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:
Aug. 30, 2016
Filed:
Nov. 21, 2012
Applicant:
Western Digital Technologies, Inc., Irvine, CA (US);
Inventor:
John R. Gustafson, Los Gatos, CA (US);
Assignee:
Western Digital Technologies, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 3/00 (2006.01); G01M 3/22 (2006.01); G01M 3/20 (2006.01);
U.S. Cl.
CPC ...
G01M 3/226 (2013.01); G01M 3/202 (2013.01);
Abstract
A method to test for leakage of an enclosure of a hermetically sealed disk drive is disclosed. The method includes filling the disk drive enclosure with a gas mixture that includes a tracer gas. The tracer gas may comprise helium gas or hydrogen gas, and constitute between 1% and 10% of the gas mixture. The method includes hermetically sealing the disk drive enclosure. The method also includes testing for the presence of the tracer gas outside of the disk drive enclosure.