Patents by Inventor Robert Roeland

Robert Roeland 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 internally electropolishing tubes
    Patent number: 4705611
    Abstract: An apparatus for internally electropolishing tubes in which a plurality of elongate tubes are horizontally supported and rotatably driven about their length axes. An outlet fitting including an end dam permits rotation of the tube outlet end therein, allows escape of gases from the upper portion of the tube, and permits overflow of electrolyte liquid thereover and fixedly supports the end of a cathode rod. The cathode rod is formed as two aligned, axially adjacent partial length sections. The positive terminal of an electric current supply connects at a plurality of points to the tube along its length and connects at its negative terminal individually to the outer ends of the two cathode sections.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: November 10, 1987
    Assignee: The Upjohn Company
    Inventors: Thomas L. Grimes, Robert Roeland, Frederic H. Schadewald
  • Apparatus for internally electropolishing tubes
    Patent number: 4601802
    Abstract: An apparatus for internally electropolishing tubes in which a plurality of elongate tubes are horizontally supported and rotatably driven about their length axes. An outlet fitting including an end dam permits rotation of the tube outlet end therein, allows escape of gases from the upper portion of the tube, and permits overflow of electrolyte liquid thereover and fixedly supports the end of a cathode rod. The cathode rod is formed as two aligned, axially adjacent partial length sections. The positive terminal of an electric current supply connects at a plurality of points to the tube along its length and connects at its negative terminal individually to the outer ends of the two cathode sections.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: July 22, 1986
    Assignee: The Upjohn Company
    Inventors: Thomas L. Grimes, Robert Roeland, Frederic H. Schadewald