4. Rotary expansible chamber devices
  5. Working member has planetary or planetating movement
  6. Plural working members or chambers

Walter M. Hopkins

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Apparatus having expanding and contracting chamber

Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent

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Expansible chamber apparatus with pairs of cylindrical rollers

Rotary expansible chamber devices – With mechanical sealing – Seal element between working member and cylinder
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Profile ID: LFUS-PAI-P-688000

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