Patent ID: 9212033
Filing Date: 2015-12-15
Classification: B21C,B29C,B64C,B64F,B65H,B66D,F03D,F05B,Y02E,Y02P,Y10T

Abstract:
1. A drum for storing an electrically conductive tether having a first end secured to an aerial vehicle and a second end secured to a ground station, comprising: a drum frame rotatable about a drum axis; a drum surface positioned over the drum frame comprising a spiral extrusion wrapped around the drum frame; wherein the extrusion has a cross-section having an upper surface that is shaped to conform to an outer surface of the electrically conductive tether; and wherein the cross-section of the extrusion has a first air flow channel positioned above a lower surface of the cross-section and positioned below the upper surface of the cross-section for dissipating heat generated through a transfer of electricity from the aerial vehicle to the ground station through the electrically conductive tether.