Patent ID: 7922591

Claim:
A clutch assembly for a UV module, comprising: a shutter shaft with a flange, said flange having a plurality of radially positioned flange detents; a shutter drive arm including a drive pin, a drive arm cavity, and a receiver slot opening into the drive arm cavity, said drive pin disposable in a drive slot of a shutter end cap; a clutch plate disposed in a clutch plate cavity and having a tab disposed in said receiver slot and a plurality of clutch plate detents; a plurality of balls, each of said balls extending from one of said flange detents and partially disposable in one of said clutch plate detents; a clutch thrust washer; a spring assembly exerting a bias against said clutch plate and said thrust washer; and means for holding said washer in place on said shutter shaft, said shutter shaft extending through said shutter drive arm, said clutch plate, and said clutch thrust washer.