Patent ID: 8368560

Claim:
An automated warning system, comprising a linear actuator having a motor operated shaft and a limit switch, the motor operated shaft of the linear actuator being configured for linear extension and retraction, the limit switch being configured to monitor and control the extension and retraction of the linear actuator; one or more relays connected in power delivery relation to the linear actuator, the one or more relays being in operative electrical communication with the limit switch of the linear actuator; a receiver/controller connected in controlling relation to the one or more relays; a flag holder; and a mechanical linkage coupled to and positioned between the flag holder and the actuator, wherein the mechanical linkage is coupled to the flag holder and the linear actuator such that linear movement of the linear actuator effects a corresponding movement of the flag holder about and between a lowered position and a raised position, wherein the raised position of the flag holder corresponds to movement of the linear actuator by a first preset length, and wherein, upon movement of the linear actuator by the first preset length, the limit switch is configured to deenergize the one or more relays.