Patents by Inventor Kypros Pilakoutas

Kypros Pilakoutas 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).

  • Fiber reinforced concrete
    Patent number: 7267873
    Abstract: Fiber reinforced concrete has thin steel wire of diameter between 0.05 and 0.3 mm such as cut from recycled vehicle tires. To avoid the problem of balling when mixing, two alternatives are suggested. The first consists of strands of fiber, which demonstrate excellent bond characteristics. The second consists of a mixture of fiber lengths and thicknesses, giving a wide distribution of l/d ratios not exceeding 250, which has the effect of reducing balling tendency so that significant densities can be achieved.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: September 11, 2007
    Inventors: Kypros Pilakoutas, Peter Waldron
  • Fiber reinforced concrete
    Publication number: 20050129931
    Abstract: Fibre reinforced concrete comprises thin steel wire of diameter between 0.05 and 0.3 mm such as cut from recycled vehicle tyres. To avoid the problem of balling when mixing, two alternatives are suggested. The first consists of strands of fibre, which demonstrate excellent bond characteristics. The second consists of a mixture of fibre lengths and thicknesses, giving a wide distribution of 1/d ratios not exceeding 250, which has the effect of reducing balling tendency so that significant densities can be achieved.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 16, 2005
    Inventors: Kypros Pilakoutas, Peter Waldron
  • Reinforced concrete structural elements
    Patent number: 6003281
    Abstract: A shear failure reinforcing system for structural elements, in which thin elongate strips of high stiffness material are anchored around a layer of conventional reinforcement, and/or are anchored around a plurality of layers of conventional reinforcement, such that the strips tie the element and improve its resistance to shear failure.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: December 21, 1999
    Assignee: The University of Sheffield
    Inventor: Kypros Pilakoutas
  • Repair and reinforcement of load bearing members
    Patent number: 5799451
    Abstract: A method of laterally reinforcing a load bearing structural member is described. The method comprises wholly or partly encircling the structural member with an elongate strip (8) of high tensile, high stiffness material and applying a tension to the strip (8) sufficient to put the material of the structural member into lateral compression such that an abnormal increase in the internal stresses in the structural member will cause yielding of the strip (8) before compressive, bending, or shear failure of the structural member.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: September 1, 1998
    Assignee: The University of Sheffield
    Inventor: Kypros Pilakoutas