Patent ID: 9293282
Filing Date: 2016-03-22
CPC Classification: H01H

Claim Text:
1. A moving seal for a circuit breaker, said circuit breaker including a housing assembly and a number of pairs of separable contacts, said housing assembly defining a number of generally tubular pole chambers, wherein each pair of said separable contacts includes a stationary first contact and a movable second contact, wherein each second contact moves between an open, first position and a closed, second position, each pair of separable contacts disposed in an associated pole chamber, said moving seal comprising: a body, said moving seal body disposed in said pole chamber and disposed adjacent said number of pairs of separable contacts; said moving seal body including two lateral sides and a sealing portion, said sealing portion disposed between said lateral sidewalls and defining an arc creepage surface; said arc creepage surface disposed facing said separable contacts; wherein said arc creepage surface defines an extended surface; wherein said arc creepage surface includes a concave portion; said moving seal body includes an upper sidewall and a lower sidewall; and wherein said arc creepage surface concave portion is an arcuate surface that extends substantially between said moving seal body upper sidewall and said lower sidewall.