Circuit breaker with terminal bushings having dynamic seal
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United States of America Patent
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Sep 24, 2024
Grant Date -
Oct 26, 2023
app pub date -
Aug 23, 2022
filing date -
Apr 21, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit breaker includes a frame having an interior compartment and an outer surface and a bushing opening. A circuit interrupter is mounted within the interior compartment. A terminal bushing is received within the bushing opening and has a lower terminal end extending into the housing and electrically connected to the circuit interrupter. An outer flange forms a bushing seat positioned adjacent the outer surface. An upper gasket is received against the outer flange. A seal pocket is formed by a bushing opening, upper gasket and outer surface of the terminal bushing. A dynamic seal is contained within the seal pocket and compressed an amount sufficient to provide elasticity and a compression height for dynamic loading of the upper gasket.
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