4. Rotary expansible chamber devices
  5. Interengaging rotating members
  6. Like rotary members

Drew Van Norman

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Mechanical seal device and method for a scraped surface heat...

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Reexamination Certificate

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Method and apparatus for timing rotors in a rotary lobe pump

Rotary expansible chamber devices – Interengaging rotating members – Like rotary members
Reexamination Certificate

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Mounting system and method for scraped surface heat...

Heat exchange – With scraper removing product from temperature modifying...
Reexamination Certificate

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Scraper blade attachment apparatus and method with split pin

Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Reexamination Certificate

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Shaft mounted seal device and method for a scraped surface...

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2757848

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