Method of fabricating a multilayer insulation blanket

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868837

Gonczy, John D ^[1]; Niemann, Ralph C ^[2]; Boroski, William N ^[3]

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1. Oak Lawn, IL
2. Downers Grove, IL
3. Aurora, IL

An improved multilayer insulation blanket for insulating cryogenic structures operating at very low temperatures is disclosed. An apparatus and method for fabricating the improved blanket are also disclosed. In the improved blanket, each successive layer of insulating material is greater in length and width than the preceding layer so as to accommodate thermal contraction of the layers closest to the cryogenic structure. The fabricating apparatus has a rotatable cylindrical mandrel having an outer surface of fixed radius that is substantially arcuate, preferably convex, in cross-section. The method of fabricating the improved blanket comprises (a) winding a continuous sheet of thermally reflective material around the circumference of the mandrel to form multiple layers, (b) binding the layers along two lines substantially parallel to the edges of the circumference of the mandrel, (c) cutting the layers along a line parallel to the axle of the mandrel, and (d) removing the bound layers from the mandrel.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• DOE Contract Number: AC02-76CH03000
• Assignee: Universities Research Association, Inc. (Washington, DC)
• Patent Number(s): US 5224832
• OSTI ID: 868837
• Country of Publication: United States
• Language: English

Related Subjects

method
fabricating
multilayer
insulation
blanket
improved
insulating
cryogenic
structures
operating
temperatures
disclosed
apparatus
successive
layer
material
length
width
preceding
accommodate
thermal
contraction
layers
closest
structure
rotatable
cylindrical
mandrel
outer
surface
fixed
radius
substantially
arcuate
preferably
convex
cross-section
comprises
winding
continuous
sheet
thermally
reflective
circumference
form
multiple
binding
lines
parallel
edges
cutting
line
axle
removing
bound
reflective material
multiple layer
line parallel
improved blanket
continuous sheet
insulating material
outer surface
substantially parallel
multiple layers
successive layer
thermal contraction
rotatable cylindrical
multilayer insulation
insulation blanket
accommodate thermal
structures operating
fabricating apparatus
form multiple
cylindrical mandrel
layer insulation
improved multilayer
insulating cryogenic
cryogenic structure
cryogenic structures
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