4. Valves and valve actuation
  5. Reciprocating valve
  6. Gate

Paul D. Bunch

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Composite pipe assembly and method for preparing the same

Pipes and tubular conduits – Combined – With end structure
Reexamination Certificate

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Gate valve

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Gate valve with improved secondary body to bushing seals

Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent

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Stress distributing wellhead connector

Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate

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Valve and stem seal therefor

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

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Profile ID: LFUS-PAI-P-426386

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