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.

Date of Patent:
Nov. 28, 2023

Filed:

May. 28, 2021
Applicant:

Delta T, Llc, Lexington, KY (US);

Inventors:

Eric Evans, Lexington, KY (US);

Andrew Koukis, Lexington, KY (US);

Pete Maley, Lexington, KY (US);

Christian Taber, Minneapolis, MN (US);

Assignee:

DELTA T, LLC, Lexington, KY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 27/00 (2006.01); F04D 25/08 (2006.01); F24F 11/46 (2018.01); F24F 11/77 (2018.01);
U.S. Cl.
CPC ...
F04D 27/004 (2013.01); F04D 25/088 (2013.01); F24F 11/46 (2018.01); F24F 11/77 (2018.01);
Abstract

An apparatus includes a fan and a controller configured for controlling the fan to operate in a first mode limiting rotational speed of the fan within a first range of speeds between a first minimum speed and a first maximum speed. The controller is further configured to control the fan to operate in a second mode limiting rotational speed of the fan within a second range of speeds between a second minimum speed and a second maximum speed. The second range of speeds may be narrower than the first range of speeds. Related methods are also disclosed.


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