Patents by Inventor Alistair J. Caldwell

Alistair J. Caldwell 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).

  • Sorting apparatus
    Patent number: 4214746
    Abstract: A sorting apparatus in which a sheet loading station is arranged to advance sheets into individual sheet receiving members of one of at least two groups of sheet receiving members. The other group of sheet receiving members is positioned at one of two sheet unloading stations. After loading and unloading sheets from the respective groups of sheet receiving members, the loaded group of sheet receiving members moves to the other sheet unloading station as the unloaded group of sheet receiving members returns to the sheet loading station.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: July 29, 1980
    Assignee: Xerox Corporation
    Inventors: Thomas P. Redding, Glenn M. Herbert, Alistair J. Caldwell