Patents Assigned to Boral Resources (QLD) Pty. Limited
  • Clean out block assembly
    Patent number: 5546721
    Abstract: A clean out block assembly for providing access to the interior of a building block which has a back wall and two side walls, and an essentially open front. The side walls have slots or shoulders. A replaceable front wall member is inserted into the front of the block, and is engaged by the slots or shoulders. A spring is used between the back wall and the front wall to hold the front wall in position.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: August 20, 1996
    Assignee: Boral Resources (QLD) pty Limited
    Inventor: Norman G. Daniells
  • Combined cleanout block and tile
    Patent number: D369417
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: April 30, 1996
    Assignee: Boral Resources (QLD) Pty. Limited
    Inventor: Allan J. Evans