4. Rotary expansible chamber devices
  5. Methods

John L. Calhoun

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Scroll-type compressor with spirals of varying pitch

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

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Variable capacity scroll type fluid displacement apparatus

Rotary expansible chamber devices – Methods
Patent

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Wall shape for scroll-type compressor vanes

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

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Profile ID: LFUS-PAI-P-422032

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