Patent ID: 7770718

Claim:
A conveyor comprising: a conveyor belt having a top surface and a bottom surface; a plurality of rollers coupled to the conveyor belt, the rollers extending above the top surface and below the bottom surface of the conveyor belt so as to be configured to engage a roller-engagement surface below the conveyor belt and form an object support plane above the conveyor belt, engagement between the rollers and the roller-engagement surface causing the rollers to rotate and move an object supported by the rollers along the conveyor belt; and a flight coupled to the conveyor belt, the flight including a projection and a cam, the cam being configured to engage a cam-engagement surface below the conveyor belt to impart a moment on the flight that causes the projection to pivot from a retracted position in which the projection is substantially parallel to the object support plane to an extended position in which the projection is substantially perpendicular to the object support plane and halts movement of objects along the conveyor belt.