Patents by Inventor Denis A. Bronan

Denis A. Bronan 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).

  • Welding process and mixture of reactants for use in such process
    Patent number: 5062903
    Abstract: The invention provides a method and means of producing weld metal for use in joining two or more metallic pieces. The method includes the steps of providing a novel mixture of reactants comprising a reducing agent, a metallic compound which is exothermically reduced by the reducing agent, and a filler metal that does not react with the metallic compound. The mixture of reactants is then exothermically reacted so as to form the weld metal for joining the metallic pieces. At least about 90 percent by weight of the weld metal is produced by the filler metal and at least about 90 percent by weight of the weld metal has a chemical composition substantially similar to that of at least one of the metallic pieces being joined.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: November 5, 1991
    Assignee: Erico Products, Inc,
    Inventors: Denis A. Bronan, James E. Whetsel