Patents by Inventor Jeffrey D. Hoyal

Jeffrey D. Hoyal 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).

  • COMPOUND AIRFOIL
    Publication number: 20130224037
    Abstract: An airfoil is provided that has an arrangement that improves the lift of an airfoil and that include surface features that change the performance of the airfoil. Protrusions are provided on the top surface of the airfoil such that channels are formed between adjacent protrusions that affect the flow of air there through. In an additional respect, indentations can be provided on the bottom surface of the airfoil that affect the flow of air there through.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 29, 2013
    Inventors: Dennis Simpson, Jeffrey D. Hoyal