Patents by Inventor Douglas R. MacMillan

Douglas R. MacMillan 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: 4581089
    Abstract: An improved glazing system wherein glass panels are secured to a frame member in an edge-to-edge sealed relationship. A first glass panel is bonded to a frame member such as a vertical mullion using a sealant which adheres to the edge of the first glass panel and to the face of the first glass panel adjacent the edge. A portion of the frame is removed to expose a section of the bonded sealant and thereafter a second glass panel is positioned on the sealant such that the two glass panels are in an edge-to-edge, sealed relationship. The edge to edge abutting relationship of the panels may be accomplished without the need for caulking or exterior access to the glass panels.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 8, 1986
    Assignee: Guardian Industries Corp.
    Inventor: Douglas R. MacMillan