LandOfFree - US Patents - Listing for Rotary expansible chamber devices

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Gear pump or motor with radial balancing

Rotary expansible chamber devices – Pressure fluid radially balances working or rotating... – Counterbalancing fluid directed to rotating member shaft...

Patent

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Gear pump or motor with serrated grooves on inner wall for break

Rotary expansible chamber devices – Methods

Patent

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Gear pump or motor with tooth tips of dissimilar metal

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

Patent

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Gear pump with a drive and a hydraulic tank

Rotary expansible chamber devices – Convertible or changeable by assembly or disassembly

Reexamination Certificate

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Gear pump with a resilient means for biasing a side wear plate

Rotary expansible chamber devices – With mechanical sealing

Patent

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Gear pump with a valve arranged between a suction side and a...

Rotary expansible chamber devices – Working chamber surface expressed mathematically

Reexamination Certificate

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Gear pump with controlled clamping force

Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with counterbalanced radial forces and two piece radia

Rotary expansible chamber devices – With changeable working chamber magnitude – Intermeshing rotary members

Patent

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Gear pump with groove in end wall beginning at outer periphery o

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...

Patent

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Gear pump with improved gear/shaft retention

Rotary expansible chamber devices – Moving cylinder – Rotating

Patent

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Gear pump with improved inlet port

Rotary expansible chamber devices – Moving cylinder – Rotating

Reexamination Certificate

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Gear pump with improved pinion mounting

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with improved shaft seal

Rotary expansible chamber devices – With mechanical sealing

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with leakage fluid intermittently communicated to expa

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Grooved working member surface

Patent

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Gear pump with low pressure shaft lubrication

Rotary expansible chamber devices – Methods

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with low pressure shaft lubrication

Rotary expansible chamber devices – Methods

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with means for dispersing gas into liquid

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with means for preventing shaft lock-up

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with noise attenuation

Rotary expansible chamber devices – Combined

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Gear pump with pivoted bushings that can deflect

Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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