Plastic container with enhanced insulation

Details Plastic container with enhanced insulation Plastic container with enhanced insulation

1988-09-14

1989-12-12

Fox, John C.

Receptacles

Receptacle having flexible, removable inner liner

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

220469, B65D 2100

Patent

active

048861871

ABSTRACT:
A plastic container having enhanced insulation is made from a partially-laminated billet having a laminated outer periphery and gas trapped between the unlaminated portion of the billet layers, by heating the billet to a temperature below the softening point of at least one of the layers, which expands the gas trapped between the layers and separates the unlaminated layers. The billet is then clamped about its outer periphery and drawn into the shape of the container using solid-phase forming techniques. The separated layers insulate the contents of the container from the surrounding environment.

REFERENCES:
patent: 1993730 (1935-03-01), Carpenter
patent: 4420670 (1983-12-01), Croswell et al.
patent: 4435244 (1984-03-01), Beck et al.
patent: 4441876 (1984-04-01), Marc
patent: 4448345 (1984-05-01), Helms
patent: 4451721 (1984-05-01), Nemeskeri
patent: 4512942 (1985-04-01), Babbin et al.
patent: 4756446 (1988-07-01), Gen et al.

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