Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723940 | Encapsulated magnetically actuated vacuum interrupter with integral bushing connector | Guenter Leonhardt | 2004-04-20 |
| 6271467 | Adjustable HV/LV protective throat | Keith Hemeyer, David A. Reinke | 2001-08-07 |
| 6140572 | Transformer tank with detachable cabinet interface | — | 2000-10-31 |
| 5721406 | Arc-resistant enclosure employing arc-quenching contact disconnect and method for avoiding arcing in the enclosure | Leo E. Blom | 1998-02-24 |
| 5661280 | Combination of a gas-filled interrupter and oil-filled transformer | Arthur P. Kuss, Daniel H. Hickman | 1997-08-26 |
| 4901182 | Electrical transformer component mounting assembly | — | 1990-02-13 |
| 4834257 | Reinforced wall structure for a transformer tank | John Winfred HATFIELD | 1989-05-30 |
| 4743996 | Electrical distribution apparatus having fused draw-out surge arrester | — | 1988-05-10 |
| 4679113 | Electrical distribution apparatus having draw-out surge arrester | Julian Scott, James A. Grace | 1987-07-07 |