Stock material or miscellaneous articles – Sheet facing and longitudinally noncoextensive with web or... – Sheet smaller in both length and width
Patent
1988-09-01
1992-09-01
Davis, Jenna
Stock material or miscellaneous articles
Sheet facing and longitudinally noncoextensive with web or...
Sheet smaller in both length and width
428137, 428189, 428190, 428212, B32B 306, B32B 702
Patent
active
051437708
ABSTRACT:
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.
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Boroski William N.
Gonczy John D.
Niemann Ralph C.
Davis Jenna
Universities Research Association Inc.
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