Patents by Inventor Norman B. Scheffel

Norman B. Scheffel 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).

  • Separator for starved electrolyte lead/acid battery
    Patent number: 4233379
    Abstract: Compositions and papers made therefrom useful as separator materials in starved electrolyte lead/acid batteries are described. The compositions comprise a mixture of 30% to 80% by weight of perlite and 20% to 70% by weight of glass fibers. The glass fibers have diameters in the range of from 0.3 to 1.0 micrometers while the perlite has particle sizes in the range of from about 3 to about 100 micrometers.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: November 11, 1980
    Assignee: Johns-Manville Corporation
    Inventors: Stephen E. Gross, Clifford W. Cain, Jr., Paul D. Bilawsky, Norman B. Scheffel