Patent ID: 11884397
Assignee: WORKHORSE GROUP INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. A method for releasing a parcel from an unmanned aerial vehicle (UAV), wherein the parcel is engaged with a hook that is attached to a line suspended from the UAV, the method comprising:
lowering the hook such that the parcel is at least partially supported by a target surface, thereby performing an attempt to release the parcel from the hook; and
performing at least one iteration of an iterative procedure, the iterative procedure comprising:
raising the hook;
determining whether the line remains loaded;
in response to a determination that the line remains loaded, lowering the hook an additional time, thereby performing an additional attempt to release the parcel from the hook; and
in response to the number of attempts failing to satisfy a threshold number of attempts, performing an additional iteration of the iterative procedure.