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:
Feb. 24, 2026
Filed:
Jun. 16, 2022
Lennox Industries Inc., Richardson, TX (US);
Ben Hobson, Dallas, TX (US);
Hongbing Lian, Plano, TX (US);
Der-Kai Hung, Dallas, TX (US);
Steve Mersh, Murfreesboro, TN (US);
Lin Lan, Colleyville, TX (US);
Shahn Markarian, Dallas, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
An HVAC system includes a first indoor heat exchanger coupled to an outdoor heat exchanger and disposed in a first zone. A second indoor heat exchanger is coupled to the outdoor heat exchanger and disposed in a second zone. A compressor is coupled to the outdoor heat exchanger, the first indoor heat exchanger, and the second indoor heat exchanger. A first circulation fan is positioned to circulate air around the first indoor heat exchanger and a second circulation fan is positioned to circulate air around the second indoor heat exchanger. A zone controller is coupled to the first indoor heat exchanger and configured to measure a temperature in the first zone, compare the measured temperature to a setpoint temperature of the first zone, and responsive to a difference between the measured temperature and the setpoint temperature, adjust a speed of the first circulation fan independent the second circulation fan.