Methods for performing tasks in a tank containing hazardous substances

A method of performing a selected task in a tank containing an energetic substance uses an inherently safe mobile platform that includes a marker detector, a control unit, a power supply, a propulsion system, and an inherently safe enclosure. The inherently safe enclosure prevents a spark occurring...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Daily, Joseph A, Cheuvront, David L, Cassimatis, David John, Meyers, John W, Lovelace, James Todd, Gillory, Ronald
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES CONTROLLING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A method of performing a selected task in a tank containing an energetic substance uses an inherently safe mobile platform that includes a marker detector, a control unit, a power supply, a propulsion system, and an inherently safe enclosure. The inherently safe enclosure prevents a spark occurring inside the inherently safe enclosure from passing to an exterior of the inherently safe enclosure. All spark-generating components of the mobile platform are positioned inside the inherently safe enclosure. The method includes lowering the mobile platform into the tank, at least partially submerging the mobile platform in the energetic substance, and detecting a marker using the marker detector. No active physical carrier connects the mobile platform to an object exterior of the tank while the mobile platform is in the tank.