Patent ID: 8490892

Claim:
A liquid supply assembly comprising: a container having a bottom wall; a lid having one or more lid components capable of connecting to (i) a liquid spraying device or (ii) an adapter capable of connecting to the liquid spraying device, the one or more lid components being positioned on an upper surface of the lid; a collapsible liner capable of fitting within the container; an air inlet in the container and suitable for connecting to an air supply for pressurizing the container; and one or more pressure relief areas within the container bottom wall; wherein the container, the lid, and the collapsible liner form a pressurizable assembly capable of withstanding a container pressure of at least about 69.0 kiloPascals (kPa) (10 pounds per square inch (psi)); and wherein the one or more pressure relief areas are initially closed but break open to the atmosphere in response to the pressure within the container exceeding a desired level causing the pressure within the container to drop.