4. Rotary expansible chamber devices
  5. With changeable working chamber magnitude
  6. Spring or fluid biased movable member

Fusao Semba

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Variable displacement pump

Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent

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Variable displacement pump having throttled control passages

Rotary expansible chamber devices – With changeable working chamber magnitude – Spring or fluid biased movable member
Patent

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Variable displacement vane pump

Rotary expansible chamber devices – With changeable working chamber magnitude – By cylinder or cylinder portion pivotal movement
Reexamination Certificate

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Variable displacement vane pump

Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Reexamination Certificate

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Profile ID: LFUS-PAI-P-123049

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