Thermal insulating and cushioned bag, especially a carrying bag

Purses – wallets – and protective covers – Protective cover made of flaccid material – For a racquet

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229 55, 229 69, 150 22, A61F 700, B65D 3300

Patent

active

042112672

ABSTRACT:
A thermal insulating and shock absorbant bag, particularly a carrying bag, is formed of walls each having an outer layer of thin, flexible thermoplastic foam of a thickness between the 0.07 mm and 0.14 mm, which provides effective insulating properties. The bag walls each have an inner layer of thin flexible thermoplastic polyethylene film connected by welding to the outer layer at the edge portions of the bag. The inner layer may be formed of two films of polyethylene film with an intermediate film of metal foil located therebetween and steam-connected to one of said polyethylene films. In a preferred embodiment, a flexible insulating layer of padded polyester cotton is disposed between the inner and outer layers to improve the insulating and shock absorbing qualities of the bag. The insulating layer is thermoplastic and is welded to the surrounding layers.

REFERENCES:
patent: 3428103 (1969-02-01), Walsh
patent: 3460740 (1969-08-01), Hagen
patent: 3834611 (1974-09-01), Schwarzkopf
patent: 3868056 (1975-02-01), Keren
patent: 3948436 (1976-04-01), Bambara

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