Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1980-03-24
1982-09-14
Moy, Joseph Man-Fu
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
220422, 220429, 220450, F16L 918, B65D 9006
Patent
active
043490514
ABSTRACT:
An insulation arrangement in which a sheath (2) having at least one thin deformable wall (3), for example of foil, contains a powder insulating material (10), with a high vacuum within the sheath. The vacuum can be drawn through an opening (8) after a filter (9) is inserted to prevent removing the powder when the vacuum is drawn. The insulation arrangement can take the form of a panel or a pipe, and the thin wall (3) can be mechanically deformed after the vacuum is drawn.
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patent: 2970042 (1961-01-01), Lagerwey
patent: 3207354 (1965-09-01), Skinner et al.
patent: 3361284 (1968-01-01), Luka et al.
patent: 3812886 (1974-05-01), Hallwood
Elkins Gary E.
Man-Fu Moy Joseph
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