Patent ID: 7252187

Claim:
A horizontal conveyance device for conveying items back and forth throughout a substantially horizontal space, said horizontal conveyance device comprising: a lead screw, a saddle nut wherein said saddle nut has matching inside thread to said lead screw thread and thus surrounds said lead screw and is thereby capable of moving forward and backward along said lead screw, a substantially horizontal conveyor track system having a relatively rigid yet malleable and horizontal structure into which said lead screw is secured and which prohibits the saddle nut from rotating 360° about the lead screw, causing said saddle nut to move backward and forward through said space; a bi-directional power drive and electronics control box system wherein said bi-directional power drive provides power to engage via the use of a gear reducer to the lead screw and said electronic control box system provides control logic to drive said lead screw backward and forward and whereby said power drive and electronics control box system is powered from an extant power source, and a carrier system.