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:
Apr. 11, 2023
Filed:
Aug. 07, 2020
Applicant:
Stmicroelectronics (Research & Development) Limited, Marlow, GB;
Inventor:
Jeffrey M. Raynor, Edinburgh, GB;
Assignee:
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, Marlow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B 12/00 (2018.01); B41J 2/165 (2006.01); B33Y 50/00 (2015.01); B29C 64/386 (2017.01); B29C 64/209 (2017.01);
U.S. Cl.
CPC ...
B05B 12/004 (2013.01); B29C 64/209 (2017.08); B29C 64/386 (2017.08); B33Y 50/00 (2014.12); B41J 2/16579 (2013.01);
Abstract
The present disclosure is directed to a fluidic ejection device configured to detect whether one or more nozzles of the fluidic ejection device is in a normal state, a blocked nozzle state, or an accumulated fluid state. The fluidic ejection device includes an optical blockage detector having a light emitting device configured to emit a light signal, and a light sensor configured to detect the light signal. The optical blockage detector detects the normal state, the blocked nozzle state, and the accumulated fluid state based on the detected light signal.