Patent Appeal No. 6791. April 11, 1962. Edward J. Willey, New York City (Samuel Stearman, New York City, of counsel), for appellants. Clarence W. Moore, Washington, D.C. (Jere W. Sears, Washington, D.C., of counsel), for Com'r. of Patents. Before WORLEY, Chief Judge, RICH, MARTIN, and SMITH, Judges, and Judge WILLIAM H. KIRKPATRICK. United States Senior District Judge for the Eastern District of Pennsylvania, designated to participate in place of Judge O'CONNELL, pursuant to provisions of Section