Boots – shoes – and leggings – Soles – Sectional
Patent
1997-04-08
1999-04-20
Patterson, M. D.
Boots, shoes, and leggings
Soles
Sectional
36 84, 36 1, A43B 1314
Patent
active
058946829
ABSTRACT:
The invention provides a shoe having a built-in wear-indicator device capable of signalling (a) extent of shoe wear, (b) biomechanical compatibility with the user, (c) loss of the ability to cushion and absorb shock, and (d) a need for shoe replacement. The built-in wear-indicator device is positioned within the midsole and/or outsole and must be made of a material that is less compactible than the surrounding bulk midsole material that functions conventionally to cushion and absorb shock. With prolonged wear the midsole material loses its ability to absorb shock and compacts in the vertical dimension. In contrast, the wear-indicator device, being less compactible than the midsole, continues to protrude into the outsole in response to downward forces exerted on the indicator device. The degree of extension of the wear-indicator device into the outsole is an indicator of loss of ability to cushion and absorb shock and, consequently, of a need for shoe replacement. The invention further provides a shoe having a built-in wear-indicator outsole capable of detecting erosion of the shoe outsole surfaces, which is correlated with midsole compaction and loss of ability to cushion and absorb shock.
REFERENCES:
patent: 2187621 (1940-01-01), Hanus
patent: 2706509 (1955-04-01), White
patent: 3258805 (1966-07-01), Rossnan
patent: 3362376 (1968-01-01), Norton
patent: 3578055 (1971-05-01), French et al.
patent: 3631614 (1972-01-01), Rice
patent: 3929179 (1975-12-01), Hines
patent: 4130947 (1978-12-01), Denu
patent: 4271608 (1981-06-01), Tomuro
patent: 4274211 (1981-06-01), Funck
patent: 4364188 (1982-12-01), Turner et al.
patent: 4715133 (1987-12-01), Hartjes et al.
patent: 4845863 (1989-07-01), Yung-Mao
patent: 4887367 (1989-12-01), Mackness et al.
patent: 5289647 (1994-03-01), Mercer
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