Patents by Inventor Roger L. Black

Roger L. Black 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).

  • Hot air drum evaporator
    Patent number: 4305780
    Abstract: An evaporation system for aqueous radioactive waste uses standard 30 and 55 gallon drums. Waste solutions form cascading water sprays as they pass over a number of trays arranged in a vertical stack within a drum. Hot dry air is circulated radially of the drum through the water sprays thereby removing water vapor. The system is encased in concrete to prevent exposure to radioactivity. The use of standard 30 and 55 gallon drums permits an inexpensive compact modular design that is readily disposable, thus eliminating maintenance and radiation build-up problems encountered with conventional evaporation systems.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: December 15, 1981
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Roger L. Black