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Cryogenic vessel with an ullage space venturi assembly

  • US 7,131,277 B2
  • Filed: 06/13/2005
  • Issued: 11/07/2006
  • Est. Priority Date: 09/26/2003
  • Status: Expired due to Fees
First Claim
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1. A cryogenic vessel comprising:

  • a first, outer vessel assembly having an outer vessel and a liquid fill line assembly;

    a second, ullage space vessel having a bottom and disposed within said first, outer vessel;

    said liquid fill line assembly having a venturi assembly adjacent to, and in fluid communication with, the bottom of said ullage space vessel; and

    said venturi assembly structured to create a low pressure zone, relative to said ullage space vessel during a fill procedure whereby, during a fill procedure, fluid is drawn from said ullage space vessel into said fill line assembly.

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