John A Haug

US Patent:

51381141, Aug 11, 1992

Filed:

Sep 27, 1990

Appl. No.:

7/413346

Inventors:

Henry F. Breit - Attleboro MA
Premkumar R. Hingorany - Louisville CO
John A. Haug - North Attleboro MA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01L 2302
B23K 3102

US Classification:

174 524

Abstract:

A method of forming enclosures for microwave and hybrid devices and the enclosure itself wherein the metals to be joined are thin (i. e. , less than 40 mils thick) and/or thick (up to several inches) and wherein metallurgical hermetic bonds are provided between adjacent metals which are generally difficult to bond to each other and may be bonded by a select number of bonding processes.

US Patent:

54350581, Jul 25, 1995

Filed:

Jul 17, 1992

Appl. No.:

7/914131

Inventors:

Henry F. Breit - Attleboro MA
Premkumar R. Hingorany - Louisville CO
John A. Haug - North Attleboro MA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01R 900
H01L 2302

US Classification:

29854

Abstract:

A method of forming enclosures for microwave and hybrid devices and the enclosure itself wherein the metals to be joined are thin (i. e. , less than 40 mils thick) and/or thick (up to several inches) and wherein metallurgical hermetic bonds are provided between adjacent metals which are generally difficult to bond to each other and may be bonded by a select number of bonding processes.

US Patent:

44867000, Dec 4, 1984

Filed:

May 9, 1983

Appl. No.:

6/492538

Inventors:

Keith W. Kawate - North Attleboro MA
John A. Haug - North Attleboro MA

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H02P 144

US Classification:

318781

Abstract:

A starting circuit for single phase electric motors including both split-phase and capacitor start motors includes a gate controlled solid state switch serially connected to the start winding of the motor. Rectified reference pulses from a pulse transformer are generated to turn on a first transistor to provide gating current for the solid state switch. Initially, when the motor is energized at zero rpm, the pulses are received at the switch after the start winding current passes through the zero current level to gate the switch to conduct each half cycle and energize the start winding however as the motor speeds up, the pulses are received earlier and earlier relative to the start winding current zero cross over until at a selected speed the pulses are received at the switch prior to the start winding current zero cross over with the result that the switch is no longer gated conductive. When this occurs the voltage across the switch goes high. This voltage is rectified and received at the base of a second transistor adapted to shunt the pulses from the pulse transformer away from the first transistor to lock out the switch with the start winding deenergized.

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.