Patents by Inventor Michael Dupay

Michael Dupay 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).

  • Compact fire-extinguishing system with high-pressure foam proportioning system
    Patent number: 9149671
    Abstract: A compact, stand-alone fire-extinguishing system for use with a water source is disclosed. The fire-extinguishing system can include an engine, a pump, a foam tank, a flow meter, and a foamant adjustment valve. The flow meter can be a variable area flow meter and indicate an instantaneous concentration of a water-foamant solution. The foamant adjustment valve can be a needle valve. A head injector can be coupled to the pump. The head injector provides foamant to be mixed with water inside the pump to create a water-foamant solution. The fire-extinguishing system may also include an inlet mixing valve assembly and an unloader valve to recirculate the water-foamant solution.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: October 6, 2015
    Assignee: Fire Research Corp.
    Inventors: Robert L. Hosfield, Michael Dupay, Kurt Mehrkens
  • Compact Fire-Extinguishing System with High-Pressure Foam Proportioning System
    Publication number: 20110226494
    Abstract: A compact, stand-alone fire-extinguishing system for use with a water source is disclosed. The fire-extinguishing system can include an engine, a pump, a foam tank, a flow meter, and a foamant adjustment valve. The flow meter can be a variable area flow meter and indicate an instantaneous concentration of a water-foamant solution. The foamant adjustment valve can be a needle valve. A head injector can be coupled to the pump. The head injector provides foamant to be mixed with water inside the pump to create a water-foamant solution. The fire-extinguishing system may also include an inlet mixing valve assembly and an unloader valve to recirculate the water-foamant solution.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 22, 2011
    Inventors: Robert L. Hosfield, Michael Dupay, Kurt Merhkens