4. Rotary expansible chamber devices
  5. Working member has planetary or planetating movement
  6. Helical working member, e.g., scroll

Russell W. Griffith

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Frequency indicating system

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Scroll apparatus control

Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent

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Scroll-type machine

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

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Scroll-type machine with rotation controlling means and specific

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent

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Profile ID: LFUS-PAI-P-1232097

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