Patents by Inventor John Scharff

John 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).

  • Publication number: 20050103449
    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: Application
    Filed: December 31, 2004
    Publication date: May 19, 2005
    Applicant: Pella Corporation
    Inventors: John Scharff, Seth Masters, Paul Smith, Steven Lauritsen, Paul Pfitzenmaier
  • Publication number: 20050102957
    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: Application
    Filed: November 18, 2003
    Publication date: May 19, 2005
    Inventors: John Scharff, Lawrence Schneider
  • Patent number: 6746175
    Abstract: A fenestration product such as a door or a window includes a plurality of frame members positioned in a surrounding relationship about a panel, each of the members having a pair of opposite open ends. A plurality of corner locks couple the beveled ends of the frame members together to form secure corners of the frame. A miter joint interface line is defined between the abutting, beveled ends of the members at each corner. Each corner lock comprises a generally L-shaped body having a pair of legs that are secured within the open ends of the corresponding frame members. A pair of parallel sealant channels extend along the back, top and front of the body and are disposed on opposite sides of and laterally offset from the interface line so that sealant filling the channels creates a pair of parallel seal paths between the lock and the frame that are laterally offset from the interface line.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: June 8, 2004
    Assignee: Pella Corporation
    Inventors: Michael Gonnerman, Andrew P. Schirz, John Scharff
  • Patent number: 5934351
    Abstract: A slatted blind (10) includes a headrail (12) with a pair of ladder cords (16, 18) depending therefrom with slats (14) supported on the wefts (44, 52) extending between the warps (42a,b, 50a,b) of each cord and further includes a tilt mechanism (20) to extend one warp of each cord and to retract the other in order to tilt the slats. The preferred tilt mechanism (20) includes a pair of slides (60, 62) positioned on the bottom wall (26) of the headrail (12). The ends of the warps (42a,b, 50a,b) are coupled with the slides (60, 62) on opposed sides of respective cord holes (82, 90) defined through the slides (60, 62) and extend therethrough and also through respective cord openings (30, 32) in the bottom wall. Back and forth shifting of the slides (60, 62) along the bottom wall (26) alternately extend one warp of each cord and retract the other in order to tilt the slats.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: August 10, 1999
    Assignee: Pella Corporation
    Inventors: Rashid Bharucha, Gregory D. De Boer, William R. Guthrie, John Scharff, Howard C. Anderson, III