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Pump drive head backspin retarder

Rotary expansible chamber devices – With frangible drive connection or clutch
Patent

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Pump drive system

Rotary expansible chamber devices – With frangible drive connection or clutch
Reexamination Certificate

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Pump equipment with plural rotary pumps and method for...

Rotary expansible chamber devices – Moving cylinder – Rotating
Reexamination Certificate

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Pump for conveying molten masses of polymers and elastomers

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

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Pump for dispensing resins

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

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Pump for hot and cold fluids

Rotary expansible chamber devices – Multistage – Interengaging rotary members
Patent

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Pump for pumping a liquid containing solid contaminants

Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With pump for non-working fluid
Patent

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Pump for pumping fluid without vacuum boiling

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

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Pump for thermoplastic materials with heater means

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

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Pump for use in a paint application apparatus

Rotary expansible chamber devices – With removal or accommodation of solid foreign material in...
Patent

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Pump for viscous fluids

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

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Pump having a main outlet communicating with a secondary...

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

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Pump having an intermediate element with a pivot bearing...

Rotary expansible chamber devices – Interconnected vanes – Integrally connected
Reexamination Certificate

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Pump impeller

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

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Pump including integral reservoirs for permitting dry run of pum

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

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Pump rotor

Rotary expansible chamber devices – Relatively movable working member and drive shaft axes
Patent

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Pump seal arrangement accessible from the base plate

Rotary expansible chamber devices – With mechanical sealing
Patent

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Pump structure

Rotary expansible chamber devices – Trapped fluid relief
Patent

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Pump unit

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

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Pump utilizing helical seal

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

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