Patents by Inventor Jan Hirst

Jan Hirst 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).

  • Sheet transport
    Patent number: 4807868
    Abstract: A sheet transport includes one or more drive nips and a mechanism for automatically disengaging the nips in response to a predetermined condition such as the sensing of a jammed or stalled sheet, the movement of a sheet delivery tray between a sheet feeding position and a retracted position or the opening of an access door to the sheet transport. In a preferred form, one element of each drive nip is moved from the other element on a pivoted mounting.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: February 28, 1989
    Assignee: Xerox Corporation
    Inventors: Jan Hirst, John R. Strutt