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:
Nov. 06, 2018
Filed:
Jun. 20, 2011
Applicants:
Steven Hoglund, Minneapolis, MN (US);
Reed Bisson, Minnetonka, MN (US);
Inventors:
Steven Hoglund, Minneapolis, MN (US);
Reed Bisson, Minnetonka, MN (US);
Assignee:
Honeywell International Inc., Morris Plains, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 23/19 (2006.01); F24F 11/30 (2018.01); B01D 46/00 (2006.01); F24F 11/39 (2018.01);
U.S. Cl.
CPC ...
F24F 11/30 (2018.01); B01D 46/0086 (2013.01); F24F 11/39 (2018.01);
Abstract
Methods and systems for monitoring an air filter installed in an HVAC system may include operating the HVAC system in an air filter monitoring mode such as, for example, a fan only mode, and measuring, for example, a differential pressure across the air filter when the HVAC system is operating in the air filter monitoring mode. The method may include evaluating a status of the air filter using, for example, the measured differential pressure value, and in some cases, display the status on a display of an HVAC controller.