Patents by Inventor Don Halla

Don Halla 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).

  • Fuel storage tank leak prevention and detection system and method
    Patent number: 6834534
    Abstract: A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump that is also used to pump fuel to the fuel dispensers in the service station and therefore a separate vacuum generating source is not required. A sensing unit and/or tank monitor monitors the vacuum level in the interstitial space over time. If a significant vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum level, a catastrophic leak detection alarm is generated. If a minor vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum, a precision leak detection alarm is generated. Functional tests also ensure that the leak detection system is functioning properly.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: December 28, 2004
    Assignee: Veeder-Root Company
    Inventors: Don Halla, Richard Dolson, Robert P. Hart, Richard Lucas, Ray Hutchinson, Kent Reid
  • FUEL STORAGE TANK LEAK PREVENTION AND DETECTION SYSTEM AND METHOD
    Publication number: 20040182136
    Abstract: A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump that is also used to pump fuel to the fuel dispensers in the service station and therefore a separate vacuum generating source is not required. A sensing unit and/or tank monitor monitors the vacuum level in the interstitial space over time. If a significant vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum level, a catastrophic leak detection alarm is generated. If a minor vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum, a precision leak detection alarm is generated. Functional tests also ensure that the leak detection system is functioning properly.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Inventors: Don Halla, Richard Dolson, Robert P. Hart, Richard Lucas, Ray Hutchinson, Kent Reid