Patents Assigned to Leo Gruna
  • Crush resistant motor vehicle body
    Patent number: 4555134
    Abstract: The vehicle body comprises a stiff inner shell to which are affixed one or more layers of panels with overlapping edges. The inside face of each panel is of impact-resistant material. The outer face is any relatively thin material stiff enough to present a smooth surface and capable of being painted. The space between inner and outer faces is filled with any lightweight crush-resistant material preferably corrugated cardboard. In the event of damage to the cardboard, individual panels can be removed and replaced.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: November 26, 1985
    Assignee: Leo Gruna
    Inventor: Leo Gruna