Patents by Inventor Daniel B. Martinson

Daniel B. Martinson 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).

  • Fuel heater
    Patent number: 4722314
    Abstract: An apparatus for heating liquid fuel for an internal combustion engine has a heat exchanger equipped with a fileter for removing vapors generated during the heating of the fuel in the heat exchanger. The controller has a finger movable into a passage with a temperature responsive actuator. The hot fuel from the heat exchanger heats the temperature responsive actuator to control the flow of heating fluid to the heat exchanger.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: February 2, 1988
    Assignee: Northwest Investments
    Inventor: Daniel B. Martinson