Back to results
US 7,124,519 B2Granted
Shoe sole having improved flexibility and method for making the same
AssigneeColumbia Insurance Company
InventorJames E. Issler
Life of this patent
Estimating the term…
Abstract
The invention relates to a sole and method for making the sole having a first material and a second material. The first material includes a plurality of extensions and the second material includes a plurality of sections, where each section is spaced apart from an adjacent section by at least one extension being placed between each section and each adjacent section.
Claims4
A sole, comprising:
- a first material having a main support extending in a generally longitudinal direction and a plurality of extensions extending laterally from said main body;
- a second material having a plurality of sections;
- each section being spaced apart from an adjacent section by at least one extension being placed between said each section and said adjacent section;
- the sole further comprises a top surface and a bottom surface;
- said first material extends from said top surface to said bottom surface, said first material extends from a bottom surface to a location between said top and bottom surfaces, and said first material extends from a top surface to a location between said top and bottom surfaces in various localized areas of the sole;
- said each section being encompassed by said first material;
- and
- wherein said first material has a modulus of elasticity higher than said second material.
5 more elements
A method for providing a sole, comprising the steps of:
- molding a first material to provide a main support and a plurality of extensions;
- extending the main support in a generally longitudinal direction;
- extending the plurality of extensions laterally from the main support;
- molding a second material to provide a plurality of sections;
- spacing each section apart from an adjacent section by at least one extension;
- providing a top surface and a bottom surface of the sole;
- extending the first material from the top surface to a location between the top and bottom surfaces of the sole;
- extending the first material from the bottom surface to a location between the top and bottom surfaces of the sole;
- and
- extending the first material from the top surface to the bottom surface of the sole.
7 more elements
Dependencies are inferred from the claim text.