LandOfFree - US Patents - Listing for Rotary expansible chamber devices

Rotary expansible chamber devices – Non-metallic working member – cylinder or partition – Resilient

Positive displacement fluid motor with flexible blades

Rotary expansible chamber devices – With mechanical sealing – Seal element between working member and cylinder

Positive displacement four lobe impeller structure

Rotary expansible chamber devices – With mechanical sealing – Seal element between stationary cylinder parts

Positive displacement hydraulic machine having a recess receivin

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

Positive displacement hydraulic unit with near-zero side...

Rotary expansible chamber devices – Methods

Positive displacement machine having improved displacement curve

Rotary expansible chamber devices – Working chamber surface expressed mathematically

Positive displacement machine having rotating vanes and a non-ci

Rotary expansible chamber devices – Non-metallic working member – cylinder or partition – Resilient

Positive displacement machine with a plastic gate pinton

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

Positive displacement machine with elastic suspension

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

Positive displacement machine with planetary motion and hypertro

Rotary expansible chamber devices – Working member has planetary or planetating movement – Non-metallic working member – cylinder or partition

Positive displacement machine, more particularly pump, and metho

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

Positive displacement meshing screw machine

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

Positive displacement motor/progressive cavity pump

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing

Positive displacement pump

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

Positive displacement pump

Rotary expansible chamber devices – Self-acting unidirectional flow with reverse rotation or...

Positive displacement pump

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

Positive displacement pump apparatus

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Positively rotated

Positive displacement pump apparatus

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

Positive displacement pump apparatus and method

Rotary expansible chamber devices – Self-acting unidirectional flow with reverse rotation or...

Positive displacement pump rotatable in opposite directions