Patent ID: 7201179
Filing Date: 2007-04-10
Classification: G05D,Y10T

Abstract:
1. A modular fluid supply system comprising: a plurality of container packs, each container pack including at least one container that contains a fluid mixture of at least two different fluid components; a fluid delivery line in fluid communication with the containers of the packs, the fluid delivery line being configured to deliver fluid mixtures from the containers to a tool that utilizes the fluid mixtures; and a controller configured to selectively and automatically control the flow of the fluid mixture from each container pack to the tool, wherein the controller is configured to communicate with a liquid supply source and to selectively and automatically control the flow of the fluid mixture from each container pack to the tool based at least in part upon information communicated to the controller from the liquid supply source, wherein the liquid supply source includes a first vessel including a first fluid component and a second fluid vessel including a second fluid component, and the system further comprises: at least one mixing unit configured to receive the first and second fluid components from the first and second vessels, to generate a fluid mixture comprising a selected concentration of each of the first and second fluid components, and to deliver the generated fluid mixture to the tool, wherein the system includes first and second mixing units configured to separately and independently receive the first and second fluid components from the first and second vessels, and the controller is configured to communicate with the first and second vessels to selectively and automatically alternate the flow of the first and second fluid components from the first and second vessels to one of the first and second mixing units.