Patents Assigned to Aktiebolaget Svensk Eldental
  • Brush head, a method and a machine for manufacturing thereof
    Patent number: 4869277
    Abstract: A brush head for cleaning and massaging the teeth and gums is disclosed having a bundle of fibers welded together to form a bottom plate, with a central axial tunnel expending part way into the fiber bundle, similarly made up of welded fibers. The brush head is produced by partially melting one end of the fiber bundle to form the bottom plate, with the bundle moved into contact with a heated mandrel, while the fibers remain substantially parallel.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: September 26, 1989
    Assignee: Aktiebolaget Svensk Eldental
    Inventor: Hans Olsen
  • Battery operated tooth brush
    Patent number: D278764
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: May 14, 1985
    Assignee: Aktiebolaget Svensk Eldental
    Inventor: Hans Olsen
  • Set of brush heads for mounting in a dental unit
    Patent number: D295801
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: May 24, 1988
    Assignee: Aktiebolaget Svensk Eldental
    Inventor: Hans Olsen