Patents by Inventor Winston Anthony Marsden

Winston Anthony Marsden 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).

  • Concrete reinforcing elements and reinforced composite incorporating same
    Patent number: 4078940
    Abstract: This specification discloses a method of and apparatus for forming concrete reinforcing elements having enlarged ends and also discloses a reinforced composite incorporating such elements. In one embodiment the enlarged ends are formed by folding the edges of a strip of sheet metal onto itself while in another form the enlarged ends are formed by edge rolling a strip. In both cases the reinforcing element is formed by transversly shearing the strip after its edge has been modified. The reinforcing elements as described above are shown to have a greater pull-out resistance than plain elements.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: March 14, 1978
    Assignee: Australian Wire Industries Proprietary Limited
    Inventor: Winston Anthony Marsden
  • Method of making improved concrete reinforcing elements
    Patent number: 3994150
    Abstract: This specification discloses a method of and apparatus for forming concrete reinforcing elements having enlarged ends and also discloses a reinforced composite incorporating such elements. In one embodiment the enlarged ends are formed by folding the edges of a strip of sheet metal onto itself while in another form the enlarged ends are formed by edge rolling a strip. In both cases the reinforcing element is formed by transversely shearing the strip after its edge has been modified. The reinforcing elements as described above are shown to have a greater pull-out resistance than plain elements.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: November 30, 1976
    Assignee: Australian Wire Industries Proprietary Limited
    Inventor: Winston Anthony Marsden
  • Concrete reinforcing elements and reinforced composite incorporating same
    Patent number: 3953953
    Abstract: This specification discloses a method of and apparatus for forming concrete reinforcing elements having enlarged ends and also discloses a reinforced composite incorporating such elements. In one embodiment the enlarged ends are formed by folding the edges of a strip of sheet metal onto itself while in another form the enlarged ends are formed by edge rolling a strip. In both cases the reinforcing element is formed by transversely shearing the strip after its edge has been modified. The reinforcing elements as described above are shown to have a greater pull-out resistance than plain elements.
    Type: Grant
    Filed: November 27, 1973
    Date of Patent: May 4, 1976
    Assignee: Australian Wire Industries Proprietary Limited
    Inventor: Winston Anthony Marsden