Patents Assigned to Insituform Mid America, Inc.
  • Method of reconstructing pipe systems using fiberglass laminates
    Patent number: 4897135
    Abstract: A method of reconstructing fixed pipe systems (which cannot be rotated) by applying a fiberglass laminate utilizing overlapping sections.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: January 30, 1990
    Assignee: Insituform Mid America, Inc.
    Inventors: Harry H. Aylor, Jr., Boyd A. Hirtz