Patent US3678982A successfully refreshed from Google Patents.
US3678982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic radial tire
Assignee: Bridgestone Corp
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Filing: 1969-08-22
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Granted: 1972-07-25
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Expires: 1989-08-22
Abstract
Abstract A pneumatic radial tire for use in large vehicles having a carcass ply consisting of layers of rubber coated cords extending in radial directions of the tire between beads on both sides, and a reinforcing breaker in a crown encircling the carcass ply in circumferential directions. At least one organic, natural or synthetic cord layer wider than adjacent metal cord layers is arranged between the metal cord layers forming a breaker.
Inventors
- 👤 Shigeo Watanabe
- 👤 Toshiyuki Sogi
- 👤 Tsuneo Mukai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:29
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/20; B60C9/2003; B60C9/2009; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/10792
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
A pneumatic tire having a. a carcass composed of at least one body ply of substantially radially oriented cords, b. a tread exterior to said carcass, and c. a breaker interposed between said carcass and said tread, said breaker being composed of at least outer and inner layers of rubberized metal cords and a median layer of rubberized organic textile cords extending continuously over the length of said layer, said organic textile cords comprising a plurality of strands of a collection of a great plurality of individual organic fibers, said median layer being sandwiched between said outer and inner metal cord layers, said median layer extending substantially within the extend of said tread, and said median layer being wider than the adjacent metal cord layers.
Claim 2
Dependent Claim
125 words
A pneumatic tire having a. a carcass composed of at least one body ply of substantially radially oriented cords, b. a tread exterior to said carcass, and c. a breaker interposed between said carcass and said tread, said breaker being composed of at least outer and inner layers of rubberized metal cords and a median layer of rubberized organic textile cords extending continuously over the length of said layer, said organic textile cords comprising a plurality of strands of a collection of a great plurality of individual organic fibers, said median layer being sandwiched between said outer and inner metal cord layers, said median layer extending substantially within the extend of said tread, and said median layer being wider than the adjacent metal cord layers.
Claim 3
Dependent Claim
30 words
A pneumatic tire cord according to claim 1, wheRein a layer of rubberized organic textile cords is located on the outermost side of the outer layer of rubberized metal cords.
Claim 4
Dependent Claim
27 words
A pneumatic tire according to claim 1, wherein said organic textile cord layer is selected from the group consisting of nylon, rayon, polyester, vinylon, cotton and hemp.
Claim 5
Dependent Claim
118 words
A pneumatic tire having a. a carcass composed of at least one body ply of substantially radially oriented cords, b. a tread exterior to said carcass, c. a breaker interposed between said carcass and said tread, said breaker being composed of at least three metal cord layers, the innermost metal cord layer having cords arranged at an angle of 45*-85* to the circumferential direction of the tire, the remaining metal cord layers having cords arranged at an angle less than 30* and crossing to each other, and d. at least one organic textile cord layer interposed between said remaining metal cord layers having cords arranged at an angle less than 30* to the circumferential direction of the tire.
Claim 6
Dependent Claim
118 words
A pneumatic tire having a. a carcass composed of at least one body ply of substantially radially oriented cords, b. a tread exterior to said carcass, c. a breaker interposed between said carcass and said tread, said breaker being composed of at least three metal cord layers, the innermost metal cord layer having cords arranged at an angle of 45*-85* to the circumferential direction of the tire, the remaining metal cord layers having cords arranged at an angle less than 30* and crossing to each other, and d. at least one organic textile cord layer interposed between said remaining metal cord layers having cords arranged at an angle less than 30* to the circumferential direction of the tire.
Claim 7
Dependent Claim
27 words
A pneumatic tire according to claim 4, wherein said organic textile cord layer is selected from the group consisting of nylon, rayon, polyester, vinylon, cotton and hemp.
References Cited (Backward Citations)
US2493614A
Cited
GB726810A
Cited
FR1111806A
Cited
US3095027A
Cited
CH406862A
Cited
US3315722A
Cited
US3386487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |