CUSHIONING AND SHOCK ABSORBING MIDSOLE
First Claim
Patent Images
1. A midsole of a shoe comprising:
- a top layer;
a middle layer extending at least partially across the length of said top layer and attachable to said top layer; and
a bottom layer attachable to said middle layer along at least a portion of its length;
said top layer having a hardness greater than said middle and bottom layers, and said middle layer having a hardness greater than said bottom layer.
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Abstract
A midsole adapted for attachment to a shoe having multiple layers of varying materials each having a different hardness level. More particularly, the present midsole includes a top, middle and bottom layer wherein all three layers of material have a different hardness range and wherein at least one of the layers is made from thermoplastic rubber (TPR). In one embodiment, the thermoplastic rubber (TPR) layer lies between the top and bottom layers and in another embodiment, the thermoplastic rubber (TPR) layer is the bottom layer. The thermoplastic rubber (TPR) layer may also have a length shorter than the other two layers forming the midsole.
88 Citations
34 Claims
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1. A midsole of a shoe comprising:
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a top layer; a middle layer extending at least partially across the length of said top layer and attachable to said top layer; and a bottom layer attachable to said middle layer along at least a portion of its length; said top layer having a hardness greater than said middle and bottom layers, and said middle layer having a hardness greater than said bottom layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A midsole of a shoe comprising:
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a top layer made of a material having a hardness in the range of 60-90°
Asker C hardness;a middle layer extending at least partially across the length of said top layer and attachable to said top layer, said middle layer being made of a material having a hardness in the range of 40-60°
Asker C hardness; anda bottom layer attachable to said middle layer along at least a portion of its length, said bottom layer being made of a material having a hardness in the range of 20-40°
Asker C hardness. - View Dependent Claims (13, 14, 15, 16)
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17. A midsole of a shoe comprising:
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a top layer; a middle layer attachable to said top layer; and a bottom layer extending at least partially across the length of said middle layer and attachable to said middle layer; said top layer having a hardness greater than said middle and bottom layers, and said bottom layer have a hardness greater than said middle layer. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A midsole of a shoe comprising:
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a top layer made of a material having a hardness in the range of 60-90°
Asker C hardness;a middle layer attachable to said top layer and being made of a material having a hardness in the range of 20-40°
Asker C hardness; anda bottom layer attachable to said middle layer along at least a portion of its length, said bottom layer being made of a material having a hardness in the range of 40-60°
Asker C hardness. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification