Inventors:
David Johnson - Greensburg PA, US
Daniel Schiffbauer - Uniontown PA, US
International Classification:
H01H 33/88
Abstract:
A circuit breaker assembly includes a puffer chamber having a nozzle extending from an end, a vent located at or near the end of the puffer chamber, and a vent seal movably positioned over the vent. The vent seal prevents gas from escaping through the vent when the puffer chamber is under pressure, and it permits gas to enter the puffer chamber when the puffer chamber is not under pressure.