Patents by Inventor Simon H. Lin

Simon H. Lin 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).

  • Method for creating a corrosion-resistant surface on an aluminum-copper alloy
    Patent number: 5635084
    Abstract: A method for treating the surface of aluminum alloys hang a relatively high copper content is provided which includes the steps of removing substantially all of the copper from the surface, contacting the surface with a first solution containing cerium, electrically charging the surface while contacting the surface in an aqueous molybdate solution, and contacting the surface with a second solution containing cerium. The copper is substantially removed from the surface in the first step either by (i) contacting the surface with an acidic chromate solution or by (ii) contacting the surface with an acidic nitrate solution while subjecting the surface to an electric potential. The corrosion-resistant surface resulting from the invention is excellent, consistent and uniform throughout the surface. Surfaces treated by the invention may often be certified for use in salt-water services.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: June 3, 1997
    Assignee: University of Southern California
    Inventors: Florian B. Mansfeld, You Wang, Simon H. Lin
  • Method for creating a corrosion-resistant surface on aluminum alloys having a high copper content
    Patent number: 5582654
    Abstract: A method for treating the surface of aluminum alloys having a relatively high copper content is provided which includes the steps of removing substantially all of the copper from the surface, contacting the surface with a first solution containing cerium, electrically charging the surface while contacting the surface in an aqueous molybdate solution, and contacting the surface with a second solution containing cerium. The copper is substantially removed from the surface in the first step either by (i) contacting the surface with an acidic chromate solution or by (ii) contacting the surface with an acidic nitrate solution while subjecting the surface to an electric potential. The corrosion-resistant surface resulting from the invention is excellent, consistent and uniform throughout the surface. Surfaces treated by the invention may often be certified for use in salt-water services.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: December 10, 1996
    Assignee: The University of Southern California
    Inventors: Florian B. Mansfeld, You Wang, Simon H. Lin