Patents by Inventor Robert Foster Colefax

Robert Foster Colefax has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for constructing large, continuous, concrete slabs
    Patent number: 7069703
    Abstract: A method and system are provided for constructing large, continuous, concrete slabs without using conventional shrinkage joints. The system comprises a grid of closely-spaced crack inducers (2) arranged relative to a concrete-pouring surface and adapted to be covered by concrete. The crack inducers (2) may be connected to one another with connectors (10). The crack inducers (2) are of a size, shape and spacing to promote formation of fine cracks in the vicinity of the inducers (2) throughout the slab when the concrete sets.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: July 4, 2006
    Assignee: Building Innovations Pty Ltd
    Inventors: Warwick Ian Colefax, Robert Foster Colefax, Miro Getaldic
  • Method and system for constructing large, continuous, concrete slabs
    Publication number: 20030115823
    Abstract: A method and system are provided for constructing large, continuous, concrete slabs without using conventional shrinkage joints. The system comprises a grid of closely-spaced crack inducers (2) arranged relative to a concrete-pouring surface and adapted to be covered by concrete. The crack inducers (2) may be connected to one another with connectors (10). The crack inducers (2) are of a size, shape and spacing to promote formation of fine cracks in the vicinity of the inducers (2) throughout the slab when the concrete sets.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 26, 2003
    Applicant: Building Innovations Pty Ltd
    Inventors: Warwick Ian Colefax, Robert Foster Colefax, Miro Getaldic