Patents by Inventor Betty A. Blankenship

Betty A. Blankenship 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).

  • High T.sub.c superconductor contact unit having low interface resistivity
    Patent number: 5179071
    Abstract: A high-T.sub.c superconductor contact unit having low interface resistivity is disclosed, as is a method for making the unit. An inert metal is deposited on the surface of the superconductor, which surface is preferably non-degraded, to form a unit with the surface of the superconductor, and where temperatures as high as 500.degree. C. to 700.degree. C. can be tolerated, the unit is oxygen annealed to establish a still lower surface resistivity between the surface of the high-T.sub.c superconductor and the inert metal, including a low surface resistivity of about 10.sup.-10 .OMEGA.-cm.sup.2 at high-T.sub.c superconductor operating temperatures. The superconductor is a metal-oxide superconductor, and may be rare earth, thallium, or bismuth based.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: January 12, 1993
    Assignees: The United States of America as represented by the Secretary of Commerce, Westinghouse Electric Corp.
    Inventors: John W. Ekin, Armand J. Panson, Betty A. Blankenship
  • High T.sub.c superconducting unit having low contact surface resistivity
    Patent number: 5149686
    Abstract: A high-T.sub.c superconducting unit is disclosed having low contact resistivity between a substantially non-degraded surface of the superconductor and a surface of a contact pad in engagement with the substantially non-degraded surface of the superconductor, with contact resistivity of less than 1000 .mu..OMEGA.-cm.sup.2 at high-T.sub.c superconductor operating temperatures being disclosed.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: September 22, 1992
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: John W. Ekin, Armand J. Panson, Betty A. Blankenship
  • High-T.sub.c superconductor contact unit having low interface resistivity, and method of making
    Patent number: 5015620
    Abstract: A high-T.sub.c superconductor contact unit having low interface resistivity is disclosed, as is a method for making the unit. An inert metal is deposited on the surface of the superconductor, which surface is preferably non-degraded, to form a unit with the surface of the superconductor, and where temperatures as high as 500.degree. C. to 700.degree. C. can be tolerated, the unit is oxygen annealed to establish a still lower surface resistivity between the surface of the high-T.sub.c superconductor and the inert metal, including a low surface resistivity of about 10.sup.-10 .OMEGA.-cm.sup.2 at high-T.sub.c superconductor operating temperatures. The superconductor is a metal-oxide superconductor, and may be rare earth, thallium, or bismuth based.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: May 14, 1991
    Assignees: The United States of America as represented by the Secretary of Commerce, Westinghouse Electric Corporation
    Inventors: John W. Ekin, Armand J. Panson, Betty A. Blankenship
  • High-T.sub.c superconducting unit having low contact surface resistivity and method of making.
    Patent number: 4963523
    Abstract: A low resistivity contact to a high-Tc superconductor is made by forming a contact pad on the surface of an abraded or freshly prepared superconductor by depositing an inert metal on the surface so that a surface resistivity between the surface of the high-Tc superconductor and the pad is established of less than about 1000.mu..OMEGA.-cm.sup.2 at high-Tc superconductor operating temperatures.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: October 16, 1990
    Assignees: The United States of America as represented by the Secretary of the Commerce, Westinghouse Electric Corporation
    Inventors: John W. Ekin, Armand J. Panson, Betty A. Blankenship