Shoe structure with nails to extend out or retract in by kicking

Details Shoe structure with nails to extend out or retract in by kicking Shoe structure with nails to extend out or retract in by kicking

1988-02-19

1989-04-18

Meyers, Steven N.

Boots, shoes, and leggings

Boots and shoes

Occupational or athletic shoe

36 61, A43C 1502, A43C 1500

Patent

active

048214345

ABSTRACT:
The shoe has spikes which can be extended and retracted by T-shaped rail members which are actuated by respectively impacting the front or the rear of the shoe sole against a solid target such as a wall or road surface.

REFERENCES:
patent: 3717238 (1973-02-01), Fox
patent: 3793751 (1974-02-01), Gordos
patent: 3983643 (1976-10-01), Schreyer et al.
patent: 4226032 (1980-10-01), Herro
patent: 4333249 (1982-06-01), Schaefer
patent: 4375729 (1983-03-01), Buchanen, III

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