Patents by Inventor Jon F. Copperwheat

Jon F. Copperwheat 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: 5742872
    Abstract: A commutating connector which electrically connects conductive paths of a rotating electroded donor roll to a voltage source. The connector includes a housing made of an electrically insulating material. The housing defines a chamber to receive the donor roll. An electrically conductive brush is disposed in the chamber. The brush is mounted in pressing engagement against the conductive paths on the electroded donor roll to electrically connect the voltage source to the conductive paths on the electroded donor roll. The chamber is divided by a partition into a commutating and a non-commutating area. The housing has ports for receiving air to prevent particulate matter from accumulating between the brush and donor roll.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: April 21, 1998
    Assignee: Xerox Corporation
    Inventors: Jon F. Copperwheat, Jonathan T. Abbe, Sam E. Stewart