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:
Jan. 06, 2026
Filed:
Jul. 06, 2023
Lennox Industries Inc., Richardson, TX (US);
Thomas John Wolowicz, Allen, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
A method includes setting a desired cleaning time and desired air changes. A volume of a controlled space is determined. A total clean air volume to be delivered to the controlled space is determined based on the volume and the desired air changes. (a) A remaining clean air volume to be delivered to the controlled space is determined. (b) A remaining cleaning time is determined. (c) In response to determining that a ventilation unit is not present: a recirculated air flow rate is determined based on the remaining clean air volume and the remaining cleaning time, a blower flow rate is set to the determined recirculated air flow rate, the method waits for an idle time, and a delivered clean air volume already delivered to the controlled space is determined. Operations (a), (b), and (c) are repeated until the total clean air volume is delivered to the controlled space.