Patents by Inventor F. John Littleton

F. John Littleton 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).

  • Sheeter for use with printing press and adding provision for arresting, squaring and diverting of sheet
    Patent number: 3994221
    Abstract: A sheeter for feeding sheets in shingled relation to a point of collection including a source of sheets, a first conveyor belt and a second conveyor belt operating at substantially reduced speed so that the sheets are collected thereon in shingled relation. For snubbing the successive sheets so that they are decelerated and uniformly spaced on the second conveyor belt, a snubber is provided in the form of a knock-down roller arm rotating in a vertical plane at the upstream end of the second conveyor belt and so spaced therefrom as to press a sheet into engagement with the second conveyor belt, the arm being driven at a rotary speed which is synchronized with the source, with means being provided for adjusting the phase of the arm with respect to the source so that the arm engages the tail of each successive sheet.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: November 30, 1976
    Assignee: World Color Press, Inc.
    Inventor: F. John Littleton