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:
Feb. 07, 2006
Filed:
Jun. 13, 2003
Applicant:
Henry Peter Offer, Los Gatos, CA (US);
Inventor:
Henry Peter Offer, Los Gatos, CA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 41/00 (2006.01); C21D 10/00 (2006.01); B05B 7/06 (2006.01); B24B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mechanical transducer induces liquid cavitation, causing pressure waves in a liquid which are applied against a metal surface to afford localized elastic and plastic tensile microstrain. The pressure waves alter the surface tensile stresses in the treated metal by reducing the tensile stresses or forming surface compressive stresses. A boot is provided about the operating face of the transducer for confining a liquid through which compression waves are generated and applied to the metal surface, the boot sealing about the transducer and the surface undergoing treatment.