A - Human Necessities – 43 – B
Patent
A - Human Necessities
43
B
A43B 13/20 (2006.01) A43B 21/28 (2006.01)
Patent
CA 2478426
A shock absorbing bladder for use in the sole (3) of an article of footwear is disclosed. The bladder includes a plurality of inflated chambers at different pressure levels. The bladder includes a first sealed chamber (15, 18) formed of a barrier material. The first chamber contains a fluid at a first fluid pressure. A second sealed chamber (13, 14) also forms part of the bladder. The second chamber is formed of a second barrier material and contains an inflation fluid at a second fluid pressure that is greater than said first fluid pressure. The second chamber is operatively coupled to the first chamber so that the inflation fluid from the second chamber moves into the first chamber to replenish fluid leaving the first chamber.
La présente invention concerne une vessie amortisseur pour semelle (3) d'article chaussant. Cette vessie comporte une pluralité de chambres gonflées à différentes pressions. La vessie renferme une 1?ère¿ chambre hermétique (15, 18) faite d'un matériau barrière. La 1?ère¿ chambre contient un fluide à une première pression. La vessie comporte également une 2?ème¿ chambre hermétique (13, 14). Cette 2?ème¿ chambre, faite d'un 2?ème¿ matériau barrière, contient un fluide de gonflement à une 2?ème¿ pression supérieure à la 1?ère¿ pression de fluide. Cette 2?ème¿ chambre est fonctionnellement couplée à la 1?ère¿ chambre de façon que le fluide de gonflement de la 2?ème¿ chambre pénètre dans la 1?ère¿ chambre pour compléter le niveau de fluide sortant de la 1?ère¿ chambre.
Herridge David B.
Potter Daniel R.
Nike International Ltd.
Smart & Biggar
LandOfFree
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