Patents by Inventor Ronald G. Hardy

Ronald G. Hardy 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).

  • Electrical conductivity of aluminum alloys through the addition of yttrium
    Patent number: 4213800
    Abstract: The present invention utilizes the unique addition of yttrium to aluminum base alloys to either enhance the conductivity of such alloys when compared to commercial conductor grade material or provide equivalent conductivity when utilizing grades of aluminum containing higher normal impurity levels. Various processing procedures can be utilized for this material, depending upon the desired final properties.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: July 22, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: William E. Mayo, Mathur Raghavan, Stanley Shapiro, Ronald G. Hardy, Duncan G. Block
  • Improving the electrical conductivity of aluminum alloys through the addition of mischmetal
    Patent number: 4213799
    Abstract: The present invention utilizes the unique addition of mischmetal to aluminum base alloys to either enhance the conductivity of such alloys when compared to commercial conductor grade material or provide equivalent conductivity when utilizing grades of aluminum containing higher normal impurity levels. Various processing procedures can be utilized for this material, depending upon the desired final properties.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: July 22, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: Mathur Raghavan, Stanley Shapiro, Ronald G. Hardy, Duncan G. Block
  • Process for making aluminum alloy conductor wire
    Patent number: 4183771
    Abstract: A process for making aluminum alloy conductor wire having an electrical conductivity of at least 60.0% IACS which involves processing an alloy containing from 0.04 to 1.0% by weight iron, from 0.02 to 0.2% by weight silicon, from 0.1 to 1.0% by weight copper, from 0.001 to 0.2% by weight boron, balance essentially aluminum and processing said alloy without a final redraw step into wire. The process preferably includes hot working from at least approximately 900.degree. F. without reheating to form the redraw rod. This hot working is performed in order to allow the wire produced from this process to meet the desired properties at the final gages, such properties including high electrical conductivity under rapid annealing conditions.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: January 15, 1980
    Assignee: Swiss Aluminium Ltd.
    Inventors: William C. Setzer, Ronald G. Hardy, Joseph Winter