US3886674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article of footwear
Assignee: Individual
•
Filing: 1973-11-23
•
Granted: 1975-06-03
•
Expires: 1993-11-23
Abstract
Abstract A sole has a toe end and a heel end. A heel is located at the heel end and has one portion closer to and another portion farther from the toe end. A pivot connects the one portion with the sole so that the heel can pivot relative to the sole about a transverse axis extending parallel to the plane of the sole. One or more biasing springs are interposed between and bear upon the heel and the heel end of the sole, first to normally maintain the other portion of the heel spaced from the sole and to resiliently resist pivoting of the heel toward the sole. The opposite ends of the springs are connected to the heel and the sole, respectively.
Inventors
- 👤 Rafael Saurina Pavia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:13
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/24; A43B21/30; A43B21/36; A43B21/42; A43B21/433
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
In an article of footwear, a combination comprising a sole having a toe end and a heel end; a heel located at said heel end and having one portion closer to and another portion farther from said toe end, said heel including a ground-engaging part having a surface facing said sole, and a plate part overlying said surface and having in the region of said one portion a bend extending towards said sole; pivot means connectiNg said bend with said sole, so that said heel can pivot about a transverse axis extending parallel to the plane of said sole; biasing means interposed between and bearing upon said heel and said heel end of said sole, so as to normally maintain said other portion spaced from said sole and to resiliently resist pivoting of the heel toward said sole; and connecting means connecting said biasing means with said heel and said sole, respectively.
Claim 2
Dependent Claim
152 words
In an article of footwear, a combination comprising a sole having a toe end and a heel end; a heel located at said heel end and having one portion closer to and another portion farther from said toe end, said heel including a ground-engaging part having a surface facing said sole, and a plate part overlying said surface and having in the region of said one portion a bend extending towards said sole; pivot means connectiNg said bend with said sole, so that said heel can pivot about a transverse axis extending parallel to the plane of said sole; biasing means interposed between and bearing upon said heel and said heel end of said sole, so as to normally maintain said other portion spaced from said sole and to resiliently resist pivoting of the heel toward said sole; and connecting means connecting said biasing means with said heel and said sole, respectively.
Claim 3
Dependent Claim
152 words
In an article of footwear, a combination comprising a sole having a toe end and a heel end; a heel located at said heel end and having one portion closer to and another portion farther from said toe end, said heel including a ground-engaging part having a surface facing said sole, and a plate part overlying said surface and having in the region of said one portion a bend extending towards said sole; pivot means connectiNg said bend with said sole, so that said heel can pivot about a transverse axis extending parallel to the plane of said sole; biasing means interposed between and bearing upon said heel and said heel end of said sole, so as to normally maintain said other portion spaced from said sole and to resiliently resist pivoting of the heel toward said sole; and connecting means connecting said biasing means with said heel and said sole, respectively.
Claim 4
Dependent Claim
152 words
In an article of footwear, a combination comprising a sole having a toe end and a heel end; a heel located at said heel end and having one portion closer to and another portion farther from said toe end, said heel including a ground-engaging part having a surface facing said sole, and a plate part overlying said surface and having in the region of said one portion a bend extending towards said sole; pivot means connectiNg said bend with said sole, so that said heel can pivot about a transverse axis extending parallel to the plane of said sole; biasing means interposed between and bearing upon said heel and said heel end of said sole, so as to normally maintain said other portion spaced from said sole and to resiliently resist pivoting of the heel toward said sole; and connecting means connecting said biasing means with said heel and said sole, respectively.
Claim 5
Dependent Claim
43 words
A combination as defined in claim 1, wherein said biasing means comprises biasing spring means having end portions respectively located adjacent to said heel and said sole; and wherein said connecting means connects said end portions to said heel and said sole, respectively.
Claim 6
Dependent Claim
31 words
A combination as defined in claim 1, wherein said biasing means comprises biasing spring means having one portion connected with said sole, and another end portion connected with said plate part.
Claim 7
Dependent Claim
22 words
A combination as defined in claim 3, wherein said connecting means comprises screw means connecting said plate part with said ground-engaging part.
Claim 8
Dependent Claim
28 words
A combination as defined in claim 3, wherein said biasing spring means comprises a single biasing spring interposed between said sole and said other portion of said heel.
Claim 9
Dependent Claim
39 words
A combination as defined in claim 3, wherein said biasing spring means comprises a plurality of biasing springs at least one of which is closer to and at least one other of which is farther from said pivot means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |