Patent ID: 6056180
Filing Date: 2000-05-02
Classification: B41J,B65H,G03G

Abstract:
A utilization device for performing an operation to a web that is free of pin feed perforations comprising:a lower tractor pin feed section that receives web from a source;a utilization device element that performs an operation to the web;an upper tractor pin feed section that transfers web from the utilization device element;a drive roller located adjacent the lower tractor pin feed section that engages the web;a mark sensor that reads a selected mark that occurs at regular intervals upon the web;a controller that controls a rate of the drive roller in response to signals sent by the mark sensor so as to provide a desired drive rate of the drive roller;a differential and a differential drive motor interconnected with the controller for providing advance and retard motion to the drive roller; andwherein the utilization device includes a central drive motor and wherein the differential is located in line with the central drive motor and the central drive motor is interconnected with each of the upper tractor pin feed section, the lower tractor pin feed section and the drive roller through a central drive shalt.