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:
Dec. 08, 2009
Filed:
Nov. 27, 2007
Applicants:
Jeffrey A. Sell, West Bloomfield, MI (US);
Bradley Gibson, Swartz Creek, MI (US);
Inventors:
Jeffrey A. Sell, West Bloomfield, MI (US);
Bradley Gibson, Swartz Creek, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/312 (2006.01); G01R 31/315 (2006.01); G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oxygen sensor readiness module comprises a voltage source, a current detection module, and a control module. The voltage source selectively produces a bias signal, which is applied to a sensing element of an oxygen sensor. The current detection module measures a pumping current of the oxygen sensor. The control module generates a readiness signal based upon a comparison of the pumping current with a pumping current threshold.