Patents Assigned to The Millgard Corporation
  • Method for constructing foundations and perimeter walls
    Patent number: 5294215
    Abstract: An adaptation of apparatus disclosed in U.S. Pat. No. 5,135,058 to provide foundations or perimeter walls is effected with the drilling of circular holes within a range of four to sixteen feet overlapping to provide continuous area coverage in the case of foundations with a minimum of overlap and to provide a minimum wall thickness in the order of hole radius in the case of containment walls.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: March 15, 1994
    Assignee: The Millgard Corporation
    Inventor: V. Dennis Millgard