Patent ID: 6546648
Filing Date: 2003-04-15
Classification: A43B

Abstract:
An athletic shoe having a substantially horizontal chamber substantially within a heel portion of a mid-sole thereof, said chamber having atmospheric communication at lateral sides thereof, the chamber comprising:(a) an upper substantially rigid horizontal support plate having a plurality of transverse downwardly directed resilient cavities therein, each of said cavities defined by an upper resilient sleeve; (b) a lower substantially rigid horizontal support plate having a corresponding plurality of upwardly directed resilient cavities therein, each of said cavities defined by a lower resilient sleeve in which each opposing pair of said vertical cavities comprises respective portions of a single circumferential resilient sleeve defining an integration of said upper and lower sleeves; and (c) a plurality of resilient means disposed within an aggregate length of each opposing pair of said upper and lower cavities, said resilient means comprising a cylindrical body of a solid resilient material, said cylindrical body extending downwardly through said lower plate to a bottommost surface of an outer sole of said shoe, said resilient means each having a greater spring rate and spring constant than that of said resilient sleeve.