Patents by Inventor Leif J. Hansen

Leif J. Hansen 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).

  • Solar heat receiver
    Patent number: 4499893
    Abstract: A receiver for converting solar energy to heat a gas to temperatures from 700.degree.-900.degree. C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 19, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Arlon J. Hunt, Leif J. Hansen, David B. Evans