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| Number | Title | Issue Date |
| 6917269 | Low-voltage circuit breaker with an electric arc extinction system An electric arc extinction chamber system, especially for low-voltage circuit breakers of very high nominal current intensities, wherein parallel electric arc extinction chamber inserts are provided in a housing extending over the entire width of a pole-face arc. Th... | 07/12/2005 |
| 5834724 | Circuit breaker with grid support mounted over stationary contactor In a circuit breaker, a grid support (12) having a pair of side walls (12a) which are confronted with each other, is provided by molding resin, and arc-extinction grids (6) are inserted into grooves formed in the side walls (12a). The grid support is fixe... | 11/10/1998 |
| 4866226 | Multi-phase circuit breaker employing arc extinguishing apparatus In a circuit breaker, an arc is produced between a pair of switchable contact members when these contact members are opened due to overcurrent. An arc extinguishing apparatus is employed to extinguish an arc produced between the opened contact members. Th... | 09/12/1989 |
| 4743720 | Current limiting circuit interrupter A circuit interrupter includes an arc extinction assembly for magnetically driving or blowing out an arc formed between a stationary contact and a movable contact. The assembly comprises a pair of coaxial windings which are disposed in proximity to the co... | 05/10/1988 |
| 4453055 | Louvered arc chute A "U" shaped arc chute, formed in a single piece stamping, with louvered openings at the center section. The louvers cool and safely direct gases, generated during short circuit operation of a circuit breaker, away from the metal front of circuit breaker ... | 06/05/1984 |
| 4320820 | Section insulator with improved arc control An improved trolley system section insulator having a main support insulator, end support insulators attached to trolley wires and an intermediate runner member. The runner member is formed of two spaced conductive portions which are attached to the main ... | 03/23/1982 |
| 4295021 | Electromagnetic arc extinction apparatus for switchgear An electromagnetic arc extinction apparatus for switchgear comprises an arc chamber made of an electrically insulating material and having an axial channel. There are two electrodes arranged in axial relationship to the axis of the arc chamber and adapted... | 10/13/1981 |
| 4247746 | Electric circuit breaker In the or each pole of an electric circuit breaker, the or each moving contact arm is mounted. by a pivot pin, upon a carrier, in such a manner as to permit lost motion between the arm and the carrier, the arm being spring-loaded towards an operative posi... | 01/27/1981 |
