Patents by Inventor Dodd S. Carr

Dodd S. Carr 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).

  • Lead alloy battery grids by laser treatment
    Patent number: 4978601
    Abstract: There is disclosed a method of laser treating lead-containing battery grids such that virtually instantaneous melting and solidfication occurs, thereby yielding an improved fine-grained microstructure even with such normally immiscible (in lead) metals as aluminum. The invention also permits a high aluminum content without the metal vaporization and oxidation, or the coarse grain structure, normally encountered. The fine grain structure of the treated product provides a battery grid having improved weight, electrical, mechanical and corrosion-resistant properties.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: December 18, 1990
    Assignee: International Lead Zinc Research Organization, Inc.
    Inventors: Michael M. Kim, Dodd S. Carr
  • Water-dispersible coatings containing boron nitride for steel casting dies
    Patent number: 4264052
    Abstract: A dispersion composition and a method for coating the surface of steel casting dies for molten metals are described. The dispersion composition comprises boron nitride powder dispersed in a peroxide-modified aqueous dispersion of a water-dispersible film-forming polymer. The coating composition provides thermal insulation to the mold surface, thereby minimizing premature solidification of the cast metal.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: April 28, 1981
    Assignee: International Lead Zinc Research Organization, Inc.
    Inventors: Schrade F. Radtke, Dodd S. Carr, Max Kronstein
  • Water-dispersible coatings containing boron nitride for steel casting dies
    Patent number: 4195002
    Abstract: A dispersion composition and a method for coating the surface of steel casting dies for molten metals are described. The dispersion composition comprises boron nitride powder dispersed in a peroxide-modified aqueous dispersion of a water-dispersible film-forming polymer. The coating composition provides thermal insulation to the mold surface, thereby minimizing premature solidification of the cast metal.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: March 25, 1980
    Assignee: International Lead Zinc Research Organization, Inc.
    Inventors: Schrade F. Radtke, Dodd S. Carr, Max Kronstein