Patents by Inventor Delmer L. Radeztsky

Delmer L. Radeztsky 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).

  • Coolant recovery system
    Patent number: 4366069
    Abstract: A process for recovering an industrial coolant fluid from a contaminated mixture and restoring the recovered coolant fluid to a predetermined concentration level and an apparatus for carrying out the process are disclosed.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: December 28, 1982
    Assignee: Donaldson Company, Inc.
    Inventors: Denis J. Dudrey, John T. Herman, Girma Wolde-Michael, Delmer L. Radeztsky