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:
Aug. 07, 2018
Filed:
Nov. 30, 2012
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventors:
Yi Qu, Coppell, TX (US);
Bruce Perkins, Carrollton, TX (US);
Chris Mchugh, Plano, TX (US);
Mark Olsen, Carrollton, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 49/00 (2006.01); F25D 21/00 (2006.01); F25B 47/02 (2006.01); F25B 13/00 (2006.01);
U.S. Cl.
CPC ...
F25D 21/008 (2013.01); F25B 47/025 (2013.01); F25B 13/00 (2013.01); F25B 2600/01 (2013.01); F25B 2600/112 (2013.01); F25B 2700/2117 (2013.01); Y02B 30/743 (2013.01);
Abstract
One embodiment of the present disclosure comprises a method of managing defrost operations in HVAC systems. In one embodiment a primary defrost operation comprises allowing a cooling cycle of the heat pump and a secondary defrost operation comprises allowing fans of the heat pump to operate at a low speed.