Athletic shoe with impact sensing means

Details Athletic shoe with impact sensing means Athletic shoe with impact sensing means

1990-01-30

1991-08-20

Meyers, Steven N.

Boots, shoes, and leggings

Boots and shoes

Occupational or athletic shoe

36 44, A43B 500

Patent

active

050403133

ABSTRACT:
An athletic shoe includes impact sensing means disposed in contact with the impact cushioning material disposed between the inner sole and the outer sole of the shoe. The impact sensing means comprises a rupturable material having encapsulated dye. If the impact pressure effective upon the medium exceeds a predetermined value, the medium ruptures, releasing the dye for providing a visual indication that the impact pressure exceeded a predetermined value. A plurality of strips of rupturable material can be provided, each rupturing at a different pressure and each having dye of a respectively different color.

REFERENCES:
patent: 3702999 (1972-11-01), Gradisar
patent: 3791375 (1974-02-01), Pfeiffer
patent: 4421124 (1983-12-01), Marshall
patent: 4503705 (1985-03-01), Porchaninoff
patent: 4574812 (1986-03-01), Arkans
patent: 4745930 (1988-05-01), Confer
patent: 4747415 (1988-05-01), Lavoisier
patent: 4768295 (1988-09-01), Ito
patent: 4776331 (1988-10-01), Simjian
patent: 4814661 (1989-03-01), Ratzlaff et al.
patent: 4858620 (1989-08-01), Sugarman et al.

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