Patents by Inventor Norman R. Olsen

Norman R. Olsen 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).

  • Dust abatement with calcium sulfate
    Patent number: 4269721
    Abstract: A method of treating stored coal to prevent dusting and reduce moisture penetration of the coal, comprising forming a hardened crust of a hydrated calcium sulfate containing composition over the exposed surface of the coal pile. The calcium sulfate product produced from the fluid bed combustion of coal in the presence of limestone is particularly useful.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: May 26, 1981
    Assignee: Stauffer Chemical Company
    Inventors: Klaus W. Mueller, Norman R. Olsen