Patents by Inventor Edward R. Lesko

Edward R. Lesko 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).

  • Condenser tube cleaning nozzle
    Patent number: 6609531
    Abstract: A condenser tube cleaning nozzle which is cushioned with resilient washers. The present invention provides a stiffened nozzle adapted to handling high pressure, while at the same time providing cushioning at all contact points on a tube sheet and within a particular tube being cleaned.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 26, 2003
    Inventor: Edward R. Lesko
  • Condenser tube cleaning nozzle
    Publication number: 20030056816
    Abstract: A condenser tube cleaning nozzle which is cushioned with resilient washers. The present invention provides a stiffened nozzle adapted to handling high pressure, while at the same time providing cushioning at all contact points on a tube sheet and within a particular tube being cleaned.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 27, 2003
    Inventor: Edward R. Lesko