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US3513715A
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Speed changing mechanism
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US3275226A
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Thrust balancing and entrapment control means for screw type compressors and similardevices
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US3289600A
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Helically threaded rotors for screw type pumps, compressors and similar devices
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US3151806A
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Screw type compressor having variable volume and adjustable compression
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US3138110A
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Helically threaded intermeshing rotors
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US2982221A
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Gear pump
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US2922377A
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Multiple arc generated rotors having diagonally directed fluid discharge flow
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US2486770A
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Arc generated thread form for helical rotary members
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US2460957A
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Housing joint
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US2473234A
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Helical asymmetrical thread forms for fluid devices
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|
US2404262A
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Servomotor and control
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|
US2480818A
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|
Helical rotary fluid handling device
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US2442254A
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Composite metal article
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US2345780A
|
|
Reversing valve
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|
US2473233A
|
|
Rotor generating
|
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US2444391A
|
|
Fluid motor operated valve
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US2355253A
|
|
Bolt and lock nut
|
|
US2301350A
|
|
Pneumatic conveyer
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|
US2287716A
|
|
Fluid device
|
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US2193849A
|
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Apparatus for blowing insulating material
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