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Composite cryogenic tank apparatus

  • US 5,419,139 A
  • Filed: 12/13/1993
  • Issued: 05/30/1995
  • Est. Priority Date: 12/13/1993
  • Status: Expired due to Term
First Claim
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1. An aerospace vehicle composite cryogen tank apparatus, comprising:

  • a) a space structural tank body having means for containing a cryogenic material;

    b) a tank body having an interior for containing a cryogenic material that has a temperature of as low as minus 400 degrees F.;

    c) the tank body having a tank wall with an inner surface, the tank wall having a composite construction that includes a fiber reinforced portion;

    d) liner means for lining the interior of the tank, said liner means having low permeability to gases and comprising;

    i) a laminate of film layers including at least two film layers, each having a vacuum deposited metalized coating thereon, and a first layer of adhesive bonding the two metalized surfaces together;

    ii) a second layer of adhesive for bonding the liner means to the composite tank inner surface; and

    e) wherein the liner means has a thickness of about 0.5-2.0 mils.

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