Patents by Inventor B. Walter Rosen

B. Walter Rosen 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).

  • Energy absorbing structural laminate
    Patent number: 6524692
    Abstract: An energy absorbing structural laminate comprising: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; (b) a second layer of composite material comprising x2 plies; wherein at least 0.5x2 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; and (c) a viscoelastic layer disposed between the first and second layers such that shear strains are substantially distributed throughout the viscoelastic layer when a load is applied to the structural laminate.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: February 25, 2003
    Assignee: Structured Composites, LP
    Inventor: B. Walter Rosen
  • Composite sports racket
    Patent number: 6416432
    Abstract: A sports racket comprising a frame made of an energy absorbing structural laminate. The structural laminate comprises: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; (b) a second layer of composite material comprising x2 plies; wherein at least 0.5x2 plies contain fibers arranged in a shape of a continuous curve; wherein said continuous curve is the same or different in different plies; and (c) a viscoelastic layer disposed between the first and second layers such that shear strains are substantially distributed throughout the viscoelastic layer when a load is applied to the structural laminate.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: July 9, 2002
    Assignee: Structured Composites, LP
    Inventors: B. Walter Rosen, Anthony A. Caiazzo