US3973613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire reinforcement
Assignee: Owens Corning
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Filing: 1974-12-12
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Granted: 1976-08-10
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Expires: 1994-12-12
Abstract
Abstract An improved tire reinforcement construction is disclosed. The construction includes a folded one-piece reinforced tread ply or belt, resulting in a two-ply belt structure. Elastomeric spacer members may be included in the vicinity of the folds to increase the radius of curvature at the folds. This construction simplifies belted tire assembly and results in improved tire wear characteristics. Glass fiber reinforced material is particularly suited for the folded belt.
Inventors
- 👤 Alfred Marzocchi
- 👤 David E. Leary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/26; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/10774; Y10T152/10792
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
In a pneumatic tire construction including a carcass, a tread connected to the carcass defining a pair of shoulders where the edges of the tread meet the carcass and a crown area extending from shoulder to shoulder, the improvement comprising at least one folded reinforcing belt within the crown peripherally circling the carcass beneath the tread, said belt containing a plurality of mutually parallel cords, said cords of said belt being positioned more closely adjacent to the outer surface of said belt at each fold than to the inner surface, the distance between said cords and said inner surface being sufficiently large to establish a predetermined radius of curvature of said cords at each fold in the belt.
Claim 2
Dependent Claim
118 words
In a pneumatic tire construction including a carcass, a tread connected to the carcass defining a pair of shoulders where the edges of the tread meet the carcass and a crown area extending from shoulder to shoulder, the improvement comprising at least one folded reinforcing belt within the crown peripherally circling the carcass beneath the tread, said belt containing a plurality of mutually parallel cords, said cords of said belt being positioned more closely adjacent to the outer surface of said belt at each fold than to the inner surface, the distance between said cords and said inner surface being sufficiently large to establish a predetermined radius of curvature of said cords at each fold in the belt.
Claim 3
Dependent Claim
17 words
The tire construction of claim 1 wherein said cords of said belt are comprised of glass fibers.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |