4. Heat exchange
  5. Movable heating or cooling surface
  6. Rotary drum

Rudolf Hofmann, Jr.

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Compressor intake control

Pumps – With condition responsive pumped fluid control – Inlet throttle or stop valve
Patent

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Method and apparatus for controlling operation of a compressor

Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent

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Rotary gas machine

Pumps – Expansible chamber type – Having separate noncyclic valve
Patent

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Silently operating fluid pump unit

Pumps – Combined
Patent

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Temperature responsive multi-function valve

Heat exchange – Movable heating or cooling surface – Rotary drum
Patent

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Profile ID: LFUS-PAI-P-759769

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