Patents Assigned to Nortti-Tuote Oy
  • Means for automatic closing and opening of the air intake duct of an oil burner
    Patent number: 4244685
    Abstract: The shaft of an oil burner drive motor carries a plate and means responsive to stopping of the shaft for moving the plate axially of the shaft in a direction to close the air intake duct and responsive to starting of the shaft for moving the plate axially in a direction to open the air intake duct.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: January 13, 1981
    Assignee: Nortti-Tuote Oy
    Inventor: Paavo Lahtinen