Patents Assigned to Terry Asphalt Materials, Inc.
  • Radiation shields and techniques for radiation shielding
    Patent number: 7518028
    Abstract: Radiation shields and techniques for radiation shielding are provided. Bitumen substances, such as asphalt or tar, are mixed with radioactive waste, leaded glass, or a radioactive waste and leaded glass composite. In embodiments where the bitumen substance is mixed with leaded glass, the resulting mixture can be coated onto containers that house radioactive waste or the resulting mixture can be coated onto the outer surface of the radioactive waste.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: April 14, 2009
    Assignee: Terry Asphalt Materials, Inc.
    Inventors: Dennis Dean Loyd, Larry Lee Lough, Roger E. Hayner, Phillip R. Terry