Abstract: A fluid dispensing system may comprise a fluid container configured to contain paint. The fluid container may have a bottom end, an open upper rim, and a sidewall extending between the bottom end and the open upper rim. The fluid dispensing system may further comprise a lid configured to connect to the open upper rim of the fluid container, and the lid may have a connector configured to connect to a paint spray gun. The fluid dispensing system may further comprise a container holder having a cavity configured to receive the fluid container therein. The container holder may have a bottom end, an upper rim, and a sidewall extending between the bottom end and the upper rim. The fluid dispensing system may be configured to dispense the fluid by a gravity feed mechanism.

Abstract: A mixing paddle is described comprising a first section (2) adapted for mixing a paint, and a second section (3) having at least one removing edge (4), wherein the removing edge (4) has a geometry complementary to a horizontal cross section (5, 6) of the first section (2), and wherein the second section (3) is detachably attached, and a corresponding method for removing excess paint from a mixing paddle is described.

Abstract: A lid (2) for a reservoir (1) to be connected to a liquid spraying device, comprising a ventilation hole (3); a flexible tube (4); and a valve (5), wherein the combination of the ventilation hole (3), the flexible tube (4), and the valve (5) forms a ventilation system which allows an air movement from the outside of the reservoir (1) via the ventilation system to the inside of the reservoir (1) while it blocks the movement of a liquid (6) from the inside of the reservoir (1) via the ventilation system to the outside of the reservoir (1).