Henry Zylstra

Person

Alburnett, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Earth leakage detection module with robust transient suppression
- Patent number 8,400,744
- Issue date Mar 19, 2013
- Schneider Electric USA, Inc.
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Portable remote racking device for a circuit breaker
- Patent number 8,395,065
- Issue date Mar 12, 2013
- Schneider Electric USA, Inc.
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current sensor for earth leakage module
- Patent number 8,238,066
- Issue date Aug 7, 2012
- Schneider Electric USA, Inc.
- Henry J. Zylstra
- G01 - MEASURING TESTING
Information Patent Grant
Quick responding instantaneous trip system
- Patent number 6,654,217
- Issue date Nov 25, 2003
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Compact coil assembly for transient voltage protection
- Patent number 5,519,368
- Issue date May 21, 1996
- Square D Company
- James A. Heise
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Plug-in power supply
- Patent number RE35190
- Issue date Mar 26, 1996
- Square D Company
- Henry J. Zylstra
- 363 - Electric power conversion systems
Information Patent Grant
Voltage-to-frequency squared circuit
- Patent number 5,019,936
- Issue date May 28, 1991
- Square D Company
- Henry J. Zylstra
- G01 - MEASURING TESTING
Information Patent Grant
Power supply incorporating circuit breaker and fault detection circuit
- Patent number 5,016,135
- Issue date May 14, 1991
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault-powered power supply
- Patent number 4,992,723
- Issue date Feb 12, 1991
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Loss of neutral or ground protection circuit
- Patent number 4,931,893
- Issue date Jun 5, 1990
- Square D Company
- Oliver Glennon
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Field installable electrical operator for a circuit breaker
- Patent number 4,912,380
- Issue date Mar 27, 1990
- Square D Company
- Henry J. Zylstra
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic control circuit for a bidirectional motor
- Patent number 4,910,443
- Issue date Mar 20, 1990
- Square D Company
- Henry J. Zylstra
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Plug-in power supply
- Patent number 4,901,219
- Issue date Feb 13, 1990
- Square D Company
- Kenneth W. Erickson
- G05 - CONTROLLING REGULATING
Information Patent Grant
Add-on ground fault module
- Patent number 4,897,756
- Issue date Jan 30, 1990
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High saturation three coil current transformer
- Patent number 4,746,891
- Issue date May 24, 1988
- Square D Company
- Henry J. Zylstra
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High level magnetic trip circuit
- Patent number 4,652,965
- Issue date Mar 24, 1987
- Square D Company
- Ronald D. Borrett
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Time delay undervoltage release
- Patent number 4,631,624
- Issue date Dec 23, 1986
- Square D Company
- Robert F. Dvorak
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Ground fault desensitization circuit for electronic breaker
- Patent number 4,538,194
- Issue date Aug 27, 1985
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic system for high amperage circuit interruption apparatus
- Patent number 4,486,803
- Issue date Dec 4, 1984
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Trip indicator assembly for electronic circuit breaker
- Patent number 4,466,042
- Issue date Aug 14, 1984
- Square D Company
- Henry J. Zylstra
- G01 - MEASURING TESTING
Information Patent Grant
Circuit breaker having an electronic fault sensing and trip initiat...
- Patent number 4,213,165
- Issue date Jul 15, 1980
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit breaker having an electronic fault sensing and trip initiat...
- Patent number 4,209,818
- Issue date Jun 24, 1980
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit breaker having an electronic fault sensing and trip initiat...
- Patent number 4,208,689
- Issue date Jun 17, 1980
- Square D Company
- Robert W. Dunham
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit breaker having an electronic fault sensing and trip initiat...
- Patent number 4,208,690
- Issue date Jun 17, 1980
- Square D Company
- James P. McGinnis
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit breaker having an electronic fault sensing and trip initiat...
- Patent number 4,208,693
- Issue date Jun 17, 1980
- Square D Company
- James W. Dickens
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Portable ground fault circuit interrupter
- Patent number 4,197,567
- Issue date Apr 8, 1980
- Square D Company
- Robert E. Dietz
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE REMOTE RACKING DEVICE FOR A CIRCUIT BREAKER
- Publication number 20120055765
- Publication date Mar 8, 2012
- SCHNEIDER ELECTRIC USA, INC.
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
EARTH LEAKAGE DETECTION MODULE WITH ROBUST TRANSIENT SUPPRESSION
- Publication number 20110286134
- Publication date Nov 24, 2011
- SCHNEIDER ELECTRIC USA, INC.
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CURRENT SENSOR FOR EARTH LEAKAGE MODULE
- Publication number 20110116197
- Publication date May 19, 2011
- Square D Company
- Henry J. Zylstra
- G01 - MEASURING TESTING
Information Patent Application
Quick responding instantaneous trip system
- Publication number 20020085330
- Publication date Jul 4, 2002
- Henry J. Zylstra
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Multiple ground fault trip function system and method for same
- Publication number 20020080535
- Publication date Jun 27, 2002
- David L. Swindler
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Henry Zylstra

Person

Patents Grantslast 30 patents

Earth leakage detection module with robust transient suppression

Portable remote racking device for a circuit breaker

Current sensor for earth leakage module

Quick responding instantaneous trip system

Compact coil assembly for transient voltage protection

Plug-in power supply

Voltage-to-frequency squared circuit

Power supply incorporating circuit breaker and fault detection circuit

Fault-powered power supply

Loss of neutral or ground protection circuit

Field installable electrical operator for a circuit breaker

Electronic control circuit for a bidirectional motor

Plug-in power supply

Add-on ground fault module

High saturation three coil current transformer

High level magnetic trip circuit

Time delay undervoltage release

Ground fault desensitization circuit for electronic breaker

Electronic system for high amperage circuit interruption apparatus

Trip indicator assembly for electronic circuit breaker

Circuit breaker having an electronic fault sensing and trip initiat...

Circuit breaker having an electronic fault sensing and trip initiat...

Circuit breaker having an electronic fault sensing and trip initiat...

Circuit breaker having an electronic fault sensing and trip initiat...

Circuit breaker having an electronic fault sensing and trip initiat...

Portable ground fault circuit interrupter

Patents Applicationslast 30 patents

PORTABLE REMOTE RACKING DEVICE FOR A CIRCUIT BREAKER

EARTH LEAKAGE DETECTION MODULE WITH ROBUST TRANSIENT SUPPRESSION

CURRENT SENSOR FOR EARTH LEAKAGE MODULE

Quick responding instantaneous trip system

Multiple ground fault trip function system and method for same