Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8400744 | Earth leakage detection module with robust transient suppression | Steven M. Meehleder | 2013-03-19 |
| 8395065 | Portable remote racking device for a circuit breaker | Jesil Surendra Pujara, Gary A. Volesky, Robert F. Dvorak | 2013-03-12 |
| 8238066 | Current sensor for earth leakage module | — | 2012-08-07 |
| 6654217 | Quick responding instantaneous trip system | Charles D. Bettis, David Joseph Dunne | 2003-11-25 |
| 5519368 | Compact coil assembly for transient voltage protection | James Arthur Heise, Gary A. Volesky, Andy A. Haun | 1996-05-21 |
| RE35190 | Plug-in power supply | Kenneth W. Erickson | 1996-03-26 |
| 5019936 | Voltage-to-frequency squared circuit | Steven J. Flock | 1991-05-28 |
| 5016135 | Power supply incorporating circuit breaker and fault detection circuit | — | 1991-05-14 |
| 4992723 | Fault-powered power supply | Steven J. Flock | 1991-02-12 |
| 4931893 | Loss of neutral or ground protection circuit | Oliver Glennon | 1990-06-05 |
| 4912380 | Field installable electrical operator for a circuit breaker | Darrell P. Ophaug, Ronald J. Etscheidt | 1990-03-27 |
| 4910443 | Electronic control circuit for a bidirectional motor | Ronald J. Etscheidt | 1990-03-20 |
| 4901219 | Plug-in power supply | Kenneth W. Erickson | 1990-02-13 |
| 4897756 | Add-on ground fault module | — | 1990-01-30 |
| 4746891 | High saturation three coil current transformer | — | 1988-05-24 |
| 4652965 | High level magnetic trip circuit | Ronald D. Borrett | 1987-03-24 |
| 4631624 | Time delay undervoltage release | Robert F. Dvorak, Harley W. Jansen | 1986-12-23 |
| 4538194 | Ground fault desensitization circuit for electronic breaker | Harley W. Jansen | 1985-08-27 |
| 4486803 | Electronic system for high amperage circuit interruption apparatus | — | 1984-12-04 |
| 4466042 | Trip indicator assembly for electronic circuit breaker | Donald R. Venzke | 1984-08-14 |
| 4213165 | Circuit breaker having an electronic fault sensing and trip initiating unit | Harley W. Jansen | 1980-07-15 |
| 4209818 | Circuit breaker having an electronic fault sensing and trip initiating unit | Ronald D. Borrett | 1980-06-24 |
| 4208689 | Circuit breaker having an electronic fault sensing and trip initiating unit | Robert W. Dunham, James P. McGinnis | 1980-06-17 |
| 4208690 | Circuit breaker having an electronic fault sensing and trip initiating unit | James P. McGinnis | 1980-06-17 |
| 4208693 | Circuit breaker having an electronic fault sensing and trip initiating unit | James W. Dickens, James P. McGinnis | 1980-06-17 |