Patent ID: 8920203

Claim:
A marker buoy for marking and maintaining a location on a surface of a water body above an anchor deployed in the water body, the marker buoy comprising: a housing including a substantially watertight compartment, the housing also comprising a spool bay; a spool including a spool body, the spool rotatably mounted in the spool bay; a line wound onto the spool, the line adapted for attachment to an anchor; an electric motor mounted within the substantially watertight compartment of the housing; a clutch rotatably coupled between the spool and the electric motor, the clutch coupleable to the spool permitting rotation of the spool with rotation of the clutch; a battery mounted within the substantially watertight compartment of the housing, the battery connected to the electric motor; and a control device conductively connected to the battery and the electric motor, the control device configured to activate the electric motor in response to a tilting of the housing of the marker buoy.