4. Pumps
  5. One fluid pumped by contact or entrainment with another
  6. Contact or entrainment within rotary impeller

Rudi Dittmar

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Liquid ring machine having a rotor with sweeping edges for scrap

Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller
Patent

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Liquid ring pump

Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller
Reexamination Certificate

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Side-channel compressor

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Patent

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Profile ID: LFUS-PAI-P-1491920

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