Patent ID: 8756992

Claim:
A foam and aerated slurry level detector comprising: a sleeve mountable to a vessel and extendable through a wall defined by the vessel into an interior area defined by the vessel, the sleeve being mountable at an angle of less than forty-five degrees relative to the wall defined by the vessel; a level sensing probe configured to measure a plurality of foam and aerated slurry levels in the vessel, to extend into a bore defined by an inside surface of the sleeve, and to communicate with the interior area via at least one opening in the sleeve which extends into the bore; at least one connector positioned outside of the vessel and configured to removably support the level sensing probe within the bore; a liquid level sensor mounted to the vessel and extended through the wall into the interior area of the vessel to measure liquid level; and a comparator module in communication with the liquid level sensor and the level sensing probe to determine a foam and aerated slurry level by subtracting a liquid level measured generated by the liquid level sensor, from another level measurement generated by the level sensing probe.