Patent ID: 9693603
Date: 2017-07-04
CPC Classifications: A43B,A61F

Claim:
1. Orthotics or other footwear inserts for an intended wearer, comprising: a set of separate and incrementally different inserts each sized and adapted for a same standard size of a right and/or left foot of the intended wearer; one said insert in said set having a first corrective structure and at least another said insert in said set having a second corrective structure that is incrementally different from the first corrective structure; as viewed in a frontal plane cross section taken at a same location of each of said inserts in said set, when said inserts in said set are upright and in an unloaded condition; the second corrective structure including an incremental change in curvature of at least one sidemost portion of said insert in said set as compared to the first corrective structure and a corrective structure of each other said insert in said set, when viewed in a frontal plane cross-section when said orthotics or other footwear inserts are upright and in an unloaded condition, wherein said incremental change is one of an increase or decrease in curvature; said inserts in said set having a progressive sequence based on the increase or decrease in the curvature of said at least one sidemost portion of each said insert in said set; each said insert in said set including at least one internal sipe formed by internal surface portions of each said insert in said set, wherein the surface portions forming the at least one internal sipe oppose each other and move relative to each other in a sliding motion; and wherein said orthotics or other footwear inserts comprising each said insert in said set are adapted to be worn one at a time for a period of time using said inserts in said set sequentially based on the progressive sequence.