Patents Represented by Attorney A. Thomas Kammer

Find this attorney in the Justia Lawyer Directory

  • Closure assembly
    Patent number: 4444331
    Abstract: A closure assembly is provided for high pressure applications. It includes a hollow cylindrical member having a beveled end for welding to a pressure vehicle and a threaded end for receiving a cap. An annular projection extends from the threaded end and includes a O-ring for sealing purposes. The projection has relatively thin walls which allow it to dilate under pressure and provide an excellent seal.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: April 24, 1984
    Assignee: Gulf & Western Manufacturing Co.
    Inventor: Robert J. Lankston
  • Cam activated planetary turning machine
    Patent number: 4423991
    Abstract: An apparatus for turning or milling a workpiece is provided. The apparatus includes a first sleeve having an eccentric bore and a second sleeve positioned within this bore. The second sleeve also has an eccentric bore within which a tool mandrel or spindle is rotatably positioned. The sleeves are rotatable both as a unit and with respect to each other. When rotated with respect to each other, the axis of the mandrel may be moved off center to permit the turning or milling of the workpiece.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: January 3, 1984
    Assignee: Gulf & Western Manufacturing Company
    Inventor: Ralph Derr, Jr.
  • Chair
    Patent number: D264402
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: May 18, 1982
    Inventor: John Yellen