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US 7,254,903 B2Granted
Footwear with ventilating and shock-absorbing device
OwnerJong Soo Cho, Hyeon San Jeonginventors
Life of this patent
Estimating the term…
Abstract
Disclosed is footwear including a ventilation and shock-absorbing device having an air pump and a check valve for passing air supplied by the air pump. The footwear includes an air chamber provided at a front of the check valve for storing the air supplied through an inlet passage connected to the check valve, and an air tube having one or more discharge holes for discharging the air stored in the air chamber into the footwear.
Claims16
A ventilated footwear comprising:
- a shoe sole:
- an air pump provided at a rear portion of the shoe sole:
- an inlet passage disposed at a front of the air pump, the inlet passage having a check valve for allowing air flow in a direction from the air pump but preventing air flow in an opposite direction:
- an air chamber provided at a front portion of the shoe sole, the air chamber having an enlarged area for storing air supplied from the air pump through the inlet passage connected to the check valve and thereby enabling shock absorbing with the air stored in the air chamber;
- and
- one or more discharge holes disposed at the air chamber for discharging the air stored in the air chamber into the footwear for ventilation;
- wherein a discharge passage is formed between the air chamber and the discharge holes to discharge the air from the air chamber to the discharge holes, the discharge passage being provided at a front thereof with first and second bent portions forming first and second branches for supplying the air into the discharge holes;
- and
- wherein the branches have different diameter.
6 more elements
A ventilated footwear comprising:
- a shoe sole:
- an air pump provided at a rear portion of the shoe sole:
- an inlet passage disposed at a front of the air pump, the inlet passage having a check valve for allowing air flow in a direction from the air pump but preventing air flow in an opposite direction:
- an air chamber provided at a front portion of the shoe sole, the air chamber having an enlarged area for storing air supplied from the air pump through the inlet passage connected to the check valve and thereby enabling shock absorbing with the air stored in the air chamber;
- and
- one or more discharge holes disposed at the air chamber for discharging the air stored in the air chamber into the footwear for ventilation;
- wherein a discharge passage is formed between the air chamber and the discharge holes to discharge the air from the air chamber to the discharge holes, the discharge passage being provided at a front thereof with first and second bent portions forming first and second branches for supplying the air into the discharge holes;
- and
- wherein the first and second bent portions have different length.
6 more elements
Dependencies are inferred from the claim text.