4. Bearings
  5. Rotary bearing
  6. Roller drill bit

Rodolfo M. Ippolito

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Cooled journal bearing

Boring or penetrating the earth – With heating or cooling drilling fluid
Patent

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Drill bit with dispersed cutter inserts

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Hydrodynamic bearing

Bearings – Rotary bearing – Fluid bearing
Patent

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Seal and bearing apparatus for bits

Bearings – Rotary bearing – Roller drill bit
Patent

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Wound wire bearing

Bearings – Rotary bearing – Roller drill bit
Patent

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Profile ID: LFUS-PAI-P-428954

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