Patents Assigned to Sterner Aero Aktiebolag
  • Patent number: 4099689
    Abstract: Method of spreading fertilizer, plant killer, or similar agents from an aircraft which includes the provision of a mobile station that receives a plurality of containers from which the agents are to be dispersed. The containers are filled at the station and moved on carrying means at the station to where they are to be subsequently lifted by the aircraft and the agents dispersed therefrom. The emptied container is returned to the station behind the filled container by the aircraft, disconnected therefrom, and the aircraft thereafter picks up a filled container.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: July 11, 1978
    Assignee: Sterner Aero Aktiebolag
    Inventors: Thore Sterner, Arne Johansson
  • Patent number: 4099676
    Abstract: Apparatus for spreading fertilizer, plant killer, or similar agents from an aircraft which includes a container in which the agents are disposed, which container contains at its lower end rotating dispersion means for spreading agents to the surrounding area. The container further includes stabilizing means secured thereto for keeping the container in a predetermined attitude relative to the aircraft while maintaining the central axis of the container in substantially vertical position. The position of the container will be maintained independent of the amount of agent in the container and the flying speed of the aircraft.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: July 11, 1978
    Assignee: Sterner Aero Aktiebolag
    Inventors: Thore Sterner, Arne Johansson