Molded foot bed

Details Molded foot bed Molded foot bed

1981-06-22

1983-11-08

Schroeder, Werner H.

Boots, shoes, and leggings

Insoles

Laminated

36 30R, A43B 1338

Patent

active

044134290

ABSTRACT:
A foot bed insertable into a shoe and heat moldable to conform to the user's foot is provided. The foot bed comprises a three layer laminate in which the base, or bottom, layer comprises a relatively thick, heat deformable foam rubber material which maintains a compression set upon cooling. The middle layer is of foamed elastomer which is highly resistant to permanent deformation both of ambient temperature and at the moderately elevated temperatures used in molding the base layer. A top, or face, layer which is thinner and less compressible than the middle layer acts to uniformly distribute compression loads to the middle layer and to transmit lateral movements for absorption within the middle layer.

REFERENCES:
patent: 774622 (1904-11-01), Vogel
patent: 1807341 (1931-05-01), Messler
patent: 3481820 (1969-12-01), Jonas
patent: 4167824 (1979-09-01), Wolpa

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