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Hydraulic valves with dual feedback control

Fluid handling – Systems – Multi-way valve unit
Patent

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Hydraulic vent valve

Fluid handling – With liquid valves or liquid trap seals – Liquid valves
Patent

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Hydraulic volumetric proportioning valve

Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent

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Hydraulic, automatically adjustable timing device for fuel injec

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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Hydraulic-metering multiple valve

Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent

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Hydraulic-pneumatic control device for controlling the flow of a

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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Hydraulically actuatable directional control valve

Fluid handling – Systems – Multi-way valve unit
Patent

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Hydraulically actuated spool valve

Fluid handling – Systems – Multi-way valve unit
Patent

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Hydraulically balanced marine loading arm

Fluid handling – Systems – Articulated or swinging flow conduit
Patent

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Hydraulically balanced valve mechanism

Fluid handling – With leakage or drip collecting
Patent

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Hydraulically controlled maneuvering device

Fluid handling – Systems – Programmer or timer
Patent

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Hydraulically controlled valve for a cool tower and the like

Fluid handling – With leakage or drip collecting
Patent

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Hydraulically controlled water spool valve

Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent

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Hydraulically cushioned pressure relief value

Fluid handling – Line condition change responsive valves – Fluid opened valve requiring reset
Patent

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Hydraulically energized wireline blowout preventer

Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Liquid supplied at valve interface
Patent

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Hydraulically limited fuel injection nozzle

Fluid handling – Line condition change responsive valves – Line flow effect assisted
Patent

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Hydraulically operated directional control valve

Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate

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Hydraulically operated pressure relief valve

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Hydraulically trippable check valve for underground mine support

Fluid handling – Systems – Sequentially progressive opening or closing of plural valves
Patent

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Hydraulically unblockable non-return valve

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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