Insulator

Details Insulator Insulator

1974-10-15

1976-09-21

Rutledge, L. Dewayne

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

138147, 138148, 165135, B32B 300, F16L 5914, F28F 1300

Patent

active

039816893

ABSTRACT:
Readily installable, highly efficient insulating structures for affixation to bodies requiring insulation comprise successive sheets of closely spaced heat resistive metal foil configured to maintain the intersheet spacing under the stress of gravity and other external forces. Each sheet of foil includes a plurality of corrugations which extend through part but not all of the gaps between adjacent sheets to minimize convection, and which in one embodiment abut corrugations of adjacent sheets to maintain the intersheet spacing. In one embodiment the corrugations are V-shaped in cross section and extend along the length of the sheet on one side thereof. In a different embodiment, each corrugation is comprised of a series of protrusions in the sheet which extend end-to-end along the length of the corrugation, the protrusions alternating in direction along the length of the corrugation to form a zig zag pattern and alternately extending outwardly on opposite sides of the sheet and into abutment with protrusions from adjacent sheets. The insulating structure is contained within a sealed envelope to minimize oxidation of the sheet as well as to prevent contamination of the insulator from outside sources.

REFERENCES:
patent: 1751757 (1930-03-01), Phillips
patent: 1987798 (1935-01-01), Ruppricht
patent: 2179057 (1939-11-01), Schuetz
patent: 2596642 (1952-05-01), Boestad
patent: 2613166 (1952-10-01), Gronemeyer
patent: 2789322 (1957-04-01), Coss
patent: 3372743 (1968-03-01), Pall et al.
patent: 3412518 (1968-11-01), Waite
patent: 3421977 (1969-01-01), Hutchinson et al.
patent: 3528495 (1970-09-01), Armstrong et al.
patent: 3698879 (1972-10-01), Gewiss

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