Back to results
US 7,604,702 B2Granted
Method, apparatus, and system for bi-solvent based cleaning of precision components
AssigneeCrest Ultrasonics Corp.
InventorsWayne L. Mouser, Russell Manchester, William Barrett, Fredrick Bergman
Life of this patent
Estimating the term…
Abstract
A bi-solvent cleaning system for cleaning precision components without the use of VOC solvents. The bi-solvent cleaning system provides for is a two mode operation for cleaning and rinsing precision components using VOC exempt solvents that is as effective as prior art VOC solvent based systems while subsequently allowing for recovery and reuse of a VOC exempt solvent.
Claims9
A method for cleaning a precision component comprising:
- cleaning a precision component by positioning the precision component within a cleaning tank filled with a first solvent comprising a soy based VOC exempt solvent for removing contaminants from the precision component;
- rinsing the precision component in a rinse tank filled with a second solvent comprising a VOC exempt solvent wherein any remaining amounts of the first solvent on the precision component are removed by the second solvent resulting so as to form a solvent mixture;
- and
- separating the solvent mixture into a first solvent portion and a second solvent portion in a recovery tank by cooling the solvent mixture such that the first solvent portion resides on top of the second solvent portion, said first solvent portion and second solvent portion being visually distinguishable by an unassisted eye, and wherein the first solvent portion can be removed from the recovery tank.
1 more element
Dependencies are inferred from the claim text.