4. Valves and valve actuation
  5. With material guide or restrictor
  6. Movable or resilient guide or restrictor

Cameron Iron Works USA Inc.

Corporate Assignee

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Actuated gate valve with manual override

Valves and valve actuation – Fluid actuated or retarded – Fluid and non-fluid actuators
Patent

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Annular wellhead seal

Wells – Processes – Placing or shifting well part
Patent

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Annulus valve for concentric tubing hangers

Wells – Above ground apparatus – Inner member anchor or seal with valve
Patent

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Apparatus for joining pipe

Metal working – Means to assemble or disassemble – Coupling to conduit
Patent

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Blowout preventer testing apparatus

Wells – Above ground apparatus – Inner member anchor or seal with valve
Patent

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