Patents Assigned to Danfoxx A/S
  • Patent number: 5090895
    Abstract: For reducing the unwanted escape (dripping) of oil from a burner nozzle, nozzle holder, oil warmer apparatus is provided to continuously regulate the oil temperature during operation of a oil fired heating system to maintain a nearly constant oil volume in the nozzle holder, oil warmer unit. The apparatus includes a pair of oil pipes that are encapsulated and connected between the nozzle and pump connections, there being a pair of heating elements that are also encapsulated for heating the oil pipes. The first heating element is permanently energized during the operation of the heating system while the second heating element is energized only when oil is being feed to the burner nozzle.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: February 25, 1992
    Assignee: Danfoxx A/S
    Inventors: Per F. Jensen, Ingvard M. Madsen, Leif B. Bonnerup