Footwear having an outer shell of foam
First Claim
1. A lasted footwear for enclosing a human foot having a heel, an ankle, and medial and lateral sides, said lasted footwear comprising an outer shell for receiving the heel, the ankle and the medial and lateral sides of the foot, said outer shell comprising a layer of thermoformed foam, said layer of thermoformed foam comprising first and second opposite surfaces, one of said first and second opposite surfaces being heat-treated.
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Accused Products
Abstract
A lasted footwear for enclosing a human foot having a heel, an ankle and medial and lateral sides. The footwear comprises an outer shell for receiving the heel, the ankle, and the medial and lateral sides of the foot. The outer shell comprises a layer of thermoformed foam comprising first and second opposite surfaces, one of the first and second opposite surfaces being heat-treated.
71 Citations
41 Claims
- 1. A lasted footwear for enclosing a human foot having a heel, an ankle, and medial and lateral sides, said lasted footwear comprising an outer shell for receiving the heel, the ankle and the medial and lateral sides of the foot, said outer shell comprising a layer of thermoformed foam, said layer of thermoformed foam comprising first and second opposite surfaces, one of said first and second opposite surfaces being heat-treated.
- 10. A lasted skate boot for enclosing a human foot, the foot having a heel, an ankle, medial and lateral sides, a plantar surface and toes, said skate boot comprising an outer shell comprising a heel counter for receiving the heel of the foot, an ankle portion for receiving the ankle and medial and lateral quarters for receiving the medial and lateral sides of the foot respectively, said outer shell comprising a layer of thermoformed foam, said layer of thermoformed foam comprising first and second opposite surfaces, one of said first and second opposite surfaces being heat-treated.
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32. A method of making a lasted skate boot for enclosing a human foot, the foot having a heel, an ankle, medial and lateral sides, a plantar surface and toes, said method comprising:
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(a) selecting a layer of thermoformable foam having first and second opposite surfaces;
(b) heat treating at least one of said first and second opposite surfaces of said layer of thermoformable foam; and
(c) thermoforming said layer of thermoformable foam for constructing an outer shell having a foot-receiving cavity with a three-dimensional geometry that conforms to the heel, ankle and medial and lateral sides of the foot. - View Dependent Claims (33, 34, 35)
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36. A method of making a lasted skate boot for enclosing a human foot, the foot having a heel, an ankle, medial and lateral sides, a plantar surface and toes, said method comprising:
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(a) selecting a layer of thermoformable foam having first and second opposite surfaces;
(b) heat treating at least one of said first and second opposite surfaces of said layer of thermoformable foam;
(c) forming a multi-layer composite sheet having said layer of thermoformable foam; and
(d) thermoforming said multi-layer composite sheet for constructing an outer shell having a foot-receiving cavity with a three-dimensional geometry that conforms to the heel, ankle and medial and lateral sides of the foot. - View Dependent Claims (37, 38, 39, 40, 41)
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Specification