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:
Oct. 05, 2010
Filed:
Oct. 12, 2006
Applicant:
Paul S. Prevey, Iii, Cincinnati, OH (US);
Inventor:
Paul S. Prevey, III, Cincinnati, OH (US);
Assignee:
Surface Technology Holdings Ltd., Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21D 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and an apparatus for performing the method of inducing compressive residual stress in blading members integrally formed with a rotor. The method includes using a caliper-type burnishing tool such that the caliper arms of the tool are contoured and oriented for placing the burnishing elements on opposite sides of the blading member to be treated. The blading member is burnished to introduce a pre-determined pattern of residual compressive stresses in a selected area of the blade.