Web feed roller and drive control system thereof
Patent 5524805 Issued on June 11, 1996. Estimated Expiration Date: 
June 11, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 11, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1994404 2224128 3469751 3490672 3678313 3749429 3806012 Web tension control Method and apparatus for accurately controlling the position of a film transport device Clutch and multiple speed capstan tape drive mechanism and tape position indicator for tape transport InventorsAssigneeApplicationNo. 996874 filed on 12/28/1992US Classes:226/108, PLURAL MATERIAL-MOVING MEANS101/425, CLEANING ATTACHMENTS226/188With drive meansExaminersPrimary: Stodola, Daniel P.Attorney, Agent or FirmForeign Patent References
International ClassB41F 013/02Foreign Application Priority Data1988-06-14 JPAbstractA web feed roller is driven by a compact and simple web feed roller drive device included in the web feed roller. The web feed roller comprises a support shaft, a cylindrical hollow member rotatably supported on the support shaft, a stator provided with an electrically conductive member and fixed on the support shaft, a rotor fixed on the cylindrical hollow member to face with the stator, and an electrical connecting member connected to the conductive member of the stator. The web feed roller is electrically connected to a drive control system comprising a speed control device to control driving speed of the web feed roller, and a signal generating device for outputting a speed signal representing an actual speed of the web feed roller into the speed control device.Other References
Field of SearchWith drive meansDetector means To regulate longitudinal movement of material Registration Of continuously moving material By means to vary speed of material momentarily By means to vary speed of feed roll By ancillary power source PLURAL MATERIAL-MOVING MEANS With means to independently vary mover speed Continuous feed from serial sequentially operated feeders Feeding or delivering Cylinder-registering mechanisms Cleaners CLEANING ATTACHMENTS | |
