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Apparatus for circulating carrier fluid

  • US 20030092172A1
  • Filed: 11/11/2002
  • Published: 05/15/2003
  • Est. Priority Date: 11/10/2001
  • Status: Active Grant
First Claim
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1. An apparatus for circulating a carrier fluid comprising two or more chambers maintained at different temperatures, each chamber comprising:

  • an inlet valve containing a pneumatic air pressure port for controlling inflow of the carrier fluid to the chamber (inlet pneumatic air pressure port); and

    an outlet valve containing a pneumatic air pressure for controlling outflow of the carrier fluid from the chamber (outlet pneumatic air pressure port);

    wherein the chambers are sequentially connected such that the outlet valve of one chamber is connected to the inlet valve of an adjacent chamber in a direction the fluid flows.

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