Patents by Inventor Fredrick E. Wolatz

Fredrick E. Wolatz 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).

  • Gypsum-based granules and method of production
    Patent number: 4183763
    Abstract: Calcium sulfate hemihydrate is processed into agglomerates such as granules and/or macrogranules by addition of an aqueous binder to a fluidized charge of calcium sulfate hemihydrate particles. The hemihydrate particles are agglomerated to a predetermined size range and hydrated to calcium sulfate dihydrate. The produced agglomerates have a bulk density of less than about 55 pounds per cubic foot, a surface hardness providing less than about 40 percent attrition, and a liquid holding capacity of at least about 10 percent.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: January 15, 1980
    Assignee: Oil-Dri Corporation of America
    Inventors: Barry A. Omilinsky, Fredrick E. Wolatz