Patents by Inventor Benjamin P. Putnam

Benjamin P. Putnam 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).

  • Modulating burner with venturi damper
    Patent number: 10161627
    Abstract: A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 25, 2018
    Assignee: Lochinvar, LLC
    Inventors: Mohamed Mehdi Doura, Benjamin P. Putnam, Dave C. Baese, Robert Wesley Wiseman
  • Modulating Burner With Venturi Damper
    Publication number: 20170328559
    Abstract: A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 16, 2017
    Inventors: Mohamed Mehdi Doura, Benjamin P. Putnam, Dave C. Baese, Robert Wesley Wiseman
  • Modulating burner with venturi damper
    Patent number: 9746176
    Abstract: A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 29, 2017
    Assignee: Lochinvar, LLC
    Inventors: Mohamed Mehdi Doura, Benjamin P. Putnam, Dave C. Baese, Robert Wesley Wiseman
  • Modulating Burner With Venturi Damper
    Publication number: 20150354809
    Abstract: A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 10, 2015
    Applicant: Lochinvar, LLC
    Inventors: Mohamed Mehdi Doura, Benjamin P. Putnam, Dave C. Baese, Robert Wesley Wiseman
  • Air transfer arm for boiler
    Patent number: 7824178
    Abstract: A water heater apparatus includes a fuel-air transfer arm connecting a blower outlet to a burner inlet. The transfer arm includes a continuously curved 180° bend portion and at least one inwardly extending internal flow disrupter located in the 180° bend portion for improving fuel-air mixture distribution across the burner inlet.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: November 2, 2010
    Assignee: Lochinvar Corporation
    Inventors: Benjamin P. Putnam, Dustin C. Wiggins