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:
Mar. 30, 2021
Filed:
Sep. 08, 2016
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventor:
Tyler Kapp, Vancouver, WA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/28 (2006.01); B41F 23/04 (2006.01); F26B 21/10 (2006.01); B41J 11/00 (2006.01); F26B 21/12 (2006.01); B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
B41F 23/04 (2013.01); B41F 23/0466 (2013.01); B41J 11/002 (2013.01); B41J 29/38 (2013.01); F26B 21/10 (2013.01); F26B 21/12 (2013.01);
Abstract
A circuit includes a pulse generator to generate an output pulse in response to a signal representing rotation of a fan. A timing relationship between output pulses represents speed of the fan. A filter circuit converts the output pulse to a direct current (DC) voltage signal proportional to the speed of the fan. A monitor circuit monitors the DC voltage signal with respect to a predetermined threshold and generates a control signal that disables a printer dryer if the DC signal does not satisfy the predetermined threshold.