Patents Assigned to Desert Systems Limited
  • Building element and a construction method using such an element
    Patent number: 4766711
    Abstract: A lightweight building element is moulded in the form of a three or four sided shell defining an interior space for receiving a filler material. The element is trapezoidal in at least one elevation so as to be stackable with a plurality of identical elements for ease of transportation. The method of the invention involves laying the elements in courses and then filling the elements from above with a loose relatively heavy filler material such as gravel or sand to form a solid structure.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: August 30, 1988
    Assignee: Desert Systems Limited
    Inventors: Hubert P. M. Bermingham, Pietro Cavanna