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:
Jun. 27, 2023
Filed:
Sep. 13, 2021
Applicant:
Funai Electric Co., Ltd., Osaka, JP;
Inventors:
Steven W. Bergstedt, Lexington, KY (US);
Patricia A. Clore, Lexington, KY (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/07 (2006.01); G01R 27/22 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
G01N 27/07 (2013.01); B41J 2/175 (2013.01); G01R 27/22 (2013.01);
Abstract
A fluid dispensing system with a fluid cartridge having a fluid reservoir and an ejection head. The ejection head has fluid ejectors that are in fluid flow communication with the fluid reservoir. A fluid detection circuit is electrically connected to at least one of the fluid ejectors. The fluid detection circuit is configured to detect and characterize a fluid in the fluid ejector, where the fluid detection circuit characterizes the resistivity of the fluid by adjusting an ejector voltage of the at least one of the fluid ejectors.