Youn H Ting

US Patent:

58064400, Sep 15, 1998

Filed:

May 20, 1996

Appl. No.:

8/651009

Inventors:

Mitchell R. Rowlette - Berea KY
Youn H. Ting - Lexington KY
Walter H. Bailey - Versailles KY
Ronald E. Garnett - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G05D 706

US Classification:

110162

Abstract:

A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.

US Patent:

50348485, Jul 23, 1991

Filed:

Dec 19, 1989

Appl. No.:

7/451326

Inventors:

Mitchell R. Rowlette - Berea KY
Werner Strasser - Lexington KY
Youn H. Ting - Lexington KY
Tim H. McMains - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G01L 912

US Classification:

361283

Abstract:

Differentially connected capacitive sensors are mechanically coupled with the flexible capacitor plate of one sensor coupled to the source of pressure to be measured, the flexible capacitor plate of the other sensor coupled to ambient pressure. In a second embodiment, inaccuracies due to forces on the flexible plate are minimized by providing a housing with a tapered inner wall, an O-ring and a support to apply a radial load to the sensor due to clamping action from the tapered housing against the O-ring to provide a seal for the pressure sensing chamber. In a further embodiment, the cost of fabrication of the pressure transducer is minimized by providing the housing as a one piece cup. The electronics are mounted on the exterior surface of the low pressure side of the ceramic capacitor pressure sensing element and sealed in thereat by potting with an epoxy. In addition, an electrical pin connector from the electronics and a vent to the low pressure surface of the movable plate are secured in the potting material and extend externally thereof.

US Patent:

45918201, May 27, 1986

Filed:

Nov 13, 1984

Appl. No.:

6/670182

Inventors:

Vicki V. Ruszczyk - Lexington KY
Youn H. Ting - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01H 6102
H01H 3752

US Classification:

337107

Abstract:

A housing has a switch chamber in which an electric switch is placed and a recess in which is received a snap acting, thermally responsive disc which actuates and deactuates the switch upon snapping from one configuration to another. A drop in thermal biasing assembly used to modify the operating temperature of the disc has a pair of cylindrical film type resistors electrically connected in parallel circuit relation and physically connected to a pair of connectors. An assembly having resistors of a rating chosen for a particular application is dropped into the recess before the disc is assembled, the connectors sliding into matching bores formed in the housing. The connectors are attached to suitable terminals and the disc is then placed over the thermal biasing assembly to provide a multiple temperature operating thermostat.

US Patent:

55245560, Jun 11, 1996

Filed:

Jun 9, 1995

Appl. No.:

8/489274

Inventors:

Mitchell R. Rowlette - Berea KY
Youn H. Ting - Lexington KY
Walter H. Bailey - Versailles KY
Ronald E. Garnett - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G05D 706

US Classification:

110162

Abstract:

A gas fired furnace system (10) has a controller (14) controlling the supply of gas through a gas valve (12) and air for combustion by means of an induced air draft fan (28), ignition of the gas by means of ignitor (22), the delivery of heated air from a heat exchanger (20) by means of an air blower (34) in response to signals from a thermostat (42). A selected constant flow of air for combustion is provided by controlling the speed of the motor driving the induced motor fan (28) despite changes which may occur in back pressure. Induced draft fan motor parameters proportional to motor torque and motor speed are read on an ongoing basis and inputted to controller (14) which computes a desired voltage and compares that with referenced data stored in the controller memory and makes corrections to the speed of the induced draft fan motor to maintain the constant air flow. The motor speed and motor torque are also monitored to ensure that they are within selected limits indicative of safe operation and responsive to this input energization of a relay (KM1) is controlled to deenergize the gas valve and ignition.

US Patent:

47542519, Jun 28, 1988

Filed:

Nov 3, 1987

Appl. No.:

7/116102

Inventors:

Youn H. Ting - Lexington KY
Ronald W. Brown - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01H 6102
H01H 3752

US Classification:

337107

Abstract:

A housing has a switch chamber in which an electric switch is placed and a recess in which is received a snap acting, thermally responsive disc which actuates and deactuates the switch upon snapping from one configuration to another. A thermal biasing assembly used to modify the operating temperature of the disc has a pair of cylindrical film type resistors electrically connected in parallel circuit relation and physically connected to a pair of rivets. Resistors of a rating chosen for a particular application are dropped into the recess with the leads of the resistors received in bores provided in the housing. A rivet is then inserted into each bore making good electrical connection with the leads without welding by deforming them a selected amount. The rivets are attached to suitable terminals and the disc is then placed over the thermal biasing assembly to provide a multiple temperature operating thermostat.

US Patent:

43876919, Jun 14, 1983

Filed:

Nov 7, 1980

Appl. No.:

6/204965

Inventors:

Leo Marcoux - Rehoboth MA
Youn Ting - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

F02M 3100

US Classification:

123557

Abstract:

A fuel filter system for a diesel engine has filter means mounted in a housing so that diesel fuel flows through the filter as it passes to the engine and has self-regulating electrical resistance heater means mounted in the housing so that, particularly when the engine is started at low ambient temperatures, the fuel flows directly over the contacts, terminals and heater elements of the heater means for elevating the temperature of the fuel as it passes through the filter without risk of over heating the fuel, thereby to safely deter clogging of the filter by paraffin or other fuel components which may solidify in the fuel at relatively low engine starting temperatures.

US Patent:

51210940, Jun 9, 1992

Filed:

Aug 8, 1991

Appl. No.:

7/742131

Inventors:

Youn H. Ting - Lexington KY
Werner Strasser - Lexington KY
Richard T. Gordon - Versailles KY
John T. Hancock - Versailles KY
Bryan C. Jansen - Lexington KY
John A. Haug - North Attleboro MA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01H 3700
H01H 3752
H01H 3540

US Classification:

337 2

Abstract:

An electric switch is shown which is responsive separately to two different conditions, i. e. temperature and pressure. The switch includes a temperature sensing disc and a pressure sensing disc both coupled through several alternate motion transfer arrangements to the movable electrical contact of the switch. Several structures are shown for mounting a switch on a surface so that the pressure sensing disc is exposed to fluid pressure and the temperature sensing disc is thermally coupled to the surface.

US Patent:

46460519, Feb 24, 1987

Filed:

Nov 27, 1985

Appl. No.:

6/802489

Inventors:

Vicki V. Ruszczyk - Lexington KY
Youn H. Ting - Lexington KY

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01H 6102
H01H 3752

US Classification:

337107

Abstract:

A housing has a switch chamber in which an electric switch is placed and a recess in which is received a snap acting, thermally responsive disc which actuates and deactuates the switch upon snapping from one configuration to another. A drop in thermal biasing assembly used to modify the operating temperature of the disc has a pair of cylindrical film type resistors electrically connected in parallel circuit relation and physically connected to a pair of connectors. An assembly having resistors of a rating chosen for a particular application is dropped into the recess before the disc is assembled, the connectors sliding into matching bores formed in the housing. The connectors are attached to suitable teminals and the disc is then placed over the thermal biasing assembly to provide a multiple temperature operating thermostat.