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. 08, 2022
Filed:
Jan. 22, 2021
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventor:
Der-Kai Hung, Dallas, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); F25B 5/00 (2006.01); F25B 13/00 (2006.01); F25B 41/20 (2021.01); F25B 29/00 (2006.01); F25B 41/39 (2021.01); F25B 41/385 (2021.01);
U.S. Cl.
CPC ...
F25B 49/02 (2013.01); F25B 5/00 (2013.01); F25B 13/00 (2013.01); F25B 41/20 (2021.01); F25B 29/003 (2013.01); F25B 41/385 (2021.01); F25B 41/39 (2021.01); F25B 2313/007 (2013.01); F25B 2313/0253 (2013.01); F25B 2313/0254 (2013.01); F25B 2313/0294 (2013.01); F25B 2313/02743 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/07 (2013.01); Y02B 30/70 (2013.01);
Abstract
A system comprising a compressor, a first valve coupled to the compressor and to a first coil, a first expansion valve coupled to the first coil, and a second expansion valve. The second expansion valve coupled to a second coil. A second valve is coupled to the second coil and the compressor. A third valve is coupled to the compressor and a third coil. In response to receiving a heating demand that is below a threshold heating demand, a controller induces an artificial heating demand.