초록 ▼

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 a

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.

대표청구항 ▼

A multiple layer insulation blanket fabricated according to the method comprising winding a continuous sheet of thermally reflective polymer film around the circumference of a substantially cylindrical rotatable mandrel to form multiple layers, binding said layers along at least two lines substantia

A multiple layer insulation blanket fabricated according to the method comprising winding a continuous sheet of thermally reflective polymer film around the circumference of a substantially cylindrical rotatable mandrel to form multiple layers, binding said layers along at least two lines substantially parallel to the edges of the circumference of said mandrel, cutting said layers along a line substantially parallel to the axle of said mandrel, and removing said layers from said mandrel, said mandrel having a radially outwardly presented surface of fixed radius, said surface substantially arcuate in cross-section taken in a direction coplanar to the axle of said mandrel.