Patent attributes
The underground fuel tank indicator flag may comprise a stanchion and a flag. The underground fuel tank indicator flag may mark the location of a filler port where a tanker truck would couple to an underground fuel tank to add fuel to the underground fuel tank. The underground fuel tank indicator flag may convey at least one attribute of the fuel in the underground fuel tank. As non-limiting examples, the attribute may indicate the fuel type, an octane rating, or a fuel blend. The underground fuel tank indicator flag may be resilient such that a vehicle could drive over the stanchion and the stanchion will restore itself to a vertical orientation when the vehicle is moved off of the underground fuel tank indicator flag. In some embodiments, the underground fuel tank indicator flag may utilize multiple colors on the flag and/or a second flag.
