Self-inflatable air cushion

Details Self-inflatable air cushion Self-inflatable air cushion

1997-06-16

1999-08-17

Green, Brian K.

Beds

Support for users body or part thereof

Inflatable

5654, 36 29, 36 35B, A47C 2708, A43B 1320

Patent

active

059374624

ABSTRACT:
A self-inflatable air cushion which includes a support chamber mounted in a sole of a shoe and holding a fluid, a collapsible plenum chamber surrounded by the support chamber and partially protruding over the top of the sole and having a top air hole, passage means connected between the support chamber and the plenum chamber, and one-way valve mounted in the passage means to let air flow move in one direction from the plenum chamber to the support chamber upon compression of the plenum chamber.

REFERENCES:
patent: 3583008 (1971-06-01), Edwards
patent: 4446634 (1984-05-01), Johnson et al.
patent: 4763426 (1988-08-01), Polus et al.
patent: 5195254 (1993-03-01), Tyng
patent: 5222312 (1993-06-01), Doyle
patent: 5335382 (1994-08-01), Huang
patent: 5406661 (1995-04-01), Pekar
patent: 5558395 (1996-09-01), Huang
patent: 5794361 (1998-08-01), Sadler

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