Method of fabricating a multilayer insulation blanket

Patent · Thu Dec 31 23:00:00 EST 1992

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

/112/242/
accommodate
accommodate thermal
apparatus
arcuate
axle
binding
blanket
bound
circumference
closest
comprises
continuous
continuous sheet
contraction
convex
cross-section
cryogenic
cryogenic structure
cryogenic structures
cutting
cylindrical
cylindrical mandrel
disclosed
edges
fabricating
fabricating apparatus
fixed
form
form multiple
improved
improved blanket
improved multilayer
insulating
insulating cryogenic
insulating material
insulation
insulation blanket
layer
layer insulation
layers
length
line
line parallel
lines
mandrel
material
method
multilayer
multilayer insulation
multiple
multiple layer
multiple layers
operating
outer
outer surface
parallel
preceding
preferably
radius
reflective
reflective material
removing
rotatable
rotatable cylindrical
sheet
structure
structures
structures operating
substantially
substantially parallel
successive
successive layer
surface
temperatures
thermal
thermal contraction
thermally
width
winding