Patents by Inventor Christopher L. Yaeger

Christopher L. Yaeger 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).

  • Patent number: 9523947
    Abstract: An imaging device includes a fuser assembly including a heat transfer member and a backup member positioned to engage the heat transfer member thereby defining a fusing nip therewith. A motor is coupled to the backup member for rotating the backup member. A controller coupled to the fuser assembly controls the motor using time-based commutation for a period of time to rotate the backup member at a slower speed relative to a speed for performing a toner fusing operation. In memory, at least one lookup table is stored having entries which, when sequentially accessed by the controller during the time-based commutation, are used to generate one or more drive signals for the motor to cause current flowing through windings of the motor to have a substantially sinusoidal waveform.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 20, 2016
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: David Ross Cutts, Aaron Michael Lambert, Jason W Lawrence, Kevin Dean Schoedinger, Ryan Matthew Smith, Christopher L. Yaeger