Resilient blanket with integral high strength facing and method

Details Resilient blanket with integral high strength facing and method Resilient blanket with integral high strength facing and method

1983-12-08

1985-02-12

Pollard, Steven M.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220422, 220429, B65D 722

Patent

active

044986025

ABSTRACT:
A cryogenic storage tank having inner and outer storage vessels having spaced top, bottom, and upstanding side walls defining an annular insulating space therebetween. Granular insulating material is provided in the annular insulating space between the side walls, and a composite, resilient, insulating blanket, which remains elastically compressible at cryogenic temperatures and which has a flexible, high tensile strength facing on at least one side thereof, is likewise provided in the annular insulating space. The compressibility of the blanket compensates for dimensional changes in the annular insulating space, which would otherwise cause attrition of the granular insulating material, and the high tensile strength flexible facing on the blanket prevents local tearing or rupturing of the blanket when subjected to the vertical drag forces of the behavior of the granular material and due to the thermally induced changes in the dimensions of the annular insulating space.
A composite, resilient, insulating blanket provided by a sheet of fiber glass having a flexible layer of high tensile strength fiber glass bonded thereto by a fused film of polyethylene to increase the tensile strength of the blanket.
A method of making a composite, compressively resilient, high tensile strength, insulating blanket useable at cryogenic temperatures.

REFERENCES:
patent: 3147878 (1964-09-01), Wissmiller
patent: 3481504 (1969-12-01), Nelson
patent: 3559835 (1971-02-01), Lange
patent: 3612332 (1971-10-01), Clapp
patent: 3903824 (1975-09-01), Laverman et al.
patent: 3987925 (1976-10-01), Sattelberg

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