Patent ID: 8417188

Claim:
A method for communicating in a liquid petroleum product, the method comprising: providing a first communications device disposed in the liquid petroleum product; providing a second communications device remote from and separated from the first communications device by the liquid petroleum product; and transmitting radiofrequency (RF) communication signals embodying data between the first communications device and the second communications device through the liquid petroleum product to enable wireless communications between the first communications device and the second communications device; wherein: the first communications device is an unmanned submersible vehicle, and the method includes transiting the unmanned submersible vehicle through the liquid petroleum product; the second communications device is configured to emit radiofrequency (RF) control communication signals embodying commands to the unmanned submersible vehicle; the unmanned submersible vehicle is configured to receive and process the RF control communication signals from the second communications device; and the method includes transmitting the RF control communications signals from the second communications device to the unmanned submersible vehicle through the liquid petroleum product to enable remote wireless control of the unmanned submersible vehicle by the second communications device.