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Fluid delivery apparatus and associated method

  • US 5,537,335 A
  • Filed: 11/06/1995
  • Issued: 07/16/1996
  • Est. Priority Date: 11/01/1993
  • Status: Expired due to Fees
First Claim
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1. A fluid delivery apparatus comprising:

  • a chamber for holding a conduit;

    fluid supply means for delivering to said conduit a fluid having a pressure;

    means for modulating said fluid pressure before said fluid is delivered to said conduit to produce a desired fluid pressure for delivery to said conduit;

    said modulating means including;

    mechanical means for at least partially restricting said delivery of said fluid to said conduit;

    means for measuring the pressure of said fluid prior to said fluid being delivered to said conduit;

    means for adjusting said mechanical means based on a comparison of said pressure of said fluid as measured by said measuring means and said desired fluid pressure, said adjusting means includes a motion controller means; and

    said mechanical means includes (i) a linear motor electrically connected to said controller means and (ii) gate valve means in operative association with said linear motor.

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