Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6205846 | Method of determining with great accuracy the rate of leakage from the case of an electrical apparatus | Jean-Pierre Dupraz | 2001-03-27 |
| 6064025 | Control means for electrical equipment, E.G. for a high-voltage circuit-breaker | — | 2000-05-16 |
| 6018133 | Low-compression puffer circuit-breaker | — | 2000-01-25 |
| 6013888 | Generator circuit breaker having a single mechanical control mechanism | — | 2000-01-11 |
| 5955716 | Interlock control for a circuit breaker and a disconnector | Jean-Michel Plat, Jean-Marc Willieme | 1999-09-21 |
| 5916397 | Method of manufacturing an insulator made of a composite material | — | 1999-06-29 |
| 5808257 | High-voltage gas-blast circuit-breaker | — | 1998-09-15 |
| 5756952 | Straight spring operating mechanism for high-voltage circuit-breakers | — | 1998-05-26 |
| 5753860 | Conductor bar for a metal-clad high voltage electrical apparatus | — | 1998-05-19 |
| 5742001 | Buried electrical transmission line equipped with a cooling device | — | 1998-04-21 |
| 5693873 | Method and a system for determining the density of an insulating gas in an electrical apparatus | Jean-Pierre Dupraz | 1997-12-02 |
| 5571989 | Gas-insulated high-tension line for long distances | Van Doan Pham, Rene Tixier, Marcel Guillen | 1996-11-05 |
| 5569840 | Screened electrical line control device | — | 1996-10-29 |
| 5530200 | Three-phase metal-clad electricity line, and method of manufacture | Rene Tixier | 1996-06-25 |
| 5512869 | Linear control apparatus for a circuit-breaker | — | 1996-04-30 |
| 5496965 | Line for conveying electrical power | Gilles Voisin, Rene Tixier | 1996-03-05 |
| 5438256 | Apparatus and method for measurement from the ground for high voltage overhead lines | Michel Collet | 1995-08-01 |
| 5396393 | Pumping station | Martin Motz | 1995-03-07 |
| 5384678 | Control and self-monitoring system, in particular for a multipole electrical apparatus such as a high tension circuit breaker | Gerard Ebersohl | 1995-01-24 |
| 5295207 | Optical apparatus for measuring current in a grounded metal-clad installation | Jean-Pierre Dupraz | 1994-03-15 |
| 5266758 | SF.sub.6 circuit breaker having an incorporated capacitor | Van Doan Pham, Joseph Martin | 1993-11-30 |
| 5170023 | Circuit breaker with varistor-assisted interruption | Van Doan Pham, Joseph Martin | 1992-12-08 |
| 5164559 | Circuit breaker with an incorporated varistor | Van Doan Pham, Joseph Martin | 1992-11-17 |
| 5151567 | Circuit breaker control apparatus | — | 1992-09-29 |
| 5126516 | Puffer-type medium or high tension circuit breaker | Denis Dufournet, Michel Perret | 1992-06-30 |