Patents by Inventor Roger Frangolacci

Roger Frangolacci 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).

  • Shelter with armoring composite walls and doors
    Patent number: 4748790
    Abstract: A shelter contains walls enframed by members of a metal structure. So that the shelter offers efficient protection against violent explosions, and especially against the blast produced by a nuclear explosion, a wall consists of an internal panel having at least one metal side connected electrically to structure members enframing the wall, an external armoring panel, an air space between the internal and external panels, and energy absorbing means, such as flexible synthetic seals, located in the air space for keeping the external panel floating between the internal panel and flanges of the enframing members. This wall can form a door to the shelter.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 7, 1988
    Assignee: Lhotellier Bachmann Industrie (L.B.I.) S.A.
    Inventor: Roger Frangolacci