Patents by Inventor David Krakowski

David Krakowski 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).

  • Drive-in trim system for intersecting hollow wall partitions
    Patent number: 4497150
    Abstract: A two piece system for driving a piece of trim into place at the intersection of paneled hollow wall partitions comprises a retainer clip and the trim piece. The retainer clip, made of spring steel, has a first leg which is secured to the partition and a detent leg which slips between the edge of said partition and the face of an intersecting partition. A barbed leg of an L-shaped trim piece is driven between said face and the detent leg so that the lip of the barb engages the detent of the retainer clip.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: February 5, 1985
    Assignee: United States Gypsum Company
    Inventors: Alan C. Wendt, David Krakowski
  • Wall panel bracing rib and wall constructed therewith
    Patent number: 4464875
    Abstract: The kerfed edges of wall panels attached to H-studs by engagement of the stud flanges within the kerfs are protected against breakage by panel bracing ribs installed within the wall cavity by insertion of the ribs into apertures located in the webs of the studs. Said ribs are bowed wafers of plastic or other flexible material having a notched tab at each end. Insertion of the vertically oriented tabs into said apertures and rotation of the bow to orient said tabs horizontally secures the bracing rib to the stud.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: August 14, 1984
    Assignee: Unites States Gypsum Company
    Inventors: Alan C. Wendt, David Krakowski