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. 23, 2010
Filed:
May. 08, 2004
Oyelayo O. Ajayi, Oswego, IL (US);
Jeffrey G. Hershberger, Berwyn, IL (US);
Oyelayo O. Ajayi, Oswego, IL (US);
Jeffrey G. Hershberger, Berwyn, IL (US);
Uchicago Argonne, LLC, Chicago, IL (US);
Abstract
An improved process for the creation or formation of nanocrystalline layers on substrates' surfaces is provided. The process involves 'prescuffing' the surface of a substrate such as a metal by allowing friction to occur on the surface by a load-bearing entity making rubbing contact and moving along and on the substrate's surface. The 'prescuffing' action is terminated when the coefficient of friction between the surface and the noise is rising significantly. Often, the significant rise in the coefficient of friction is signaled by a change in pitch of the scuffing action sound emanating from the buffeted surface. The “prescuffing” gives rise to a harder and smoother surface which withstands better any inadequate lubrication that may take place when the “prescuffed” surface is contacted by other surfaces.