| 摘要 |
There is disclosed a reverisble spray tip assembly useful for airless sprayers and the like which has the spray tip member mounted in a barrel housing with distal portions of equal lengths and diameters and medial rim means of greater diameter. The assembly is secured to the discharge of a spray gun and the like with a retainer but that holds the assembly in a spraying position with the spray tip member directed to discharge a spray pattern from the gun and in a reversed position with the spray tip member seated against the barrel of the spray gun to permit discharge of the liquid in a reverse direction through the spray tip member, thereby cleaning the member. The assembly is provided with at least one flat chordal surface on the forward distal portion which is indexed to the orifice of the spray tip member to permit alignment of the spray tip member after securing the retaining nut and assembly to the barrel of the spray gun. In a preferred embodiment, the retaining nut and spray tip assembly are combined with a spray guard which has a cylindrical portion for receiving the retaining nut with an aperture bearing a flat chordal surface for securing the flat spray pattern tip assembly against rotation with respect to the guard, permitting adjustment of spray pattern to desired orientation by rotating the guard and an antifriction bearing is provided to facilitate the rotational adjustment.
|
