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Centrifuge having rotary solids discharge conveyor with bearing seal

  • US 3,315,882 A
  • Filed: 10/05/1964
  • Issued: 04/25/1967
  • Est. Priority Date: 10/05/1964
  • Status: Expired due to Term
First Claim
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1. A CENTRIFUGE COMPRISING (A) A BOWL ASSEMBLY MOUNTED TO ROTATE ABOUT AN AXIS, (B) A CONVEYOR ASSEMBLY COMPRISING A HELICAL CONVEYOR ELEMENT AND DISPOSED WITHIN THE BOWL ASSEMBLY, (C) LUBRICATION-REQUIRING BEARING MEANS MOUNTING THE CONVEYOR ASSEMBLY WITHIN THE BOWL ASSEMBLY FOR ROTATION RELATIVE THERETO, PROCESS VAPORS IN THE BOWL TENDING TO FOLLOW A PATH TO REACH THE BEARING MEANS, (D) RIGID-FACED SEALING MEANS SEALINGLY HELD ON ONE OF SAID ASSEMBLIES AND RESILIENTLY BIASED INTO SEALING ENGAGEMENT WITH THE OTHER ASSEMBLY, SAID RIGID-FACED SEALING MEANS BEING DISPOSED ON THE PATH INTERMEDIATE SAID HELICAL CONVEYOR ELEMENT AND SAID BEARING MEANS, (E) ELASTOMERIC SEALING MEANS SEALINGLY HELD ON ONE OF SAID ASSEMBLIES AND HAVING ITS DISTAL PERIPHERY SEALINGLY ENGAGING THE OTHER ASSEMBLY, THE ELASTOMERIC SEALING MEANS BEING DISPOSED ON THE PATH INTERMEDIATE THE RIGID-FACED SEALING MEANS AND THE BEARING MEANS, THE RIGID-FACED SEALING MEANS AND THE ELASTOMERIC SEALING MEANS TOGETHER WITH THE CONVEYOR ASSEMBLY AND THE BOWL ASSEMBLY DEFINING A CHAMBER, AND (F) MEANS FOR SUPPLYING A GAS UNDER PRESSURE TO SAID CHAMBER.

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