Patents by Inventor Charles Henry Cadden

Charles Henry Cadden 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).

  • Process for the electrodeposition of low stress nickel-manganese alloys
    Patent number: 6902827
    Abstract: A process for electrodepositing a low stress nickel-manganese multilayer alloy on an electrically conductive substrate is provided. The process includes the steps of immersing the substrate in an electrodeposition solution containing a nickel salt and a manganese salt and repeatedly passing an electric current through an immersed surface of the substrate. The electric current is alternately pulsed for predetermined durations between a first electrical current that is effective to electrodeposit nickel and a second electrical current that is effective to electrodeposit nickel and manganese. A multilayered alloy having adjacent layers of nickel and a nickel-manganese alloy on the immersed surface of the substrate is thereby produced. The resulting multilayered alloy exhibits low internal stress, high strength and ductility, and high strength retention upon exposure to heat.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: June 7, 2005
    Assignee: Sandia National Laboratories
    Inventors: James John Kelly, Steven Howard Goods, Nancy Yuan-Chi Yang, Charles Henry Cadden
  • Process for the electrodeposition of low stress nickel-manganese alloys
    Publication number: 20040031691
    Abstract: A process for electrodepositing a low stress nickel-manganese multilayer alloy on an electrically conductive substrate is provided. The process includes the steps of immersing the substrate in an electrodeposition solution containing a nickel salt and a manganese salt and repeatedly passing an electric current through an immersed surface of the substrate. The electric current is alternately pulsed for predetermined durations between a first electrical current that is effective to electrodeposit nickel and a second electrical current that is effective to electrodeposit nickel and manganese. A multilayered alloy having adjacent layers of nickel and a nickel-manganese alloy on the immersed surface of the substrate is thereby produced. The resulting multilayered alloy exhibits low internal stress, high strength and ductility, and high strength retention upon exposure to heat.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Inventors: James John Kelly, Steven Howard Goods, Nancy Yuan-Chi Yang, Charles Henry Cadden