In a spray gun (1) for spraying paint with a gun housing (2) provided with a handle (3) with a union nut (10) screwed onto it that holds an air cap (11) provided with offset outlet openings (14, 15) for compressed air, the union nut (10) is positively connected to the air cap (11) in a circumferential...http://www.google.de/patents/US7540434?utm_source=gb-gplus-sharePatent US7540434 - Spray gun
