Lid with ventilation system
A lid, for attachment to a container holding a liquid for use with a liquid spraying device, a vent duct defining a vent conduit extending through a lid body from a duct inlet end to a duct outlet end. A valve is disposed in the vent duct and is configured to permit air flow in a first direction, from the duct inlet end to the duct outlet end, while preventing liquid flow in a second direction opposite the first direction. A cap extends over the duct inlet end, the cap including a cap interior surface defining an interior air chamber, communicating with the vent conduit, and at least a first passage, communicating between the interior air chamber and a first cap inlet. A tube is coupled to the duct outlet end and has a tube outlet end fluidly communicating with an interior of the container.
1. A lid for attachment to a container holding a liquid for use with a liquid spraying device, the lid comprising:
a lid body defining an exterior surface and an interior surface;
an adapter extending from the exterior surface of the lid body and configured to releasably couple with the liquid spraying device, the adapter defining a liquid conduit extending through the lid body;
a vent duct defining an vent conduit extending through the lid body, the vent duct including a duct inlet end extending from the exterior surface of the lid body and a duct outlet end extending from the interior surface of the lid body;
a valve disposed in the vent duct and configured to permit air flow in a first direction, from the duct inlet end to the duct outlet end, while preventing liquid flow in a second direction opposite the first direction;
a cap extending over the duct inlet end, the cap including a cap interior surface defining an interior air chamber, communicating with the vent conduit, and at least a first passage, communicating between the interior air chamber and a first cap inlet; and
a tube coupled to the duct outlet end.
2. The lid of claim 1 , in which the tube includes a tube inlet end, coupled to the duct outlet end, and a tube outlet end opposite the tube inlet end, and in which the tube is configured to maintain the tube outlet end adjacent a bottom end of the container.
3. The lid of claim 1 , in which the cap interior surface further defines a second passage, communicating between the interior air chamber and a second cap inlet, and a third passage, communicating between the interior air chamber and a third cap inlet.
4. The lid of claim 1 , in which the duct inlet end defines a valve chamber, and in which the valve is disposed in the valve chamber.
5. The lid of claim 4 , in which the valve comprises a duckbill valve.
6. The lid of claim 1 , in which the cap includes a cap end wall extending over the duct inlet end and joined to a cap side wall.
7. The lid of claim 6 , in which the cap side wall engages an exterior surface of the vent duct.
8. The lid of claim 6 , in which the cap side wall is sized to frictionally engage the exterior surface of the vent duct, thereby retaining the valve within the vent duct.
9. Apparatus for holding a liquid with a liquid spraying device, the apparatus comprising:
a container; and
a lid releasably coupled to the container, the lid including:
a lid body defining an exterior surface and an interior surface;
an adapter extending from the exterior surface of the lid body and configured to releasably couple with the liquid spraying device, the adapter defining a liquid conduit extending through the lid body;
a vent duct defining an vent conduit extending through the lid body, the vent duct including a duct inlet end extending from the exterior surface of the lid body and a duct outlet end extending from the interior surface of the lid body;
a valve disposed in the vent duct and configured to permit air flow in a first direction, from the duct inlet end to the duct outlet end, while preventing liquid flow in a second direction opposite the first direction;
a cap extending over the duct inlet end, the cap including a cap interior surface defining an interior air chamber, communicating with the vent conduit, and at least a first passage, communicating between the interior air chamber and a first cap inlet; and
a tube coupled to the duct outlet end.
10. The apparatus of claim 9 , in which the tube includes a tube inlet end, coupled to the duct outlet end, and a tube outlet end opposite the tube inlet end, and in which the tube is configured to maintain the tube outlet end adjacent a bottom end of the container.
11. The apparatus of claim 9 , in which the cap interior surface further defines a second passage, communicating between the interior air chamber and a second cap inlet, and a third passage, communicating between the interior air chamber and a third cap inlet.
12. The apparatus of claim 9 , in which the duct inlet end defines a valve chamber, and in which the valve is disposed in the valve chamber.
13. The apparatus of claim 12 , in which the valve comprises a duckbill valve.
14. The apparatus of claim 9 , in which the cap includes a cap end wall extending over the duct inlet end and joined to a cap side wall.
15. The apparatus of claim 14 , in which the cap side wall engages an exterior surface of the vent duct.
16. The apparatus of claim 14 , in which the cap side wall is sized to frictionally engage the exterior surface of the vent duct, thereby retaining the valve within the vent duct.