The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Oct. 10, 2008
Jonathan N. Warren, Dearborn, MI (US);
Phillip J. Beauchamp, Warren, MI (US);
Finn Bergishagen, West Bloomfield, WI (US);
Denise A. Palumbo, Dearborn, MI (US);
Jonathan N. Warren, Dearborn, MI (US);
Phillip J. Beauchamp, Warren, MI (US);
Finn Bergishagen, West Bloomfield, WI (US);
Denise A. Palumbo, Dearborn, MI (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
The present invention is directed to a method of cleaning an interior surface of a fluid delivery system. The method comprises introducing a first liquid into the fluid delivery system and contacting the interior surface with the first liquid; forming a slurry by introducing a particulate into the first liquid and contacting the interior surface with the slurry; introducing a second liquid into the fluid delivery system and contacting the interior surface with the second liquid; and introducing a third liquid into the fluid delivery system and contacting the interior surface with the third liquid. The first liquid is substantially soluble or substantially insoluble in the second liquid, the second liquid is substantially insoluble in the third liquid, and the particulate is substantially insoluble in the first and second liquids and substantially soluble in the third liquid.