Patent ID: 8919669

Claim:
A paint sprayer comprising: a spray gun comprising: a housing; a paint pump mechanism within the housing; and a motor configured to actuate the paint pump mechanism; and a dual tube connection assembly comprising: a main body removably couplable to the spray gun; a coupler removably attached to a connector of the main body and having an inlet tube fitting configured to receive an inlet paint tube for providing an inlet paint path from a paint container; a return tube connection configured to receive a return paint tube for providing a return paint path to the paint container; and a valve mechanism retained at least partially within the main body by the coupler and comprising; a valve configured to allow a fluid to flow through the inlet paint tube in a first direction and restrict the fluid from flowing through the inlet paint tube in a second, opposite direction; and an annularly extending portion extending from the valve, the annularly extending portion having; a first surface directly engaging a surface of the connector of the main body; and a second surface directly contacting and forming a sealing engagement with a surface of the coupler to limit fluid flow around the valve mechanism.