Boots – shoes – and leggings – Boots and shoes – Foot-supporting or foot-conforming feature
Patent
1995-02-27
1997-04-08
Patterson, M. D.
Boots, shoes, and leggings
Boots and shoes
Foot-supporting or foot-conforming feature
36 93, 36154, A43B 714
Patent
active
056176503
ABSTRACT:
Shoes are provided with soles and/or upper portions which conform to the configuration of the user's feet by the use of vacuum formable bladders in the sole of the shoes and/or in the sides of the upper portions of the shoes. The bladders are filled with material, such as small resilient or interlocking particles, which retains a configuration conforming to the shape of the feet under reduced pressure conditions. A vacuum pump is provided, and it may be located in the heel area of the shoe to be actuated by walking or running to evacuate air from the bladders. The shoe may be removed, and the vacuum formable bladders will retain their shape as long as the vacuum is maintained.
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patent: 5203793 (1993-04-01), Lyden
patent: 5383290 (1995-01-01), Grim
patent: 5392534 (1995-02-01), Grim
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