Patents by Inventor Tom Gerretsen

Tom Gerretsen 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 burner regulating system
    Patent number: 6561791
    Abstract: The invention relates to a regulating system for a gas burner. Regulating systems for gas burners are used for guiding a gas flow and a combustion air flow to the burner. The gas flow can be regulated depending on combustion air pressure. Pressure is measured in known regulating devices with the aid of a membrane, that is pneumatically. The pneumatic pressure measurement limits the scope of application of known regulating devices. In the invention regulating device, a sensor (16) is arranged between a first line (10) guiding a gas flow and a second line (12) guiding the combustion air flow, an electric or electronic signal (19) being generated by the sensor that is used to regulate the gas valve (11).
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: May 13, 2003
    Assignee: Honeywell International Inc.
    Inventors: Enno Vrolijk, Tom Gerretsen