Patents by Inventor Wilbur E. Thomas

Wilbur E. Thomas 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).

  • Method and apparatus for ejecting single sheets from a stack of sheets in a tray
    Patent number: 4281829
    Abstract: A method and apparatus for discharging sheets one by one from a stack wherein a reciprocating ejector foot engages the top sheet of the stack and urges it against barriers positioned to intercept the corners of the sheet; the barriers are disposed obliquely to the plane defined by the sheet thereby tending to block the corners of the sheet from moving out of the tray but permitting the portion of the sheet between the corners to buckle upwardly and enter the nip of a pair of rollers, raising the corners of the sheet from engagement with the oblique corner barriers and pulling it from the tray.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: August 4, 1981
    Inventor: Wilbur E. Thomas