Patents Assigned to CCL Systems, Ltd.
  • Patent number: 4099360
    Abstract: A method of erecting multi-story buildings by joining spaced elongated vertical columns of concrete. The method comprises providing a screw threaded metal socket in the face of each column to be connected. The socket of one column has a thread opposite in direction to that of the socket in the other column. One column is disposed over the other with the mouth of the sockets aligned.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: July 11, 1978
    Assignee: CCL Systems, Ltd.
    Inventor: Christopher David Outram