Support device

Details Support device Support device

1980-08-27

1982-11-02

Ives, P.

Boots, shoes, and leggings

Insoles

Laminated

428178, 428518, 428520, 428215, 4284247, 4283171, A43B 1338, B32B 518

Patent

active

043566421

ABSTRACT:
A support device as disclosed, such as for use as an innersole for footwear, which provides cushioned support conforming to the shape of the wearer's foot to distribute the weight of the wearer substantially evenly over the supported area. At least one air cushion layer comprising closely spaced, discrete air pockets entrapped between plastic film is adhered to a layer of soft, flexible, open cell foam. A pressure sensitive adhesive is used which impregnates the foam layer and, when in use under pressure, coats the plastic film, thereby reinforcing it against leakage or rupture and conforming it semi-permanently in the pressure-distorted shape. Protective sheathing may be used, adhered to the outer surface of the air pocket layer by pressure sensitive adhesive.

REFERENCES:
patent: 3170250 (1965-02-01), Scholl
patent: 3548420 (1970-12-01), Spence
patent: 3589037 (1971-06-01), Gallagher
patent: 3746604 (1973-07-01), Reynolds
patent: 4099342 (1978-07-01), Singh

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