Patents Assigned to Butler Manufacturing Co., Inc.
  • Freeze-resistant downspout system
    Patent number: 5584147
    Abstract: A freeze-resistant downspout system includes a metal downspout having an interior portion within a building and a contiguous exterior portion outside the building. The exterior portion is shielded from the weather by a thermally insulated shroud so that heat conducted along the downspout from within the building is sufficient to keep the exterior portion from freezing.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Butler Manufacturing Co., Inc.
    Inventors: Ralph Agee, Michael E. Jackson