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. 24, 2009
Filed:
Mar. 02, 2004
Troy Michael Herndon, San Jose, CA (US);
Jeffry Arnold Leblanc, Aptos, CA (US);
Robert Alan Nottingham, Santa Cruz, CA (US);
Mohamed Mizanur Rahman, San Jose, CA (US);
Troy Michael Herndon, San Jose, CA (US);
Jeffry Arnold LeBlanc, Aptos, CA (US);
Robert Alan Nottingham, Santa Cruz, CA (US);
Mohamed Mizanur Rahman, San Jose, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A method of designing an improved bearing system is provided. In one embodiment, the method for designing a fluid dynamic bearing system includes determining a first stability ratio for a first journal bearing configuration. The method further includes determining a second stability ratio for a second journal bearing configuration. In one embodiment, the first configuration has two sub-journal bearings and the second configuration has three sub-journal bearings. The two stability ratios may then be compared to determine whether adding a sub-journal increases the stability ratio of the bearing system.