Battery charging arrangement for unmanned aerial vehicle utilizing the electromagnetic field associated with utility power lines to generate power to inductively charge energy supplies

A method of charging energy supplies in an airborne unmanned aerial vehicle, the method comprising:

• providing a battery augmentation trap attached to the unmanned aerial vehicle, the battery augmentation trap comprising;
• a releasable latch, and
• an inductive charging device for charging the energy supplies,
• perching the unmanned aerial vehicle on a utility power line by maneuvering the airborne unmanned aerial vehicle so that the releasable latch of the unmanned aerial vehicle secures the utility power line within the releasable latch after which the utility power line supports the unmanned vehicle;
• and
• charging the energy supplies with the inductive charging device utilizing the electromagnetic field associated with the utility power line to generate power for the energy supplies,
• wherein the unmanned aerial vehicle is a vertical launch rotorcraft vehicle, the method further comprising:
• opening the releasable latch to release the unmanned aerial vehicle after charging the energy supplies with the inductive charging device;
• launching the unmanned aerial vehicle into an airborne state;
• providing a propulsion system having a hollow rotor shaft and one or more horizontal rotors, wherein before the releasable latch is opened, the one or more horizontal rotors are rotated to a launching velocity to produce lift forces on the unmanned aerial vehicle,
• wherein in the providing of the battery augmentation trap, the battery augmentation trap is attached to the vehicle body above the one or more horizontal rotors and positioned above the center of gravity of the vehicle and positioned along a vertical axis about which the one or more horizontal rotors rotate, wherein said vertical axis extends through the center of gravity of the vehicle, so that in the step of perching the unmanned aerial vehicle is supported by the latch such that the one or more horizontal rotors are maintained in a substantially horizontal orientation.

An unmanned aerial vehicle comprising:

• a vehicle body including a vertical reference line and a horizontal reference line, the vehicle body having;
• a base portion;
• a propulsion system;
• a battery augmentation trap, the battery augmentation trap comprising;
• an inductive charging device for charging energy supplies;
• and
• a releasable latch for releasably holding a utility power line, the battery augmentation trap attached to the vehicle body above the center of gravity of the vehicle body along a substantially vertical line through the center of gravity, wherein when the releasable latch holds the utility power line, the unmanned aerial vehicle is supported by the latch such that the horizontal reference line of the vehicle body and vertical reference line of the vehicle body are maintained in substantially horizontal and substantial vertical orientations respectively the vehicle body further having;
• a battery augmentation trap mount for mounting the battery augmentation trap above the center of gravity of the vehicle body, the battery augmentation trap mount attached to the base portion, wherein the propulsion system includes a hollow rotor shaft and one or more horizontal rotors attached to the rotor shaft, wherein the battery augmentation trap is located above the one or more horizontal rotors, the battery augmentation trap attached to the battery augmentation trap mount, the mount at least partially within the hollow rotor shaft, wherein when the releasable latch holds the utility power line the one or more horizontal rotors are positioned to rotate without contacting the utility power line.

An unmanned aerial vehicle comprising:

• a vehicle body including a vertical reference line and a horizontal reference line, the vehicle body having;
• a propulsion system;
• an inductive charging device for charging energy supplies;
• and
• a releasable latch for releasably holding a utility power line, the releasable latch attached to the vehicle body above the center of gravity of the vehicle body along a substantially vertical line through the center of gravity, wherein when the releasable latch holds the utility power line, the unmanned aerial vehicle is supported by the latch such the that horizontal reference line of the vehicle body and vertical reference line of the vehicle body are maintained in substantially horizontal and substantial vertical orientations respectively, wherein the vehicle body includes an upper portion, wherein the inductive charging device is located on the upper portion to maximize the effects of the electromagnetic field emanating from the utility power line, and wherein the unmanned aerial vehicle is a helicopter and the inductive charging device is located on a tail boom portion of the helicopter.

An unmanned aerial vehicle comprising:

• a vehicle body including a vertical reference line and a horizontal reference line, the vehicle body having;
• a vertical launch propulsion system having one or more rotors, wherein in an upright orientation the one or more rotors substantially coincide with the horizontal reference line and are rotatable about the vertical reference line;
• an inductive charging device for charging energy supplies;
• a releasable latch for releasably holding a utility power line, wherein in the upright orientation the releasable latch is attached to the vehicle body above the one or more rotors and positioned above the center of gravity of the vehicle and positioned along the vertical reference line about which the one or more rotors rotate, wherein the vertical reference line extends through the center of gravity of the vehicle.