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:
Jul. 21, 2015
Filed:
Jun. 20, 2011
Applicant:
Trudy Benjamin, Portland, OR (US);
Inventor:
Trudy Benjamin, Portland, 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 2/045 (2006.01); G01F 23/26 (2006.01);
U.S. Cl.
CPC ...
B41J 2/125 (2013.01); B41J 2/0451 (2013.01); B41J 2/0458 (2013.01); G01F 23/261 (2013.01);
Abstract
An assembly includes an election chamber, an ejection member, and a capacitance detection unit. The ejection chamber holds a fluid. The ejection member is disposed in the ejection chamber to selectively receive a predetermined amount of power from a power supply line. The capacitance detection unit detects art amount of capacitance.