Patents by Inventor Eugene Striffler, Jr.

Eugene Striffler, Jr. 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).

  • Production of lead monoxide from lead sulfate with acetic acid
    Patent number: 4269811
    Abstract: An efficient and inexpensive method for producing lead monoxide from lead sulfate bearing materials such as recycled battery mud is provided comprising:(a) reacting said material with an ammonium carbonate solution to convert lead sulfate to lead carbonate;(b) decomposing the lead carbonate to form impure lead monoxide;(c) reacting the impure lead monoxide with acetic acid to form a lead acetate solution;(d) contacting the lead acetate solution with carbon dioxide to produce insoluble lead carbonate; and(e) decomposing the lead carbonate to form lead monoxide.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: May 26, 1981
    Assignee: NL Industries, Inc.
    Inventors: Eugene Striffler, Jr., Michael A. Kolakowski
  • Production of lead monoxide from lead sulfate with acidic ammonium acetate
    Patent number: 4220628
    Abstract: An efficient and inexpensive method for producing lead monoxide from impure lead sulfate bearing materials such as recycled battery mud is provided comprising:(a) reacting said material with an ammonium carbonate solution to convert lead sulfate to lead carbonate;(b) decomposing the lead carbonate to produce impure lead monoxide;(c) reacting said impure lead monoxide with an acidic ammonium acetate solution to form a lead acetate solution;(d) reacting ammonium hydroxide with the lead acetate solution to form lead hydroxide; and(e) dehydrating the lead hydroxide to produce lead monoxide.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: September 2, 1980
    Assignee: N L Industries, Inc.
    Inventors: Eugene Striffler, Jr., Michael A. Kolakowski