LandOfFree - US Patents - Listing for Rotary expansible chamber devices

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

Wafer elements for progressing cavity stators

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

Wall shape for scroll-type compressor vanes

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

Wankel type pump for transporting fluid with entrained...

Utility Patent

Rotary expansible chamber devices – With plural working fluid inlet or outlet passages

Wankel-type engine with semi-circular sectional configuration fo

Rotary expansible chamber devices – With wear surface treatment or integrally plated wear layer

Water based hydraulic fluid and hydraulic pressure device

Rotary expansible chamber devices – Methods

Water jet type air compressor system, its starting method,...

Rotary expansible chamber devices – Interengaging rotating members – Like rotary members

Water turbines

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – Non-working and working fluids intermix in working chamber

Water-injected screw compressor

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

Water-injected screw compressor element

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

Water-injected screw-type compressor

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With condition responsive control of non-working fluid

Water-lubricated compressor

Rotary expansible chamber devices – Interengaging rotating members – Like rotary members

Wave tooth gears using identical non-circular conjugating...

Rotary expansible chamber devices – Nutating working member – With mechanical sealing

Waveform actuating air compressor

Rotary expansible chamber devices – With changeable working chamber magnitude – Cylinder or cylinder portion moved linearly and radially

Wear resistant rotor slots for vane-type pumps or motors

Rotary expansible chamber devices – Positively actuated vane – Spring biased

Wear resistant vane-type fluid power converter

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

Wear-preventing and positioning device for a screw compressor

Rotary expansible chamber devices – With wear surface treatment or integrally plated wear layer

Wear-resistant coating for sealing strips in rotary engines

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

Weld strengthening component for sealed compressors

Rotary expansible chamber devices – Multistage – Sliding abutment

Wellbore motor system