Patents by Inventor Joseph M. Allen, Jr.

Joseph M. Allen, Jr. 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).

  • Ion deposition printer with improved toning unit assembly including apparatus for separating and removing non-magnetic lubricating particles
    Patent number: 4809035
    Abstract: Substantial amounts of non-magnetic (zinc stearate) particles are removed from a supply of single component magnetic toner descending from a toner hopper before the toner reaches the image drum of an ion deposition printer. Such separation is accomplished by providing an unwanted particle chamber extending along substantially the entire width of the toner unit housing adjacent and generally below the toner hopper outlet. A blower is effective through an air manifold assembly mounted on the toner unit housing to draw the unwanted particles from such chamber.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: February 28, 1989
    Inventor: Joseph M. Allen, Jr.