Patent ID: 8648270

Claim:
A rotary blade carrier assembly for an interrupter module of a modular multiple pole circuit breaker, comprising a) a blade carrier, the blade carrier being cylindrical and having first and second opposing circular end surfaces and a curved cylindrical surface between the two end surfaces; and the blade carrier having drive pin through-holes passing longitudinally through the blade carrier cylinder, and b) an antifriction disc having a circular top plate having drive pin through-holes matching the relative positions of the blade carrier drive pin through-holes, the drive pin through-holes each located on an arc portion segment of the circular top plate, the top plate having a perpendicular rim wall connected thereto, the rim wall connected to at least one of the arc portion segments including the drive pin through-holes; c) the top plate of the antifriction disc being placed adjacent one of the end surfaces of the blade carrier with the rim wall slidably fitting over the curved cylindrical surface of the blade carrier.