Patents by Inventor Jeff Mangum
Jeff Mangum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11754328Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: GrantFiled: January 26, 2023Date of Patent: September 12, 2023Assignee: Lennox Industries IncInventors: Eric Berg, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
-
Publication number: 20230175751Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: ApplicationFiled: January 26, 2023Publication date: June 8, 2023Applicant: Lennox Industries IncInventors: ERIC BERG, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
-
Patent number: 11592225Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: GrantFiled: November 24, 2020Date of Patent: February 28, 2023Assignee: Lennox Industries Inc.Inventors: Eric Berg, Wenqian Liu, Umesh Gokhale, Srini Natarajan, Jeff Mangum
-
Publication number: 20220163247Abstract: A method of mitigating liquid-refrigerant migration includes comparing a requested compressor speed of a variable-speed compressor to a pre-defined threshold and, responsive to a determination that the requested compressor speed is greater than the pre-defined threshold, operating the variable-speed compressor at a first compressor speed that is less than the requested compressor speed.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Applicant: Lennox Industries Inc.Inventors: Eric BERG, Wenqian LIU, Umesh GOKHALE, Srini NATARAJAN, Jeff MANGUM
-
Patent number: 10775070Abstract: A system and method are described that help in alleviating charge imbalance issues, especially in HVAC systems that are operable in both heating and cooling modes. In various embodiments a compensator is attached to the liquid line of an outdoor heat exchanger. A heater is attached to the compensator. During cooling operations the heater is turned on to help drive refrigerant out of the compensator. During heating operations the heater is turned off, allowing excess refrigerant to migrate to the compensator and alleviate high pressure in the system.Type: GrantFiled: June 23, 2017Date of Patent: September 15, 2020Assignee: Lennox Industries Inc.Inventors: Tim Brizendine, Jeff Mangum, Bruce Perkins
-
Patent number: 10352611Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: GrantFiled: October 26, 2017Date of Patent: July 16, 2019Assignee: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Patent number: 10208995Abstract: An air conditioning system includes a compressor housing and a motor having fan blades rotatably coupled thereto and located within the compressor housing. The motor has a rotation sensor associated with it that is configured to sense a rotation of the fan blades. The system also includes a controller coupled to the motor that is configured to increase a torque of the motor when the rotation sensor indicates that the fan blades are not rotating after an on-command signal is received by the motor.Type: GrantFiled: February 20, 2017Date of Patent: February 19, 2019Assignee: Lennox Industries Inc.Inventor: Jeff Mangum
-
Publication number: 20180372354Abstract: A system and method are described that help in alleviating charge imbalance issues, especially in HVAC systems that are operable in both heating and cooling modes. In various embodiments a compensator is attached to the liquid line of an outdoor heat exchanger. A heater is attached to the compensator. During cooling operations the heater is turned on to help drive refrigerant out of the compensator. During heating operations the heater is turned off, allowing excess refrigerant to migrate to the compensator and alleviate high pressure in the system.Type: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Applicant: Lennox Industries Inc.Inventors: Tim Brizendine, Jeff Mangum, Bruce Perkins
-
Publication number: 20180045453Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: ApplicationFiled: October 26, 2017Publication date: February 15, 2018Applicant: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Patent number: 9803911Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: GrantFiled: March 21, 2017Date of Patent: October 31, 2017Assignee: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Publication number: 20170191732Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: ApplicationFiled: March 21, 2017Publication date: July 6, 2017Applicant: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Publication number: 20170159985Abstract: One aspect provides an air conditioning system that includes a compressor housing, a motor having fan blades rotatably coupled thereto and located within the compressor housing. The motor has a rotation sensor associated with it that is configured to sense a rotation of the fan blades. This embodiment further comprises a controller coupled to the motor and is configured to increase a torque of the motor when the rotation sensor indicates that the fan blades are not rotating after an on command signal is received by the motor.Type: ApplicationFiled: February 20, 2017Publication date: June 8, 2017Applicant: Lennox Industries Inc.Inventor: Jeff Mangum
-
Patent number: 9605889Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: GrantFiled: May 13, 2016Date of Patent: March 28, 2017Assignee: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Patent number: 9599383Abstract: One aspect provides an air conditioning system that includes a compressor housing, a motor having fan blades rotatably coupled thereto and located within the compressor housing. The motor has a rotation sensor associated with it that is configured to sense a rotation of the fan blades. This embodiment further comprises a controller coupled to the motor and is configured to increase a torque of the motor when the rotation sensor indicates that the fan blades are not rotating after an on command signal is received by the motor.Type: GrantFiled: August 24, 2010Date of Patent: March 21, 2017Assignee: Lennox Industries Inc.Inventor: Jeff Mangum
-
Patent number: 9476600Abstract: An air conditioning system includes an exterior housing, and a motor having fan blades rotatably coupled thereto located within the exterior housing. The air conditioning system further includes a controller coupled to the motor and configured to, based upon climate conditions proximate the exterior housing, alternate between an ON cycle during which the fan blades are rotated and an OFF cycle during which the fan blades are not rotated.Type: GrantFiled: October 11, 2010Date of Patent: October 25, 2016Assignee: Lennox Industries Inc.Inventors: John Tran, Mark Olsen, Jeff Mangum
-
Publication number: 20160258668Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: ApplicationFiled: May 13, 2016Publication date: September 8, 2016Applicant: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Patent number: 9341405Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: GrantFiled: November 30, 2012Date of Patent: May 17, 2016Assignee: Lennox Industries Inc.Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Publication number: 20140150477Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Inventors: Yi Qu, H. Gene Havard, Jon Douglas, Jeff Mangum
-
Publication number: 20120085113Abstract: One aspect of the disclosure provides an air conditioning system. The air conditioning system, in this embodiment, includes an exterior housing, and a motor having fan blades rotatably coupled thereto located within the exterior housing. The air conditioning system, in this embodiment, further includes a controller coupled to the motor and configured to rotate the fan blades based upon climate conditions proximate the exterior housing.Type: ApplicationFiled: October 11, 2010Publication date: April 12, 2012Applicant: Lennox Industries Inc.Inventors: John Tran, Mark Olsen, Jeff Mangum
-
Publication number: 20120047931Abstract: One aspect provides an air conditioning system, comprising a compressor housing, a motor having fan blades rotatably coupled thereto and located within the compressor housing. The motor has a rotation sensor associated with it that is configured to sense a rotation of the fan blades. This embodiment further comprises a controller coupled to the motor and is configured to increase a torque of the motor when the rotation sensor indicates that the fan blades are not rotating after an on command signal is received by the motor.Type: ApplicationFiled: August 24, 2010Publication date: March 1, 2012Applicant: Lennox Industries Inc.Inventor: Jeff Mangum