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Title: Multilayer insulation blanket, fabricating apparatus and method

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.

Inventors:
 [1];  [2];  [3]
  1. Oak Lawn, IL
  2. Downers Grove, IL
  3. Aurora, IL
Issue Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
OSTI Identifier:
868451
Patent Number(s):
5143770
Assignee:
Universities Research Association, Inc. (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16L - PIPES
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
multilayer; insulation; blanket; fabricating; apparatus; method; improved; insulating; cryogenic; structures; operating; temperatures; disclosed; 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; /428/

Citation Formats

Gonczy, John D, Niemann, Ralph C, and Boroski, William N. Multilayer insulation blanket, fabricating apparatus and method. United States: N. p., 1992. Web.
Gonczy, John D, Niemann, Ralph C, & Boroski, William N. Multilayer insulation blanket, fabricating apparatus and method. United States.
Gonczy, John D, Niemann, Ralph C, and Boroski, William N. Wed . "Multilayer insulation blanket, fabricating apparatus and method". United States. https://www.osti.gov/servlets/purl/868451.
@article{osti_868451,
title = {Multilayer insulation blanket, fabricating apparatus and method},
author = {Gonczy, John D and Niemann, Ralph C and Boroski, William N},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Works referenced in this record:

The Surface Emittance of Vacuum-Metallized Polyester Film
book, January 1967


Thermal Performance of Candidate SSC Magnet Thermal Insulation Systems
book, January 1988


Thermal Performance of Tank Applied Multilayer Insulations
book, January 1967


Multiple layer insulation forcryogenic applications
journal, March 1961


Multiple-Layer Insulation
book, January 1960


Outgassing rate of multilayer insulation materials at ambient temperature
journal, May 1980