US3680231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear
Assignee: Individual
•
Filing: 1970-12-07
•
Granted: 1972-08-01
•
Expires: 1990-12-07
Abstract
Abstract An article of footwear which has a rotatable portion on its sole or heel to enable a wearer of the footwear readily to pivot on one foot. The invention also includes a device having a rotatable ground-engaging portion and a support member for rotatably retaining said portion on an article of footwear.
Inventors
- 👤 Joseph Francis Dymond
- 👤 Eveswell Park Road
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:56
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/162; A43C15/164; A43C15/167; A43B; A43B21/00; A43B21/36; A43B21/42; A43B21/433; A43B3/00; A43B3/0036; A43B3/0042; A43B5/00; A43B5/12; A43C15/161; A43C15/168
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
A device for use on the underside of an article of footwear and comprising a ground-engaging element, and means for rotatably supporting said element on the underside of said article, said element having a generally circular portion which is resiliently urged against the underside of the article when in position thereon, to form a rotary seal.
Claim 2
Independent Claim
56 words
A device for use on the underside of an article of footwear and comprising a ground-engaging element, and means for rotatably supporting said element on the underside of said article, said element having a generally circular portion which is resiliently urged against the underside of the article when in position thereon, to form a rotary seal.
Claim 3
Dependent Claim
21 words
A device according to claim 1 wherein the supporting means is a base member adapted rotatably to support the ground-engaging element.
Claim 4
Independent Claim
50 words
A device for use on the underside of an article of footwear and comprising a ground-engaging element, and a base member rotatably supporting said element on the underside of said article, the element being retained on the base member by cooperation of inclined surfaces on the element and base member.
Claim 5
Independent Claim
50 words
A device for use on the underside of an article of footwear and comprising a ground-engaging element, and a base member rotatably supporting said element on the underside of said article, the element being retained on the base member by cooperation of inclined surfaces on the element and base member.
Claim 6
Dependent Claim
34 words
A device according to claim 3 wherein the ground-engaging element has a generally circular portion which is resiliently urged against the underside of the article when in position thereon, to form a rotary seal.
Claim 7
Dependent Claim
25 words
A device according to claim 3 wherein the element is generally annular with an inner peripheral edge portion thereof forming one of said co-operating surfaces.
Claim 8
Dependent Claim
64 words
A device according to claim 5 wherein the inner peripheral edge portion of the element forms two mutually inclined surfaces, one of which co-operates with a circular bevelled surface of the base and the other of which co-operates with a circular bevelled surface of a retainer for securing to tHe base whereby the element is captively retained for rotation between the base and retainer.
Claim 9
Dependent Claim
48 words
A device according to claim 6 wherein the element is so shaped and arranged as to be resiliently stressed when retained between the base and retainer so that a circular outer peripheral portion thereof is urged into contact with the underside of the article to form a seal.
Claim 10
Dependent Claim
48 words
An article of footwear provided with a device according to claim 3 wherein a portion of the underside of the article carrying a part of a bevelled surface for co-operation with a similar surface on the element is detachable to allow the element to be inserted or removed.
Claim 11
Dependent Claim
65 words
An article of footwear provided with a device according to claim 3 wherein the element has a flexible outer peripheral portion which is deformed to permit said inclined surfaces to be brought into co-operation, the element also having a groove adjacent to and surrounding the inner periphery of said flexible portion for receiving a stiffening element to prevent flexing and removal of the inserted element.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |