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:
Nov. 06, 2000
Filed:
Dec. 01, 1998
Alastair Cameron, Cambridge, GB;
David A Cusac, East Peoria, IL (US);
Marcel R Hanard, II, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Apparatus is disclosed for initiating fatigue related damage on a circumferential surface of a rotatable member resultant from application of a tensile stress condition and a superimposed contact stress condition. The apparatus includes structure for supporting the member for axial rotation, structure for applying a load to the member during the rotation thereof to create a bending moment at a predetermined axial location along the member and a resultant tensile stress condition on a circumferential surface thereof at a corresponding location. The apparatus further includes structure for creating a contact stress on the circumferential surface of the member at the predetermined location.