David A. Fox

Person

Lima, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Overcurrent trip circuit
- Patent number 5,181,155
- Issue date Jan 19, 1993
- Mirza A. Beg
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Programmable inverse time delay circuit
- Patent number 5,073,724
- Issue date Dec 17, 1991
- Westinghouse Electric Corp.
- David A. Fox
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and circuit for controlling the frequency of an electronic i...
- Patent number 5,048,065
- Issue date Sep 10, 1991
- Westinghouse Electric Corp.
- Leland L. Kessler
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit and method for voltage regulation of electric power sources
- Patent number 5,017,857
- Issue date May 21, 1991
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Generator voltage regulation with non-linear compensation
- Patent number 4,988,941
- Issue date Jan 29, 1991
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC voltage sensing for voltage regulators
- Patent number 4,970,458
- Issue date Nov 13, 1990
- Westinghouse Electric Corp.
- David A. Fox
- G01 - MEASURING TESTING
Information Patent Grant
Current limited DC power controller
- Patent number 4,943,761
- Issue date Jul 24, 1990
- Westinghouse Electric Corp.
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Timing correction for square wave inverter power poles
- Patent number 4,941,075
- Issue date Jul 10, 1990
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Generator voltage regulator power circuit
- Patent number 4,933,623
- Issue date Jun 12, 1990
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for discharging DC filter capacitors
- Patent number 4,933,622
- Issue date Jun 12, 1990
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Single phase rectifier circuit
- Patent number 4,924,372
- Issue date May 8, 1990
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Position detector utilizing gray code format
- Patent number 4,901,072
- Issue date Feb 13, 1990
- Westinghouse Electric Corp.
- David A. Fox
- G01 - MEASURING TESTING
Information Patent Grant
Solid state power controller
- Patent number 4,864,214
- Issue date Sep 5, 1989
- Westinghouse Electric Corp.
- William W. Billings
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bi-directional DC power controller with fault protection
- Patent number 4,835,652
- Issue date May 30, 1989
- Westinghouse Electric Corp.
- William W. Billings
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for statically testing rotating rectifiers in br...
- Patent number 4,816,756
- Issue date Mar 28, 1989
- Westinghouse Electric Corp.
- David A. Fox
- G01 - MEASURING TESTING
Information Patent Grant
Method and circuit for voltage regulation of DC power sources
- Patent number 4,807,106
- Issue date Feb 21, 1989
- Westinghouse Electric Corp.
- Donal E. Baker
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Automatic paralleling of AC power sources
- Patent number 4,797,570
- Issue date Jan 10, 1989
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for synchronizing power sources in a parallel AC...
- Patent number 4,766,327
- Issue date Aug 23, 1988
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit and method for paralleling AC electrical power systems
- Patent number 4,754,161
- Issue date Jun 28, 1988
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Frequency control circuit
- Patent number 4,618,920
- Issue date Oct 21, 1986
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching time correction circuit for electronic inverters
- Patent number 4,617,622
- Issue date Oct 14, 1986
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical inverter with minority pole current limiting
- Patent number 4,608,626
- Issue date Aug 26, 1986
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Toroidal transformer with electrostatic shield
- Patent number 4,459,576
- Issue date Jul 10, 1984
- Westinghouse Electric Corp.
- David A. Fox
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Voltage regulator for aircraft generators
- Patent number 4,446,417
- Issue date May 1, 1984
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Optically isolated solid state relay
- Patent number 4,408,131
- Issue date Oct 4, 1983
- Westinghouse Electric Corp.
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Break-before-make solid state relay
- Patent number 4,408,137
- Issue date Oct 4, 1983
- Westinghouse Electric Corp.
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Direct current power controller
- Patent number 4,404,473
- Issue date Sep 13, 1983
- Westinghouse Electric Corp.
- David A. Fox
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-mode control logic circuit for solid state relays
- Patent number 4,188,547
- Issue date Feb 12, 1980
- Westinghouse Electric Corp.
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control circuit initiating conduction of an opto-isolator unit
- Patent number 4,086,503
- Issue date Apr 25, 1978
- Westinghouse Electric Corporation
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ramping circuit
- Patent number 4,029,972
- Issue date Jun 14, 1977
- Westinghouse Electric Corporation
- David A. Fox
- H03 - BASIC ELECTRONIC CIRCUITRY

David A. Fox

Person

Patents Grantslast 30 patents

Overcurrent trip circuit

Programmable inverse time delay circuit

Method and circuit for controlling the frequency of an electronic i...

Circuit and method for voltage regulation of electric power sources

Generator voltage regulation with non-linear compensation

AC voltage sensing for voltage regulators

Current limited DC power controller

Timing correction for square wave inverter power poles

Generator voltage regulator power circuit

Circuit and method for discharging DC filter capacitors

Single phase rectifier circuit

Position detector utilizing gray code format

Solid state power controller

Bi-directional DC power controller with fault protection

Circuit and method for statically testing rotating rectifiers in br...

Method and circuit for voltage regulation of DC power sources

Automatic paralleling of AC power sources

Circuit and method for synchronizing power sources in a parallel AC...

Circuit and method for paralleling AC electrical power systems

Frequency control circuit

Switching time correction circuit for electronic inverters

Electrical inverter with minority pole current limiting

Toroidal transformer with electrostatic shield

Voltage regulator for aircraft generators

Optically isolated solid state relay

Break-before-make solid state relay

Direct current power controller

Multi-mode control logic circuit for solid state relays

Control circuit initiating conduction of an opto-isolator unit

Ramping circuit