US Patent 9598172 Aerial material distribution device

A device is provided. The device includes one or more electric sifters externally mounted to an aircraft and configured to store a payload. Each electric sifter includes a loading port to add the payload and a distribution apparatus to distribute the payload when the aircraft is airborne. The device also includes an uploaded program, configured to control the aircraft and the device. The uploaded program directs the aircraft to land at a designated location in response to a payload of a designated one of the one or more electric sifters reaching a predetermined level. In response to the device receives a command to activate the distribution apparatus, the distribution apparatus distributes the payload from the device.