Patents by Inventor Ralph Lewis, Jr.

Ralph Lewis, Jr. 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).

  • Apparatus for reduced tear propagation
    Patent number: 4732233
    Abstract: An improved emergency slide evacuation device wherein a second ply substantially parallels a sliding ply of the emergency slide evacuation device but remains substantially unattached to the sliding ply except for edge portions of the second ply whereby the second ply supports the sliding ply in the event of tears or rips in the sliding ply but remains at least partially isolated from the forces being applied to the sliding ply to effect tearing or ripping. The improvement finds use particularly in the fabrication of aircraft evacuation slides.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: March 22, 1988
    Assignee: The B. F. Goodrich Company
    Inventors: Clarence S. Melander, Ralph Lewis, Jr.