Patents by Inventor Ryan J. Carlson

Ryan J. Carlson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Web tensioning device with plural control inputs
    Patent number: 7438251
    Abstract: A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: October 21, 2008
    Assignee: Specialty Systems Advanced Machinery, Inc.
    Inventors: Patrick C. St. Germain, Gerald K. Langreck, Vernon C. Wickman, Ryan J. Carlson
  • Web tensioning device with plural control inputs
    Publication number: 20040262361
    Abstract: A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.
    Type: Application
    Filed: November 19, 2003
    Publication date: December 30, 2004
    Inventors: Patrick C. St. Germain, Gerald K. Langreck, Vernon C. Wickman, Ryan J. Carlson