Patent ID: 6257725
Filing Date: 2001-07-10
Classification: G03B

Abstract:
A shutter assembly for a motion picture projector, the projector having a conveyor for moving the shutter assembly along a continuous path, the shutter assembly comprising:a plurality of truck bodies rigidly mounted to a conveyor and being oriented substantially transversely with respect to a direction of travel, each truck body comprising a pair of bearings positioned to advance along an associated raceway;a shutter mounting bracket secured about the truck bodies, the shutter mounting bracket including:an aperture through which a first truck bearing may extend, the aperture being sized so that the first truck is statically disposed within the shutter mounting bracket;an elongated slot through which a second truck bearing may extend, the second truck bearing being slidably disposed within the elongated slot to permit the second truck to move relative to the shutter mounting bracket to permit a linear distance between the first and second trucks to vary as the trucks move between straight and curved portions of a truck path; anda shutter mounted on the shutter mounting bracket, the shutter being configured to periodically block a light path of the projector when the shutter is moved across a projector aperture block.