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Kelly cock rotary drive mechanism

Valves and valve actuation – Limit stop – Rotary valve
Patent

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Kelly valving apparatus

Valves and valve actuation – Fluid actuated or retarded – With mechanical movement between actuator and valve
Patent

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Key button type of water tap

Valves and valve actuation – Biased trip – Mechanical movement trip actuation
Patent

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Key for operating ball valves

Valves and valve actuation – Detachable actuator – Rotary valve
Patent

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Keyed cap for gas outlet valve

Valves and valve actuation – With correlated flow path – Valve operated by joining flow path sections
Patent

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Keying means for segmented end ring blowout preventer

Valves and valve actuation – Blow-out preventers
Patent

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Knife gate valve

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Knife gate valve

Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate

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Knife gate valve

Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate

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Knife gate valve having elastomeric gate and chest seals

Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate

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Knife gate valve with mechanically retained gate seat

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Knife gate valve with semi-hard, resilient seat

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Knife valve

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Knifegate valve

Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Patent

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Knob for gas apparatus with safety button

Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Reexamination Certificate

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