Patents by Inventor Dale E. Steffens

Dale E. Steffens 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 tower water cleaning system
    Patent number: 6533942
    Abstract: A cooling tower water purification system uses an electrical cleaning method by passing water over or through an anode and a cathode. The pH of the water is monitored and adjusted using injected CO2 gas. The water can also be mechanically filter to remove the now dead biofilm and biomass as well as any scale or other debris. An additional embodiment can use an additional device such as a water jet to “stir” the bottom of the cooling tower to increase the efficiency of the filter in removing any built up or remaining biomass, scale or the like.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 18, 2003
    Assignee: TLC Envirotech, Inc.
    Inventors: Dale E. Steffens, James H. Joyner, Boyd R. Waddle
  • Cooling tower water cleaning system
    Publication number: 20020070178
    Abstract: A cooling tower water purification system uses an electrical cleaning method by passing water over or through an anode and a cathode. The pH of the water is monitored and adjusted using injected CO2 gas. The water can also be mechanically filter to remove the now dead biofilm and biomass as well as any scale or other debris. An additional embodiment can use an additional device such as a water jet to “stir” the bottom of the cooling tower to increase the efficiency of the filter in removing any built up or remaining biomass, scale or the like.
    Type: Application
    Filed: October 16, 2001
    Publication date: June 13, 2002
    Applicant: TLC Envirotech, Inc.
    Inventors: Dale E. Steffens, James H. Joyner, Boyd R. Waddle
  • Cooling tower water cleaning system
    Patent number: 6332979
    Abstract: A cooling tower water purification system uses an electrical cleaning method by passing water over or through an anode and a cathode. The pH of the water is monitored and adjusted using injected CO2 gas. The water can also be mechanically filter to remove the now dead biofilm and biomass as well as any scale or other debris. An additional embodiment can use an additional device such as a water jet to “stir” the bottom of the cooling tower to increase the efficiency of the filter in removing any built up or remaining biomass, scale or the like.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: December 25, 2001
    Assignee: TLC Envirotech, Inc.
    Inventors: Dale E. Steffens, James H. Joyner, Boyd R. Waddle