Patents by Inventor Glenn B. Fordyce

Glenn B. Fordyce 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).

  • Patent number: 5084000
    Abstract: A spiral zig-zag folding apparatus for folding a length of paper having longitudinally spaced, transversely oriented perforations includes a swing chute assembly having an upper chute pivotally mounted to a lower chute which guide the paper between opposed spiral folders for folding along adjacent perforations. The upper and lower chutes are driven by a single drive arm carried at one side of the apparatus frame by an eccentric cam which is adjustable to vary the stroke of the drive arm, and, in turn, the movement of the chutes. Each chute includes a pair of spaced blades formed with a foam core overwrapped with one or more layers of composite material.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: January 28, 1992
    Inventor: Glenn B. Fordyce
  • Patent number: 4828540
    Abstract: A spiral zig-zag folding apparatus for folding a length of paper having longitudinally spaced, transversely oriented perforations includes a swing chute assembly having an upper chute pivotally mounted to a lower chute which guide the paper between opposed spiral folders for folding along adjacent perforations. The upper and lower chutes are driven by a single drive arm carried at one side of the apparatus frame by an eccentric cam which is adjustable to vary the stroke of the drive arm, and, in turn, the movement of the chutes. Each chute includes a pair of spaced blades formed with a foam core overwrapped with one or more layers of composite material.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: May 9, 1989
    Inventor: Glenn B. Fordyce