John Giang Tran

Address:

627 Blue Sky Dr, Arlington, TX 76002

VIN:

4T4BF3EK5AR054926

Make:

TOYOTA

Model:

CAMRY

Year:

2010

US Patent:

20050262857, Dec 1, 2005

Filed:

May 25, 2004

Appl. No.:

10/853326

Inventors:

Peter Hrejsa - The Colony TX, US
Floyd Jeffrey Mangum - Copper Canyon TX, US
Mark Olsen - Carrollton TX, US
Joe Powell - Garland TX, US
Gregory Spencer - Richardson TX, US
John Tran - The Colony TX, US
Thomas Wolowicz - Allen TX, US

International Classification:

F25B029/00
F25B013/00

US Classification:

062160000

Abstract:

An apparatus for checking conditioning mode of a heat pump system includes: (a) a temperature sensing device coupled with the heat pump system at a sensing locus; (b) a comparing device coupled with the temperature sensing device and configured for comparing a first temperature sensed by the temperature sensing device at a first time with a second temperature sensed by the temperature sensing device at a second time to determine an extant conditioning mode; the extant conditioning mode being a first conditioning mode when the second temperature is greater than the first temperature; the extant conditioning mode being a second conditioning mode when the second temperature is less than the first temperature.

US Patent:

20120085113, Apr 12, 2012

Filed:

Oct 11, 2010

Appl. No.:

12/901766

Inventors:

John Tran - The Colony TX, US
Mark Olsen - Carrollton TX, US
Jeff Mangum - Argyle TX, US

Assignee:

Lennox Industries Inc. - Richardson TX

International Classification:

F25D 17/06
F25D 17/04
B23P 15/26

US Classification:

62186, 29890035, 62507

Abstract:

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.

US Patent:

20190309999, Oct 10, 2019

Filed:

Apr 9, 2018

Appl. No.:

15/948049

Inventors:

- Richardson TX, US
John TRAN - The Colony TX, US

Assignee:

Lennox Industries Inc. - Richardson TX

International Classification:

F25B 39/02
F24F 3/14
F24F 11/49
F24F 11/52
F24F 11/65
F24F 11/84
F25B 39/04
F25B 41/00
F25B 41/06

Abstract:

An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.

US Patent:

20180187916, Jul 5, 2018

Filed:

Mar 1, 2018

Appl. No.:

15/909159

Inventors:

- Richardson TX, US
John Tran - The Colony TX, US
Rakesh Goel - Irving TX, US
Clay Toombs - Carrollton TX, US

Assignee:

Lennox Industries LLC - Richardson TX

International Classification:

F24F 11/83
F24F 11/30
F25B 49/02
F24F 1/38
F24F 110/00
F24F 110/12

Abstract:

A method of controlling a heating, ventilation and air-conditioning (HVAC) system includes measuring an ambient temperature and determining whether the ambient temperature is below a threshold temperature value. Responsive to a determination that the ambient temperature is below the threshold temperature value, measuring a condenser-fan cycle time of the HVAC system and setting a speed of the compressor based on the measured condenser-fan cycle time.

US Patent:

20170227246, Aug 10, 2017

Filed:

Feb 4, 2016

Appl. No.:

15/015220

Inventors:

- Richardson TX, US
John Tran - The Colony TX, US
Rakesh Goel - Carrollton TX, US
Clay Toombs - Carrollton TX, US

Assignee:

Lennox Industries LLC - Richardson TX

International Classification:

F24F 11/00
F25B 49/02
F24F 1/38
F25B 39/00

Abstract:

A method of controlling a heating, ventilation and air-conditioning (HVAC) system includes measuring an ambient temperature and determining whether the ambient temperature is below a threshold temperature value. Responsive to a determination that the ambient temperature is below the threshold temperature value, measuring a condenser-fan cycle time of the HVAC system and setting a speed of the compressor based on the measured condenser-fan cycle time.

US Patent:

20170176048, Jun 22, 2017

Filed:

Dec 21, 2015

Appl. No.:

14/976354

Inventors:

- Richardson TX, US
Eric PEREZ - Hickory Creek TX, US
Bryan SMITH - Carrollton TX, US
John TRAN - The Colony TX, US

Assignee:

Lennox Industries Inc. - Richardson TX

International Classification:

F24H 3/08
F24H 3/02
F24H 3/00

Abstract:

A modulating heating system includes a tube heat exchanger having a plurality of burners, a combustion air blower (CAB) having an exhaust vent connected with the plurality of burners, the CAB operable at a first speed and a second speed, a first valve connecting a fuel source to a first subset of the plurality of burners, and a second valve connecting a fuel source to a second subset of the plurality of burners, wherein the first and second valves each have a low fire rate and a high fire rate. The heat exchanger is operable through multiple heat stages at a constant fuel-air mixture.

US Patent:

20170176049, Jun 22, 2017

Filed:

Dec 21, 2015

Appl. No.:

14/976485

Inventors:

- Richardson TX, US
Steven SCHNEIDER - Plano TX, US
Bryan SMITH - Carrollton TX, US
John TRAN - The Colony TX, US

Assignee:

Lennox Industries Inc. - Richardson TX

International Classification:

F24H 9/20

Abstract:

A heating system retrofitted to be operable through multiple heat stages at a constant fuel-air mixture includes a tube heat exchanger having a plurality of burners, a combustion air blower (CAB) having an exhaust vent connected with the plurality of burners, the CAB operable at a first speed and a second speed, a first valve connecting a fuel source to a first subset of the plurality of burners, and a second valve connecting a fuel source to a second subset of the plurality of burners.