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US 4,223,457 AGranted
Heel shock absorber for footwear
OwnerAlexander T. Borgeasinventor
Life of this patent
Estimating the term…
Abstract
Heel supporting and cushioning member for footwear controlling the movement of foot/leg muscles in the form of removable, preferably disposable heel and foot shock absorber comprising a pliable coil filled with an elastomeric material resiliently flexing with the movement of the heel.
Claims3
An insert for covering the heel position of footwear comprising:
- a pad portion,
- said pad portion comprising a relatively flat heel engageable member having an aperture formed therein,
- a resilient tubular member positioned in said aperture in said flat heel engageable member in a coiled configuration,
- said tubular member comprises a hollow configuration filled with an elastomeric material and positioned in said aperture to be substantially flush with the surface of said heel engaging member,
- a circular plug mounted in the center of said aperture having its heel engaging portion substantially flush with the heel engaging surface of said flat heel engageable member, and
- said tubular member being coiled around said circular plug,
- whereby when heelstrike of a user is applied to said tubular member, it momentarily distorts under the impact and returns to its initial position when the force is at least partially removed thereby serving as a shock and torque absorber.
4 more elements
Dependencies are inferred from the claim text.