Patents by Inventor Lonnie G. Hilliard

Lonnie G. Hilliard 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).

  • No-bleed curing of composites
    Patent number: 4216047
    Abstract: A composite structure is prepared in a mold using a vacuum bag with an edge breather separated from a layup to be formed into a composite. A means of communication between the edge breather and the layup provides a path for air being drawn from the layup and to provide a path that closes off and prevents excess resin flow from the layup as it cures.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: August 5, 1980
    Assignee: Boeing Commercial Airplane Company
    Inventors: Lonnie G. Hilliard, Michael J. Sibborn