Abstract: A painting assembly may be configured to removably support a paint container having an outer surface. The assembly may include a paint sprayer having a mounting portion with a support portion and a flange, a motor, a pump, a siphon line configured to draw paint from the paint container, and a dispensing line configured to dispense paint via pressure from the pump. The assembly may include a dolly having a base and wheels. The base may have a sidewall with an upper edge. When the paint container is received in the base, the support portion of the mounting portion may be configured to rest on the paint container and the flange may be configured to extend over the outer surface of the paint container, such that the paint sprayer may be supported on the paint container and inhibited from moving in a lateral direction off of the paint container.

Abstract: A self-cleaning valve has its closure member rotated against a valve seat during closing, by an externally threaded spindle rotated by an actuator. The spindle has a threaded portion screwed through an internally threaded collar which is pressed by a spring towards the valve seat. When the member engages the valve seat further rotation of the spindle causes the collar to ride up the spindle against the spring bias which maintains the closing force on the member while allowing it to rotate to clean the closing surfaces.