Patents by Inventor Eva R. Karal

Eva R. Karal 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).

  • Dry and/or wet one-atmosphere underwater system
    Patent number: 4753552
    Abstract: A one-atmosphere underwater modular system is provided. The modular system comprises components which can be manipulated and attached to one another through use of a submarine or the like. A variety of components are provided including: a maneuvarable submarine component; a bottom frame; a two-connection module; a one-connection module; and christmas tree modules. A variety of means and methods for connection in various orientations is disclosed. The system is specifically adapted for use in the recovery of natural resources, such as for oil and gas recovery.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: June 28, 1988
    Assignee: Kvarner Subsea Contracting A/S
    Inventors: Eva R. Karal, Rolf Kvamsdal