US4223457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel shock absorber for footwear
Assignee: Individual
•
Filing: 1978-09-21
•
Granted: 1980-09-23
•
Expires: 1998-09-21
Abstract
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.
Inventors
- 👤 Alexander T. Borgeas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:50
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/189; A43B21/00; A43B21/24; A43B21/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
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.
Claim 2
Dependent Claim
153 words
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.
Claim 3
Dependent Claim
15 words
The insert set forth in claim 1 wherein: said aperture is substantially circular in shape.
Claim 4
Dependent Claim
16 words
The insert set forth in claim 1 wherein: said tubular configuration is rectangular in cross-sectional configuration.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |