Patents by Inventor Sune O Pettersson

Sune O Pettersson 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).

  • Device in burners
    Patent number: 4484887
    Abstract: Devices in burners, for examples oil burners, with a feed tube (12) and a burner retainer (13,15) inserted into the same. The air stream in the feed tube is made to be affected by a retarding shield (20) positioned ahead of the burner retainer (13,15) and having a central aperture for the flame and a substantially circularly surrounding gap (18) between the retarding shield (20) and the inner periphery of the feed tube, and by a flange (19) extending rectangularly inwards from said inner periphery and which is positioned in spaced relation to the retarding shield in the direction of flow of the air.
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: November 27, 1984
    Assignee: AB Allterm
    Inventor: Sune O Pettersson