Patents by Inventor Duane P. Koszalka

Duane P. Koszalka 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 of detoxification of substances by utilization of ultrasonic energy
    Patent number: 5198122
    Abstract: An improved method for detoxification of contaminated liquids or solid materials by the application of ultrasonic energy to the material in the presence of agents capable of initiating chemical reactions with toxic contaminants, which chemical reactions facilitate the removal of the toxic contaminants.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: March 30, 1993
    Assignee: Trinity Environmental Technologies, Inc.
    Inventors: Duane P. Koszalka, James F. Soodsma, Rebecca A. Bever
  • Method and apparatus for separating transformer core conductive metal from insulating paper
    Patent number: 5041211
    Abstract: A method and apparatus for salvaging conductive material from electrical power transformers. In the method, the transformer core is removed from the transformer casing and cut so as to separate laminations from windings. The windings with conductive materials and insulative paper are cut into relatively short segments. These segments are then subjected to an aqueous caustic solution with sparging for separating the conductive material from paper insulation and lacquer coatings thereon. The solution is treated with a coagulating or flocculating agent in a separate vessel to remove dissolved cellulose, processed to separate oil and PCBs therefrom and then returned to treat additional windings. The method is adapted to continuous processing.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: August 20, 1991
    Assignee: Trinity Chemical Company, Inc.
    Inventor: Duane P. Koszalka