Patents by Inventor John D. Eck

John D. Eck 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).

  • Protective helmet assembly
    Patent number: 5475878
    Abstract: A protective helmet assembly (10) comprising a hard ballistic outer shell (12) in a clam shell construction of hinged shell portions (14, 16), the front portion (14) being provided with a window opening (20) and a facial seal (34). A transparent visor (22) and sun visor (24) are pivotally mounted on the shell portion (14) and are positionable to cover the window with a seal (23) between the visor (22) and shell portion (14). Impact absorbing pads (31, 32) of open cell flexible polyimide foam material are attached to the inner surface of the hard shell portions (14, 16) by cooperative fastener strips (35, 36) of hook-and-loop material.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: December 19, 1995
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Adminstration
    Inventors: Frederic S. Dawn, John D. Eck, Fred R. Weiss