Patents by Inventor Thomas F. Hayne

Thomas F. Hayne 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).

  • Charging apparatus
    Patent number: 3944356
    Abstract: An apparatus adapted to charge an image bearing member to a substantially uniform potential. The apparatus controls the area of the surface charged on the image bearing member so that it corresponds substantially in size to that of a sheet of support material arranged to have a copy of an original document reproduced thereon.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: March 16, 1976
    Assignee: Xerox Corporation
    Inventor: Thomas F. Hayne
  • Corona generator cleaning apparatus
    Patent number: 3942006
    Abstract: A corona generating apparatus in which the coronode wires and grid wires thereof are cleaned to remove particles therefrom. A wiper is positioned within the shield contacting the coronode wires and grid wires. The wiper moves along the coronode wires and grid wires to remove contaminating particles therefrom.
    Type: Grant
    Filed: November 16, 1972
    Date of Patent: March 2, 1976
    Assignee: Xerox Corporation
    Inventor: Thomas F. Hayne