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Actuatable safety valve for wells and flowlines

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

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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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Actuator activating on-off valves

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

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Adapter bracket for making a valve fire safe

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

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Angular pivoting power steering device

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

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Anti-icing actuator assembly for pneumatic valve

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

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Apparatus for moving a controlled member to a predetermined posi

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

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Automatic valve actuator and control system

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

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Bellows sealed rotary valve and seal assembly

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

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Choke

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

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Declutchable valve override

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

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Diaphragm drive for controlling the operation of a gas burner

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

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Disc drive shocking station with high speed spool valve...

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

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Electromechanical/pneumatic rocket engine valve actuator

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

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Electronic water flow control device

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

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Expansion valve of an air conditioning system in an automobile

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

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Fail safe gate valves and actuators therefor

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

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Fail-close hydraulically actuated control choke

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

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Fail-safe actuator and hydraulic system incorporating the same

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

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Fail-safe actuator and hydraulic system incorporating the same

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

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