Insole with replaceable pneumatic buffer

Details Insole with replaceable pneumatic buffer Insole with replaceable pneumatic buffer

1991-09-11

1993-01-05

Meyers, Steven N.

Boots, shoes, and leggings

Soles

Cushion

36 3R, 36 3B, 36 35R, 36 35B, 36 37, 36 43, 36 71, A43B 1320, A43B 1338, A43B 1340, A43B 2128

Patent

active

051759462

ABSTRACT:
An insole includes a heel portion defining a recess. A replaceable pneumatic buffer defining a first and a second tubular elements is received in the recess of the insole. A central tunnel communicating with the first tubular element defines a hole. A plurality of tunnels communicate the first tubular element with the second tubular element. When load is exerted on the buffer, the second tubular element abuts a surface of the shoe, thereby defining a chamber filled with air. When the load increases excessively, air is ventable through the hole of the central tunnel and further off the chamber.

REFERENCES:
patent: 1771793 (1930-07-01), Kind
patent: 2106788 (1938-02-01), Borman
patent: 2365027 (1944-12-01), Urbany
patent: 2597393 (1952-05-01), Slampa
patent: 4768295 (1988-09-01), Ito
patent: 5086574 (1992-02-01), Bacchiocchi
patent: 5092060 (1992-03-01), Frachey et al.

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