Patents by Inventor Raymund S. Cabales

Raymund S. Cabales 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).

  • Golf shaft for controlling passive vibrations
    Patent number: 6155932
    Abstract: In the field of golf equipment, a new shaft design incorporates passive damping to suppress the vibrations excited in the shaft before and after impact. The design comprises a viscoelastic material sandwiched between multiple layers of composite plies which induce large shear strains in the viscoelastic when the shaft is subjected to bending, extension, or twist, thus increasing damping losses over conventional golf shafts. In one embodiment, the sandwiching layers are of opposing orientation. In another embodiment, the layers are oriented in an opposing V-shape laminate.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: December 5, 2000
    Inventors: Raymund S. Cabales, John B. Kosmatka, Frank M. Belknap
  • Golf shaft for controlling passive vibrations
    Patent number: 5928090
    Abstract: In the field of golf equipment, a new shaft design incorporates passive damping to suppress the vibrations excited in the shaft before and after impact. The design comprises a viscoelastic material sandwiched between multiple layers of composite plies which induce large shear strains in the viscoelastic when the shaft is subjected to bending, extension, or twist, thus increasing damping losses over conventional golf shafts. In one embodiment, the sandwiching layers are of opposing orientation. In another embodiment, the layers are oriented in an opposing V-shape laminate.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: July 27, 1999
    Inventors: Raymund S. Cabales, John B. Kosmatka, Frank M. Belknap