Patents by Inventor Amy M. Opela

Amy M. Opela 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).

  • Overcoated transfer roller for transferring developed images from one surface to another
    Patent number: 5729810
    Abstract: An apparatus which transfers a developed image from a charge retentive surface to a copy sheet. The apparatus includes a transfer roller that is overcoated with an insulator and charged by either a brush, roller or a blade. The biased transfer roller is brought into contact with the back of a copy sheet thereby transferring charges that migrate through the copy sheet to enable toner transfer from the photoconductive surface to the copy sheet. A metal blade can be used to simultaneously charge and clean the transfer roller.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 17, 1998
    Assignee: Xerox Corporation
    Inventors: Richard F. Bergen, Amy M. Opela