Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10660416 | Wheel arrangement for a suitcase | Tillman Paul, Carsten Kulcke, Max Toma | 2020-05-26 |
| 8044318 | Interrupting chamber of a circuit-breaker having two compression volumes | Denis Dufournet, Dan Penache, Michel Tresy | 2011-10-25 |
| 7964816 | Interrupting chamber having two compression chambers | Denis Dufournet | 2011-06-21 |
| 7563161 | Control device for actuating at least two items of switchgear in co-ordinated manner, one of which items performs interruption in a vacuum | — | 2009-07-21 |
| 7199324 | High-voltage hybrid circuit-breaker | — | 2007-04-03 |
| 6849819 | High-voltage or medium-voltage switch device with combined vacuum and gas breaking | Michel Tresy, Denis Dufournet | 2005-02-01 |
| 6744001 | High-voltage circuit-breaker including a valve for decompressing a thermal blast chamber | Denis Dufournet | 2004-06-01 |
| 6624371 | Circuit-breaker including a channel for emptying the piston-driven compression chamber | Denis Dufournet, Wolfgang Grieshaber | 2003-09-23 |
| 6593538 | High-voltage interrupter device having combined vacuum and gas interruption | Denis Dufournet | 2003-07-15 |
| 6489581 | Arc-blasting switch possessing a break chamber with low gas compression and reciprocating piston movement | Joel Ozil | 2002-12-03 |
| 6483064 | Insulating blast nozzle for a circuit breaker | Denis Dufournet, Wolfgang Grieshaber | 2002-11-19 |
| 6342685 | Double movement high voltage circuit breaker | — | 2002-01-29 |
| 6239399 | Interrupter with a resistor insertion system having a long insertion time | — | 2001-05-29 |
| 5959274 | Operating mechanism for high-voltage circuit-breakers | — | 1999-09-28 |
| 5955715 | Circuit breaker having a closure resistance | — | 1999-09-21 |
| 5939692 | Gas-filled interrupter with compressible thermal expansion chamber | — | 1999-08-17 |
| 5877465 | High-tension circuit-breaker with damper | — | 1999-03-02 |
| 5859399 | Circuit breaker having semi-moving piston | — | 1999-01-12 |
| 5841614 | High voltage circuit breaker with insertion of resistance on closure | — | 1998-11-24 |
| 5742017 | Circuit-breaker provided with a closure resistance having an insertion assembly | — | 1998-04-21 |
| 5668360 | Circuit-breaker having two interrupting chambers per pole with drive mechanism and drive rods isolating insert capacitors | Denis Dufournet, Joseph Martin | 1997-09-16 |
| 5587571 | Combined-action puffer circuit-breaker | — | 1996-12-24 |
| 5567923 | Puffer circuit-breaker having a pneumatically-locked semi-moving piston | — | 1996-10-22 |
| 5373131 | Puffer circuit-breaker with two concentric interrupting chambers | Denis Dufournet | 1994-12-13 |
| 5328393 | Annular electrical contact system, in particular for a circuit-breaker | Renaud David | 1994-07-12 |