Patents by Inventor Francis Van Dyck

Francis Van Dyck 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).

  • Reinforced foam core composite structure and method
    Patent number: 4357013
    Abstract: A tubular frame structure adapted for use as a tennis racket having a rigid outer shell of composite material and an inner reinforced foam core including a foam portion and honeycomb reinforcement layers. The honeycomb reinforcement layers are oriented so that string holes passing through the frame pass through the foam core and rigid shell, but do not pass through the honeycomb layers. The use of honeycomb reinforcement layers is particularly well suited for use with elastic polymer foam cores.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: November 2, 1982
    Inventors: David Fernandez, Francis Van Dyck