Nonmetallic cylindrical cryogenic container
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United States of America Patent
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-
Sep 27, 1988
Grant Date -
N/A
app pub date -
Aug 3, 1987
filing date -
Aug 3, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum-tight nonmetallic Dewar component is fabricated from composite material of nonmagnetic fibers in a resin matrix. The component is cylindrical with a closed end, and is laid up from sheets of the composite material and circles cut from the sheets to form the closed end. The layers are mechanically worked and debulked repeatedly during layup between the addition of successive layers, to remove irregularities that can cause vacuum leaks. The joints between the sheets applied to the cylindrical surface and the circular end pieces are mechanically worked to effect a vacuum-tight seal, and the joints are staggered as between succeeding layers for strength and integrity. The laid up and debulked piece is finally cured.
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