Patents by Inventor Edward J. Opersteny

Edward J. Opersteny 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).

  • Methods for preparing tube sheets for permeators having hollow fiber membranes
    Patent number: 4369605
    Abstract: A high degree of openness to the bores of hollow fiber membranes in a tube sheet can be achieved by impacting the region of the tube sheet at which hollow fiber membranes terminate with a particulate abrasive having an average maximum dimension of less than about 70 percent of the minimum dimension of the bores of the hollow fiber membranes. The particulate abrasive is impacted on the tube sheet at a velocity sufficient to erode the surface of the hollow fiber membranes.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: January 25, 1983
    Assignee: Monsanto Company
    Inventors: Edward J. Opersteny, Alfred K. Fritzsche