4. Pumps
  5. Successive stages
  6. Reciprocating rigid stages

John L. Farrant

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Multi-stage vacuum pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Porting and ducting arrangement

Pumps – Expansible chamber type – Pumping member position controlled port
Patent

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Reciprocatory piston and cylinder machine

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Reciprocatory piston and cylinder machine

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Profile ID: LFUS-PAI-P-634425

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