4. Rotary expansible chamber devices
  5. Shaft or trunnion lubrication or sealing by diverted working...

Permco, Inc.

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Flow diverter pressure plate

Rotary expansible chamber devices – Pressure fluid radially balances working or rotating... – Counterbalancing fluid directed to intertooth spaces or...
Patent

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Gear pump valving system

Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent

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Lubrication of gear pump trunnions

Rotary expansible chamber devices – Shaft or trunnion lubrication or sealing by diverted working...
Patent

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Remotely actuated multiple pressure direct acting relief valve

Fluid handling – Line condition change responsive valves – Direct response valves
Reexamination Certificate

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