Patent ID: 9731839
Date: 2017-08-15
CPC Classifications: B64C,B64D

Claim:
1. An unmanned aerial vehicle (“UAV”) apparatus, comprising: a plurality of propulsion mechanisms that generate a lift sufficient to enable aerial navigation of the UAV and a payload; a frame that extends around a perimeter of the plurality of the propulsion mechanisms; a payload engagement mechanism configured to selectively engage and disengage the payload such that the payload can be aerially transported by the UAV to a delivery area when the payload is engaged by the payload engagement mechanism and such that the payload can be delivered to a delivery location within the delivery area when the payload engagement mechanism releases the payload; a delivery shroud coupled to the frame and positioned around the plurality of propulsion mechanisms; and a delivery shroud controller configured to selectively: wherein the delivery shroud reduces a transmission of a sound generated by the aerial vehicle toward the delivery area.