Patents by Inventor Donald C. Forbush

Donald C. Forbush 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).

  • Sulfur dioxide generator
    Patent number: 4966757
    Abstract: An improved apparatus for burning sulfur to sulfur dioxide and generating sulfurous acid comprising a primary sulfur-burning chamber, a sulfur feed tank closely coupled to the primary chamber, a secondary sulfur burning chamber, and an absorption tower, Air is drawn into the primary chamber under turbulent, high velocity negative pressure conditions. Gas passes through the secondary chamber under turbulent negative pressure flow conditions. The apparatus is capable of converting sulfur to sulfur dioxide at a rate in excess of 25 pounds of sulfur per hour per square foot of surface area of the molten pool of sulfur in the primary chamber.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: October 30, 1990
    Inventors: Richard A. J. Lewis, Donald C. Forbush
  • Sulfurous acid generator
    Patent number: 4526771
    Abstract: A highly efficient apparatus for burning sulfur to sulfur dioxide and generating sulfurous acid comprises a primary sulfur-burning chamber, a sulfur feed tank closely coupled to the primary chamber, a secondary sulfur-burning chamber, and an absorption tower. Air is introduced to the primary chamber under turbulent, high-velocity flow conditions. Gas passes through the secondary chamber under turbulent flow conditions. The apparatus is capable of converting sulfur to sulfur dioxide at a rate in excess of 25 pounds of sulfur per hour per square foot of surface area of the molten pool of sulfur in the primary chamber.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 2, 1985
    Assignee: International Environmental, Inc.
    Inventors: Donald C. Forbush, Glen R. Seamon