Patents by Inventor Ronald L. Andersen

Ronald L. Andersen 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).

  • Disk reclaimer for use with cohesive bulk materials
    Patent number: 5289982
    Abstract: A disk reclaimer, having spring mounted harrow and carrier teeth, is described. The spring loaded teeth are less subject to binding or breakage when reclaiming highly cohesive bulk materials such as phosphate shales.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: March 1, 1994
    Assignee: FMC Corporation
    Inventor: Ronald L. Andersen
  • Process for treatment of phossy water for recycling
    Patent number: 4744971
    Abstract: In the electric arc furnace production of elemental phosphorus, cold phossy water is segregated from hot phossy water. The cold phossy water is discharged to a lined pond wherein solids settle to form a clarified cold water which is recycled for cooling and washing purposes. The hot phossy water is passed through a lamellar settler wherein phosphorus and solids are separated as a sludge to form a clarified hot water. The clarified hot water, without requiring additional heat, is recycled for process use. Phosphorus is recovered from the sludge to reduce to a minimum the amount of phosphorus discharged with dirt from the hot phossy water to the pond.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: May 17, 1988
    Assignee: FMC Corporation
    Inventors: Gordon H. Scherbel, David A. Crea, Jerry A. Keely, Ronald L. Andersen, Byron L. Nichols