Patent ID: 7154061

Claim:
An interrupter assembly for a circuit breaker, comprising: a first and a second stationary contact; a moving contact assembly comprising a substantially U-shaped conductor, a first moving contact mounted on a first end of the conductor, and a second moving contact mounted on a second end of the conductor, the moving contact assembly being movable between a first position wherein the first and second moving contacts are in electrical contact with the respective first and second stationary contacts, and a second position wherein the first and second moving contacts are electrically isolated from the respective first and second stationary contacts; and a body having a first and a second half each having a plurality of recesses formed therein, wherein the recesses formed in the first half face corresponding ones of the recesses formed in the second half to form chambers for holding insulating fluid when the first and the second halves are mated, the first and second halves each comprise a plurality of ribs, each of the ribs has a recess formed therein for receiving a corresponding one of the first and second moving contacts, each of the ribs of the first half faces a corresponding one of the ribs of the second half when the first and second halves are mated so that ribs encircle the first and second moving contacts and substantially isolate adjacent ones of the chambers, and the body receives the moving contact assembly so that the first and the second moving contacts are drawn through respective ones of the chambers and the ribs as the moving contact assembly moves from the first to the second position.