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Fluid motor
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Pump
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Standing valve puller
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Single duct, hydropneumatic, welltool actuator
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Rotary pump for hot fluids
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Balancing and leakage device for centrifugal pumps
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Valve construction
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Duplex high pressure rotary pump
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Seal for rotating shafts
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Seal for rotating shafts
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Packing structure for hot liquid pumps
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Packing structure for turbine pumps
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Pressure reducing seal for centrifugal pumps
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Sealing device
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Nonlubricated bearing
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Intermediate bearing construction
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Turbine pump support
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Device for preventing short circuiting flow around impellers
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|
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Centrifugal impeller locking thrust eliminating means
|
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US1873267A
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Cooling arrangement for packing boxes
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