Patents by Inventor Donal Jay Armstrong

Donal Jay Armstrong 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).

  • Corner block for use in forming a corner of a segmental retaining wall
    Patent number: 6862856
    Abstract: A corner block is provided for use in constructing an exterior corner of a retaining wall. The corner block is designed to receive a portion of a retaining member that is used to secure a reinforcement member to blocks that are adjacent to the corner block. The corner block permits construction of a retaining wall having an exterior corner, where the right and left sides of the exterior corner can be reinforced.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: March 8, 2005
    Assignee: Anchor Wall Systems, Inc.
    Inventors: John Walter Turgeon-Schramm, Donal Jay Armstrong
  • Corner block for use in forming a corner of a segmental retaining wall
    Publication number: 20030150184
    Abstract: A corner block is provided for use in constructing an exterior corner of a retaining wall. The corner block is designed to receive a portion of a retaining member that is used to secure a reinforcement member to blocks that are adjacent to the corner block. The corner block permits construction of a retaining wall having an exterior corner, where the right and left sides of the exterior corner can be reinforced.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: John Walter Turgeon-Schramm, Donal Jay Armstrong