Patents by Inventor Roy E. Bryson

Roy E. Bryson 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).

  • Coarse concentrated iron ore for catalytic purposes
    Patent number: 4070274
    Abstract: An iron ore concentrate is made having at least 60% -6 to +14 mesh and no more than about 1% -20 mesh, by a process preferably employing a small counterflow sizer on a product obtained from the concentrate of a spiral concentrator through which is processed a high-iron mill product or partially concentrated coarse feed. The product of the counterflow sizer is agitated to separate cohering particles and then further concentrated.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: January 24, 1978
    Assignee: United States Steel Corporation
    Inventor: Roy E. Bryson
  • Ore tailings treatment
    Patent number: 4059506
    Abstract: Ore tailings at the terminus of a spiral concentrator are first split by a novel splitter box into value-rich and value-poor streams determined by the distribution of values therein, and the value-rich stream is upgraded, preferably by passing it through a conical gravity separator.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: November 22, 1977
    Assignee: United States Steel Corporation
    Inventor: Roy E. Bryson