Patent ID: 7815037

Claim:
A conveyor, comprising: an elongated lower slat mounted for back and forth endwise movement; an elongated upper slat above the lower slat, said upper slat having an end portion and a top; a support endwise of the end portion of the upper slat; a link having a first end that is connected to the support for pivotal movement about a first horizontal axis, and a second end that is connected to the upper slat for pivotal movement about a second horizontal axis, said link including a stop arm extending from the second horizontal axis into a position below the upper slat; upper and lower slide ramps between the upper and lower slats, said upper slide ramp being connected to the upper slat and said lower slide ramp being connected to the lower slat; said upper slide ramp having a sloping lower surface and said lower slide ramp having a sloping upper surface, said sloping upper and lower surfaces confronting each other and both sloping downwardly towards the link; wherein an endwise sliding movement of the lower slat towards the link will slide the lower slide ramp relatively along the upper slide ramp, causing the lower slide ramp to lift the upper slide ramp and the upper slat relative to the lower slide ramp and the lower slat; and wherein said upward movement of the upper slat relative to the lower slat will cause the link to pivot upwardly about the first axis until the stop arm on the link contacts the upper slat and stops further pivotal movement of the link about the first axis and stops further upward sliding movement of the upper slat relative to the lower slat.