Patents by Inventor John Wayne Scharff

John Wayne Scharff 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).

  • Muntin bar connector with positioning tabs
    Patent number: 7124546
    Abstract: A connector for holding an internal muntin assembly away from a perimeter spacer of an insulating glass assembly until the assembler is ready to affix the muntin bar to the perimeter bar using an attachment device. The connector includes a positioning tab for holding the muntin bar away from the perimeter spacer to allow positioning of the muntin bar assembly until the positioning tab is moved relative to a baseplate so that the attachment device, such as thick double stick tape, is pressed to the perimeter spacer.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: October 24, 2006
    Assignee: Pella Corporation
    Inventors: John Wayne Scharff, Lawrence A. Schneider
  • Sliding operator for between the glass window coverings
    Patent number: 7066233
    Abstract: A screen assembly for installation in a fenestration product of the type having a window covering with a sliding operator. The screen assembly includes a screen frame having a screen material and is adapted to releasably attach to an interior side of the fenestration product. The screen assembly includes a screen operator slidable relative to the screen frame and releasably engagable with the sliding operator, such that the screen operator is operable from the interior side of the screen assembly.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: June 27, 2006
    Assignee: Pella Corporation
    Inventors: John Wayne Scharff, Seth Masters, Paul E. Smith, Steven D. Lauritsen, Paul Martin Pfitzenmaier