Patents Assigned to Iceberg Cribs, Inc.
  • Ice crib
    Patent number: 4522537
    Abstract: An ice crib for use in retreat mining to support the overburden is formed of fresh water ice, the freezing and melting of which is controlled in situ by flow therethrough of temperature regulated brine.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: June 11, 1985
    Assignee: Iceberg Cribs, Inc.
    Inventor: David L. Kuck