Patents Assigned to Hail Mary Rubber Company, Inc.
  • Sewer construction and pipe encasement therefor
    Patent number: 5482403
    Abstract: Prefabricated concrete pipe encasements are disclosed for stabilizing underground conduit systems from movement caused by flotation, back filling or settling. In one embodiment, a sewer chimney includes a plastic riser connected between a tee-fitting in a sewer main and a cap block at a branch service line. At least one pipe encasement and a prefabricated concrete base encircles the riser for maintaining alignment with the tee-fitting. In other embodiments the pipe encasement encircles a generally horizontal pipe line.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: January 9, 1996
    Assignee: Hail Mary Rubber Company, Inc.
    Inventors: William D. Jones, Louis A. Esposito