Patent ID: 6938751

Claim:
An improved vertical lift assembly for use with a conveyor, comprising: a stationary member; a raisable member mounted on the stationary member for vertical movement between a first recessed position and a second intercepting position; an intercepting means mounted on the raisable member; a lift means for selectively raising the raisable member between the first and second positions; and at least three of a hinge for joining in planar relationship the raisable member to the stationary member, each hinge comprising a first stationary joint affixed to the stationary member, a second joint affixed to the raisable member and a third joint intermediate between and in communication with both the first joint and the second joint; wherein in the first position, an upper engagement surface of the intercepting means is in a recessed position below a transfer surface of a conveyor and out of potential engagement with an object on the conveyor transfer surface; and wherein in the second position, the upper engagement surface is in a raised position, above the transfer surface of the conveyor for selected engagement with the object on the transfer surface.