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| Number | Title | Issue Date |
| 7265311 | Arc chamber barrier with interlocking top for circuit breaker An arc chamber barrier for a circuit breaker is provided. The arc chamber barrier has a body with a first interlock component that is structured to engage a second interlock component disposed in the circuit breaker primary cover. The arc chamber barrier body is fur... | 09/04/2007 |
| 5780800 | Circuit breaker contact arm and spring shield An arc isolation shield for molded case circuit breakers is inserted between the circuit breaker case and cover and attached to one leg of the operating cradle. The knee of the circuit breaker moveable contact arm contacts the bottom of the shield and mov... | 07/14/1998 |
| 5206614 | Line conductor gasket A molded gasket for a line conductor in a circuit breaker acts as a gas seal to prevent ionizing gases resulting from a circuit interruption from flashing over and causing phase-to-phase and phase-to-ground faults. The molded gasket includes provisions fo... | 04/27/1993 |
| 4511772 | Arc extinguishing structure for electrical switching device An arc extinguishing structure for a circuit breaker (2) wherein an arc chute is provided with a pair of transverse barrier plates (38) spaced apart to provide a centrally located opening (40) and spaced away from an upstanding wall (4a) of the breaker ho... | 04/16/1985 |
| 4484045 | Molded case circuit breaker having improved arc resistant properties Molded case circuit breakers having increased short circuit current ratings contain a dual contact blade arm assembly and an arc shield wherein the operating mechanism is shielded from the arc blast which occurs during contact arcing. The arc blast shield... | 11/20/1984 |
| 4367448 | Direct current electromagnetic contactor A direct current electromagnetic contactor has three pairs of separable contacts each comprised of stationary and movable contacts. An electromagnetic device effects movement of the movable contacts between open and closed positions relative to the statio... | 01/04/1983 |
| 4019005 | Multi-pole circuit breaker with baffle shield venting A baffle assembly covering a vent opening in a molded case circuit breaker housing is constructed of two identical platelike elements having integral face protrusions. These elements are stacked in face-to-face relationship with their protrusions in engag... | 04/19/1977 |
