Vent system for a gravity feed spray device

摘要

A system (10) is provided for venting a container used to supply a liquid to a spray coating device. The system may include a container cover (144) having a liquid conduit (146) configured to extend into a liquid container, at least one wall surrounding a buffer chamber (150) configured to separate the interior volume of the container from the exterior environment, a first vent (156) conduit that extends into the buffer chamber, a second vent (158) conduit that extends from the buffer chamber to the liquid container, and at least one check valve (168) coupled to either conduit.