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US 4,430,811 AGranted
Footwear
AssigneeSakashita Co., Ltd.
InventorHozuma Okada
Life of this patent
Estimating the term…
Abstract
A footwear such as shoes, boots, slippers etc., comprises a three-layered structure including an outer cover, an intermediate layer made of foamed urethane and an inner cover. The inner cover has a double-layered structure including first and second layer of fabric and the first and second layer are so combined as not only to show good absorption of the sweat emitted from the wearer's foot but also to keep the surface thereof held in contact to the foot dry.
Claims7
Footwear comprising;
- an intermediate layer made of foamed urethane and having first and second opposite surfaces;
- an outer cover bonded to the first surface of the intermediate layer and so shaped as to cover at least a portion of the foot of a wearer;
- and an inner cover bonded to the second surface of the intermediate layer and held in position to contact the foot of the wearer when the footwear is in use;
- said inner cover being of a double-layered structure including first and second layers of fabric joined together, the first layer being a woven or knitted fabric and adapted to contact the wearer's foot and the second layer being bonded to the intermediate layer,
- the fabric of said first layer having a relatively high moisture permeability and a relatively low moisture holding capability whereas the fabric of said second layer has a relatively high moisture holding capability.
2 more elements
Dependencies are inferred from the claim text.