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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.:

US 9310089 B1

PDFFull Text
Date of Patent:
Apr. 12, 2016

Filed:

Jan. 27, 2010

Variable speed motor control method and apparatus

Applicants:

Mark G. Beste, Grapevine, TX (US);

Brian Hudson, Carrollton, TX (US);

Roger C. Hundt, Carrollton, TX (US);

David Omlor, Flower Mound, TX (US);

Stephen A. Walter, Flower Mound, TX (US);

David M. Wynnick, Lewisville, TX (US);

Inventors:

Mark G. Beste, Grapevine, TX (US);

Brian Hudson, Carrollton, TX (US);

Roger C. Hundt, Carrollton, TX (US);

David Omlor, Flower Mound, TX (US);

Stephen A. Walter, Flower Mound, TX (US);

David M. Wynnick, Lewisville, TX (US);

Assignee:

Lennox Industries Inc., Richardson, TX (US);

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Carlos Ortiz Rodriguez

Assistant Examiner:

Jennifer L Norton

Int. Cl.
CPC ...
F24F 11/00 (2006.01); G01D 4/00 (2006.01); G01R 21/00 (2006.01); G01R 21/127 (2006.01); G01R 21/133 (2006.01); G05B 13/00 (2006.01); G05B 13/02 (2006.01); G05B 15/02 (2006.01); G05B 19/042 (2006.01); G05D 23/13 (2006.01); G06Q 50/06 (2012.01); H01R 12/50 (2011.01); H01R 13/645 (2006.01); H02J 3/14 (2006.01); H02P 25/04 (2006.01);
U.S. Cl.
CPC ...
F24F 11/0009 (2013.01); G01D 4/00 (2013.01); G01R 21/00 (2013.01); G01R 21/127 (2013.01); G01R 21/133 (2013.01); G01R 21/1335 (2013.01); G05B 13/00 (2013.01); G05B 13/02 (2013.01); G05B 15/02 (2013.01); G05B 19/042 (2013.01); G05D 23/1393 (2013.01); G06Q 50/06 (2013.01); H01R 13/6456 (2013.01); H01R 23/7073 (2013.01); H02P 25/04 (2013.01); G05B 2219/2614 (2013.01); H02J 2003/143 (2013.01); H02J 2003/146 (2013.01); Y02B 70/3216 (2013.01); Y02B 70/3225 (2013.01); Y02B 70/3233 (2013.01); Y02B 70/3241 (2013.01); Y02B 70/3275 (2013.01); Y04S 20/221 (2013.01); Y04S 20/222 (2013.01); Y04S 20/224 (2013.01); Y10T 29/49 (2015.01); Y10T 29/4935 (2015.01); Y10T 29/49117 (2015.01); Y10T 29/49147 (2015.01); Y10T 29/49359 (2015.01); Y10T 29/49826 (2015.01); Y10T 307/713 (2015.04);
Abstract

An HVAC unit includes an HVAC motor and a system controller. The HVAC motor is coupled to a motor controller. The motor controller is configured to receive a command signal bearing a digitally encoded operating level of the HVAC motor. The system controller is coupled to the motor controller, and is configured to transmit the command signal to the motor controller. The system controller modulates the command signal with the digitally encoded operating level in response to a service demand.

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