Patents by Inventor Quinn Thomas Keller

Quinn Thomas Keller 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).

  • Leakage detection in condensing water heater
    Patent number: 11573148
    Abstract: A water heater system includes a gas burner configured to selectively produce flue gases, and a heat exchanger for heating water in the water heater system. The water heater system is operable in a heating mode, and a standby mode. An exhaust assembly is in communication with the heat exchanger, and includes a condensate collector configured to receive the flue gases and condensate. A first temperature sensor is positioned to sense a temperature of the condensate within the condensate collector. The first temperature sensor is configured to detect a rate of temperature change of the condensate. A controller is configured to determine a leakage when the rate of temperature change adjusts from a first state to a second state when the water heater system is in the standby mode after the water heater system was in the heating mode.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: February 7, 2023
    Assignee: A. O. Smith Corporation
    Inventors: Jianmin Yin, Matthew W. Critchley, Quinn Thomas Keller
  • LEAKAGE DETECTION IN CONDENSING WATER HEATER
    Publication number: 20210048364
    Abstract: A water heater system includes a gas burner configured to selectively produce flue gases, and a heat exchanger for heating water in the water heater system. The water heater system is operable in a heating mode, and a standby mode. An exhaust assembly is in communication with the heat exchanger, and includes a condensate collector configured to receive the flue gases and condensate. A first temperature sensor is positioned to sense a temperature of the condensate within the condensate collector. The first temperature sensor is configured to detect a rate of temperature change of the condensate. A controller is configured to determine a leakage when the rate of temperature change adjusts from a first state to a second state when the water heater system is in the standby mode after the water heater system was in the heating mode.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 18, 2021
    Inventors: Jianmin Yin, Matthew W. Critchley, Quinn Thomas Keller