4. Wells
  5. Submerged well
  6. Connection or disconnection of submerged members remotely...

Hans P. Hopper

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Annulus safety valve

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator
Patent

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Annulus shut-off mechanism

Wells – Submerged well – With safety or emergency shutoff
Patent

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Down hole electrically operated safety valve

Wells – With electrical means – Electrical motor
Patent

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Electrical cable assembly

Electrical connectors – Having retainer or passageway for fluent material – Liquid retainer
Patent

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Electrical connection

Electrical connectors – With coupling movement-actuating means or retaining means in... – Retaining means with distinct movement-actuating means to...
Patent

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Profile ID: LFUS-PAI-P-314736

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