4. Pumps
  5. Expansible chamber type
  6. Valved piston

Richard A. Schultz

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Air-hydraulic pump with auxiliary pumping means

Pumps – With condition responsive pumped fluid control – Plural pump units with individual or relative control
Patent

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Casing stabbing apparatus

Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent

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Constant current vacuum regulator

Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent

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Hydraulic fluid supply unit

Machines not elsewhere specified – Pump or compressor
Patent

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Proportional and latching pressure control device

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent

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Profile ID: LFUS-PAI-P-767879

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