also defines one of the contacts of the switch.