Patents by Inventor Barry L. McDonald

Barry L. McDonald 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).

  • Masonry block locking device
    Patent number: 6843034
    Abstract: A method and apparatus for constructing masonry walls made of open-celled blocks without the need for mortar between individual blocks or courses of blocks using individual C-shaped bracketed pieces that lock adjacent blocks together. The open-celled blocks must have recessed notches between the cells to receive the brackets. An alternative E-shaped bracket structure allows for defined spacing between blocks that may be used to create curves in the wall.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 18, 2005
    Inventor: Barry L. McDonald
  • Masonry block locking device
    Publication number: 20030221386
    Abstract: A method and apparatus for constructing masonry walls made of open-celled blocks without the need for mortar between individual blocks or courses of blocks using individual C-shaped bracketed pieces that lock adjacent blocks together. The open-celled blocks must have recessed notches between the cells to receive the brackets. An alternative E-shaped bracket structure allows for defined spacing between blocks that may be used to create curves in the wall.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventor: Barry L. McDonald