Patent ID: 6082150
Filing Date: 2000-07-04
Classification: D06F

Abstract:
A system for cleaning a substrate using a pressurized fluid solvent, the system comprising:a pressurized vessel capable of withstanding pressures of at least about 800 pounds per square inch and having a chamber for containing the substrate to be cleaned and a volume of the pressurized fluid solvent;a primary flow line extending from and in fluid communication with the chamber, the primary flow line including a pump for continuously cycling a primary flow of the pressurized fluid solvent therethrough;at least one filter positioned along the primary flow line to continuously remove contaminants from the pressurized fluid solvent of the primary flow, the primary flow line configured to cycle the pressurized fluid solvent of the primary flow back to the chamber after passing through the filter;a secondary flow line extending from and in fluid communication with the chamber, the secondary flow line including an evaporator to evaporate a secondary flow of the pressurized fluid solvent directed through the secondary flow line into a vapor and to separate contaminants therefrom; anda condenser in fluid communication with the evaporator to liquify the vapor from the evaporator to create rejuvenated pressurized fluid solvent substantially free of contaminants, the condenser also in fluid communication with the chamber to redirect the rejuvenated pressurized fluid solvent to the chamber for further use.