4. Pipe joints or couplings
  5. With means blocking release of holding means
  6. Lock nut or washer

Douglas B. Owen

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Coal burning grate

Stoves and furnaces – Grates – Reciprocating
Patent

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Downhole pump with check valve

Pumps – With condition responsive pumped fluid control – Bypass or relief valve part carried by or carries...
Patent

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Fluid driven successive stage bladder pump

Pumps – Motor driven – Fluid motor
Patent

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Fluid driven successive stage bladder pump

Pumps – Successive stages
Patent

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Fluid transfer module with multiple flow paths

Pipe joints or couplings – With means blocking release of holding means – Lock nut or washer
Patent

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Profile ID: LFUS-PAI-P-444950

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