Back to results
US 4,046,407 AGranted
Elongated cryogenic envelope
AssigneeCryogenic Technology, Inc.
InventorTom Porreco
Life of this patent
Estimating the term…
Abstract
An elongated cryogenic envelope is comprised of a plurality of sections each including an outer tube and a coaxial inner tube spaced therefrom by a support means. The outer tubes of each section are joined together to form a continuous outer tube. The inner tubes, however, are unjoined so that fluid can flow therebetween, but an expansion means is affixed to at least one of the inner tubes to separate the vacuum chamber from the fluid passing through the space between the inner tubes.
Claims4
A cryogenic structure comprising a plurality of elongated cryogenic envelope sections, each section including:
- an inner tube;
- an outer tube generally coaxial with said inner tube;
- means for supporting said inner tube within said outer tube, said means for supporting including a means for providing a vacuum in at least a portion of the volume between said inner tube and said outer tube;
- and, wherein:
- the outer tubes of said sections are joined together to form a continuous outer tube, but the inner tubes of at least two of said sections are unjoined so that fluid passing through the inner tubes is permitted to pass between said unjoined portions and said unjoined portions are permitted to move relative to each other during contraction or expansion, the adjacent ends of said inner tubes being flared outwardly toward said outer tube to allow objects to be pulled through said inner tubes without snagging thereon.
2 more elements
Dependencies are inferred from the claim text.