Waterproof footwear
AssigneeColumbia Insurance Company
InventorCharles E. Covatch
Life of this patent
Estimating the term…
Abstract
An article of footwear includes an outer boot having a sole and an upper that together define a volume for receiving and protecting a wearer's foot against external elements, an outer waterproof bootie sized and shaped to fit snugly within the volume, and an inner bootie disposed within the outer bootie. The outer bootie has a waterproofing layer impervious to penetration by water for keeping the wearer's foot dry in wet conditions, and a thermal insulating layer for preventing thermal loss. The inner bootie includes another thermal insulating layer for further preventing thermal loss.
Claims16
An article of footwear comprising:
- a shoe or boot having a sole and an upper, said sole and upper together defining a volume for receiving and protecting a wearer's foot against external elements;
- an outer waterproof bootie sized and shaped to fit snugly within said volume, said outer waterproof bootie including:
- a waterproofing layer impervious to penetration by water for keeping the wearer's foot dry in wet conditions;
- a first thermal insulating layer for preventing thermal loss;
- and
- first stitching for attaching the waterproofing layer to the first thermal insulating layer;
- and
- an inner bootie constructed to maintain its shape separate from said outer bootie, said inner bootie disposed within the outer bootie, said inner bootie including:
- a second thermal insulating layer for further preventing thermal loss;
- and
- second stitching, separate from said first stitching, and passing through said second thermal insulating layers;
- wherein said first stitching associated with said outer bootie is in the form of first quilting and said second stitching associated with said inner bootie is in the form of second quilting.
An article of footwear comprising:
- a shoe or boot having a sole and an upper, said sole and upper together defining a volume for receiving and protecting a wearer's foot against external elements;
- an outer bootie sized and shaped to fit snugly within said volume, said outer waterproof bootie including:
- a waterproofing layer impervious to penetration by water for keeping the wearer's foot dry in wet conditions,
- a first thermal insulating layer, and
- a first backing layer for maintaining the shape of said first thermal insulating layer,
- first stitching for attaching the waterproofing layer, the first thermal insulating layer, and the first backing layer together;
- said waterproofing layer being an outermost layer, and said first thermal insulating layer disposed and providing thermal insulation, between said waterproofing layer and said first backing layer;
- and
- an inner bootie constructed to maintain its shape separate from said outer bootie, said inner bootie disposed within the outer bootie including:
- a liner layer for contacting a wearer's foot and allowing transmission of perspiration away from the wearer's foot,
- a second thermal layer, and
- a second backing layer for maintaining the shape of said second thermal insulating layer, and
- second stitching for attaching said second thermal insulating layer, liner layer and second backing layer together, said second backing layer position adjacent to said first backing layer so that said second thermal insulating layer is disposed between said liner layer and said second backing layer;
- wherein said first stitching associated with said outer bootie is in the form of first quilting and said second stitching associated with said inner bootie is in the form of second quilting.
Dependencies are inferred from the claim text.