US3581794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced tread tire
Assignee: Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
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Filing: 1968-12-06
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Granted: 1971-06-01
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Expires: 1988-12-06
Abstract
Abstract This invention relates to radial ply pneumatic tires, of the kind where the tread is reinforced by a reinforcing strap. According to this invention, the reinforcing strap throughout its width is substantially parallel to the tread surface. Moreover, it is wider than the surface of the tread when new and is at least equal to the maximum width of the tread surface after wear. The surface of the tread has a regular transverse curvature of radius equal to at least 1.3 times the height of the tire section.
Inventors
- 👤 Rene Heuze
- 👤 Jean Menin
- 👤 Henri Plubel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A tire for use with heavy vehicles comprising a radial ply carcass and a breaker belt, the said belt including layers of material of equal size and being parallel to the tread surface, wherein the tread surface has a regular transverse curvature having a radius which is at least equal to 1.3 times the height of the cross section of the tire, and the width (L) of the belt is greater than the maximum width S of the tread surface at the point of maximum wear of the tread pattern, and the tire further comprising lateral bosses, each covering a respective edge of the belt, being located below the level of the hollows of the tread pattern and extending continuously around the tire.
Claim 2
Dependent Claim
123 words
A tire for use with heavy vehicles comprising a radial ply carcass and a breaker belt, the said belt including layers of material of equal size and being parallel to the tread surface, wherein the tread surface has a regular transverse curvature having a radius which is at least equal to 1.3 times the height of the cross section of the tire, and the width (L) of the belt is greater than the maximum width S of the tread surface at the point of maximum wear of the tread pattern, and the tire further comprising lateral bosses, each covering a respective edge of the belt, being located below the level of the hollows of the tread pattern and extending continuously around the tire.
References Cited (Backward Citations)
US3090417A
Cited
US3310094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |