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:
Sep. 27, 2016
Filed:
Jul. 27, 2011
Applicants:
Andrew L. Van Brocklin, Corvallis, OR (US);
Paul A. Liebert, Corvallis, OR (US);
Adam L. Ghozeil, Corvallis, OR (US);
Scott A. Linn, Corallis, OR (US);
Inventors:
Andrew L. Van Brocklin, Corvallis, OR (US);
Paul A. Liebert, Corvallis, OR (US);
Adam L. Ghozeil, Corvallis, OR (US);
Scott A. Linn, Corallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/195 (2006.01); B41J 29/393 (2006.01); B41J 2/125 (2006.01); B41J 2/175 (2006.01); B41J 2/045 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/125 (2013.01); B41J 2/0451 (2013.01); B41J 2/0458 (2013.01); B41J 2/04555 (2013.01); B41J 2/14153 (2013.01); B41J 2/17566 (2013.01);
Abstract
In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.