METHOD OF REDUCING VOLTAGE DIFFERENTIAL USED WHILE MOBILE PLATFORM IS RETRIEVED FROM TANK CONTAINING HAZARDOUS NON-CONDUCTIVE SUBSTANCE

To provide a method of safely retrieving a mobile platform from a tank containing a hazardous non-conductive substance.SOLUTION: A mobile platform includes an enclosure, a control unit, a propulsion system, a power supply, and a retrieval system. A buoyant body (702) of the retrieval system is relea...

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Bibliographische Detailangaben
Hauptverfasser:	DAVID L CHEUVRONT, RONALD GILLORY, JOHN W MEYERS, ROBERT T EFFINGER IV, DONALD A PONTRELLI, JAMES TODD LOVELACE, DAVID JOHN CASSIMATIS, JOSEPH A DAILY
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES HANDLING THIN OR FILAMENTARY MATERIAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION STORING TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide a method of safely retrieving a mobile platform from a tank containing a hazardous non-conductive substance.SOLUTION: A mobile platform includes an enclosure, a control unit, a propulsion system, a power supply, and a retrieval system. A buoyant body (702) of the retrieval system is released to carry a tether (1100) toward a surface (1116) of a non-conductive liquid energetic substance (12). A conductive cable (1304) is carried to a conductive member of the mobile platform, using the tether. A voltage neutralizing end (1306) of the conductive cable is electrically connected to a voltage differential neutralizing body (1302) under a spark inhibition ambient condition. While the conductive member (1300) is below the surface of the non-conductive liquid energetic substance, a mobile platform end (1308) of the conductive cable is electrically connected to the conductive member of the mobile platform, and then the mobile platform is retrieved from the inside to the outside of a tank.SELECTED DRAWING: Figure 22 【課題】危険な非導電性物質を収容するタンクから移動プラットフォームを安全に回収する方法を提供する。【解決手段】移動プラットフォームは、筐体と、制御ユニットと、推進システムと、電源と、回収システムと、を備えている。回収システムの浮力体（７０２）を解放して、非導電性の液体エネルギー物質（１２）の表面（１１１６）に向けてテザー（１１００）を運び、テザーを使用して、移動プラットフォームの導電性部材に導電性ケーブル（１３０４）を運び、導電性ケーブルの電圧中和端部（１３０６）を、火花阻害周囲条件で電圧差動中和体（１３０２）に電気的に接続し、導電性部材（１３００）が非導電性の液体エネルギー物質の表面の下方にある間に、導電性ケーブルの移動プラットフォーム端部（１３０８）を移動プラットフォームの導電性部材に電気的に接続し、移動プラットフォームをタンクの内側から外側へ回収する。【選択図】図２２