Patents by Inventor Paolo ZANNONI

Paolo ZANNONI 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).

  • Gas heater, method for operating the gas heater and a gas boiler
    Patent number: 11668493
    Abstract: A gas heater includes a premix burner, a supply channel for supplying a mixture of a gaseous fuel and air to the burner, and a check valve placed in the supply channel upstream of the burner. The check valve includes a moveable valve body having a first end position in which the check valve is opened and a second end position in which the check valve is closed. In a first pressure condition in which a pressure upstream is higher than a pressure downstream, the valve body is urged to the first end position. In a second pressure condition in which the pressure upstream is lower than the pressure downstream the valve body is urged to the second end position. After closure of the check valve the check valve remains closed for a delay time.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: June 6, 2023
    Assignee: BDR THERMEA GROUP B.V.
    Inventors: Marco Dal Gazzo, Sebastiano Temperato, Paolo Zannoni
  • GAS HEATER, METHOD FOR OPERATING THE GAS HEATER AND A GAS BOILER
    Publication number: 20200284473
    Abstract: A gas heater includes a premix burner, a supply channel for supplying a mixture of a gaseous fuel and air to the burner, and a check valve placed in the supply channel upstream of the burner. The check valve includes a moveable valve body having a first end position in which the check valve is opened and a second end position in which the check valve is closed. In a first pressure condition in which a pressure upstream is higher than a pressure downstream, the valve body is urged to the first end position. In a second pressure condition in which the pressure upstream is lower than the pressure downstream the valve body is urged to the second end position. After closure of the check valve the check valve remains closed for a delay time.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Applicant: BDR Thermea Group B.V.
    Inventors: Marco DAL GAZZO, Sebastiano TEMPERATO, Paolo ZANNONI