Patents by Inventor Robert William Biederstadt

Robert William Biederstadt 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).

  • Cooling pocket for a rotary drum cooler having a flexible vent pipe assembly
    Patent number: 6143137
    Abstract: A rotary drum cooler for cooling particulate material (e.g. coke particles) having at least one cooling pocket which, in turn, includes a flexible vent pipe assembly which can slide in relation to the shell of the cooler. By making the vent pipe slidable, it can move in response to the expansion and contraction of the pocket within the shell. The vent pipe assembly is comprised of (a) a tube which is connected to the pocket and which slidably extends through an aperture in the shell and (b) a flexible means for sealingly connecting the outer end of the tube to the shell.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: November 7, 2000
    Assignee: Atlantic Richfield Company
    Inventors: Ralph Gerstenkorn, Robert William Biederstadt, Jack Richard Highlander, Jr., John William Daly