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:
Apr. 11, 2006
Filed:
Feb. 20, 2002
Hans Schwade, Atlanta, GA (US);
M. Ishaq Jameel, Lawrenceville, GA (US);
Hans Schwade, Atlanta, GA (US);
M. Ishaq Jameel, Lawrenceville, GA (US);
Clyde Bergemann, Inc., Atlanta, GA (US);
Abstract
A method for controlling the positioning of a stream of pressurized fluid against a surface zone of a stream generator to clean contaminants. The coordinates of a plurality of points of the surface zone to be cleaned are first determined. The coordinates are measured with respect to a fixed coordinate system with origin point at the location where the lance water cannon penetrates the cannon wall of the steam generator. The determined boundary points are converted into corresponding angles with respect to the horizontal plane and the cannon wall. These angles are then used directly to control the position of the lance with respect to the fixed coordinate system. The stream of pressurized fluid is directed against the surface zone in a predetermined pattern by monitoring and controlling the angle of the lance through axial resolvers.