LandOfFree - US Patents - Listing for Rotary expansible chamber devices

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Wing motor having non-radial roller slats

Rotary expansible chamber devices – Vane or abutment comprises rotatable element

Patent

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Wobble plate pump

Rotary expansible chamber devices – Nutating working member – Working member common to plural working chambers

Patent

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Wobble plate pump

Rotary expansible chamber devices – Nutating working member – Working member common to plural working chambers

Patent

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Wobble plate pump with side chambers through which fluid flows

Rotary expansible chamber devices – Nutating working member – Working member common to plural working chambers

Patent

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Wobble pump

Rotary expansible chamber devices – Nutating working member – Working member common to plural working chambers

Patent

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Wobblestick with helix

Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers

Reexamination Certificate

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Work machine

Rotary expansible chamber devices – Working member has planetary or planetating movement

Patent

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Working member of a helical downhole motor for drilling wells

Rotary expansible chamber devices – Unlike helical surfaces on relatively wobbling rotating...

Patent

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Worm for an eccentric screw pump or a subsurface drilling motor

Rotary expansible chamber devices – Unlike helical surfaces on relatively wobbling rotating...

Reexamination Certificate

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Worm pump for thick media and/or media containing lumps, e.g. me

Rotary expansible chamber devices – Helical working member

Patent

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Worm type compressor with compressed fluid escape grooves

Rotary expansible chamber devices – With supply or exhaust passage in working member

Patent

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Worm-drive compressor

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone

Patent

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Worm-type rotary fluid compressor

Rotary expansible chamber devices – Interengaging rotating members – Non-parallel axis

Patent

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Wrap element and tip seal for use in fluid apparatus of the scro

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

Patent

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Wrap element and tip seal for use in fluid apparatus of the scro

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

Patent

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