4. Wells
  5. Packers or plugs
  6. With expanding anchor

Donald F. Taylor

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Automatic dump valve

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent

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Automatic dump valve

Fluid handling – Systems – With flow control means for branched passages
Patent

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Automatic dump valve

Fluid handling – Self-proportioning or correlating systems – Supply and exhaust type
Patent

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Collar lock and seal assembly for well tools

Wells – Packers or plugs – With expanding anchor
Patent

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Device for locking and unlocking two concentric pipes

Pipe joints or couplings – Frangible element
Patent

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Profile ID: LFUS-PAI-P-473954

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