Vacuum bottle construction

Details Vacuum bottle construction Vacuum bottle construction

1977-11-17

1979-02-06

Hart, Ro E.

Bottles and jars

Multilayer barrier structure

Insulating material between spaced wall panels

220420, 220455, 220458, A47J 4102

Patent

active

041380274

ABSTRACT:
A vacuum bottle construction is disclosed in which the vacuum filler is formed from a pair of concentric thin wall metal cylinders. The cylinders are formed of a thin metallic material, such as mild steel, which is unable to withstand the pressure differential of atmospheric pressure on one side and a vacuum on the other side. To prevent collapse of the filler a rigid jacket is provided over the outer wall in intimate contact therewith to prevent collapse.

REFERENCES:
patent: 889992 (1908-06-01), Van Wye
patent: 916450 (1909-03-01), Keller
patent: 3295709 (1967-01-01), Herrick
patent: 3845873 (1974-11-01), Bridges
patent: 3863794 (1975-02-01), Hata
patent: 3913776 (1975-10-01), Tantam
patent: 3939834 (1976-02-01), McMahon
patent: 3961720 (1976-06-01), Potter

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