Patent ID: 6415911
Filing Date: 2002-07-09
Classification: B65G

Abstract:
A differential impulse conveyor for moving goods, comprising:a tray movable in a forward direction at a first speed and in a backward direction at a second speed greater than the first speed to move goods along the tray in a forward direction, the tray having a tray floor for supporting the goods thereon; a reversible drive motor having a rotating motor shaft; a drive connection between said motor shaft and said tray to move said tray in a forward direction upon rotation of said motor shaft in a forward direction, and to move said tray in a backward direction upon rotation of said motor shaft in an opposite backward direction, the rotational speed of said motor shaft in said backward direction being greater than the rotational speed of said motor shaft in said forward direction and an electronic controller for reversing the rotation of said reversible motor and for controlling the rotational speed of the motor shaft to rotate the motor shaft at a faster speed during rotation of said motor shaft in the backward direction than during rotation of said motor shaft in the opposed forward direction to move said tray in the backward direction at a faster speed than in the forward direction.