US4957799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing layers for bias tires
Assignee: Toyo Tire Corp
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Filing: 1988-08-31
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Granted: 1990-09-18
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Expires: 2008-08-31
Abstract
Abstract Reinforcing layers for bias tires comprising a laminated structure of a steel cord ply and composite cord plies made of aramid yarns and nylon yarns, said composite cord plies being disposed radially outwardly of the steel cord ply maintaining a full space between steel cords and composite cords and a nominal total denier of said composite cords being in the range of 4,000-10,000.
Inventors
- 👤 Jiro Miyamoto
- 👤 Takashi Nakasai
- 👤 Yukio Komai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0042; B60C9/005; B60C9/18; B60C9/20; B60C9/2003; B60C9/2009; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828; Y10T428/00; Y10T428/24; Y10T428/24132
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
87 words
Reinforcing layers for bias tires including at least two cord plies disposed radially outwardly of a carcass layer, said cord plies comprising a steel cord ply and at least one ply of composite cord plies made of aramid yarns and nylon yarns and having a nominal total denier of 4,000-10,000, said composite cord ply being laminated radially outwardly of said steel cord ply, wherein a cord space is maintained between steel cords and composite cords in the range of 0.5-5.0 times the diameter of the steel cords.
Claim 2
Dependent Claim
87 words
Reinforcing layers for bias tires including at least two cord plies disposed radially outwardly of a carcass layer, said cord plies comprising a steel cord ply and at least one ply of composite cord plies made of aramid yarns and nylon yarns and having a nominal total denier of 4,000-10,000, said composite cord ply being laminated radially outwardly of said steel cord ply, wherein a cord space is maintained between steel cords and composite cords in the range of 0.5-5.0 times the diameter of the steel cords.
Claim 3
Dependent Claim
31 words
Reinforcing layers for bias tires as claimed in claim 1, wherein the end counts of the composite cords are in the range of 3.0/cm-7.7/cm at the center portion of the tire.
Claim 4
Dependent Claim
145 words
Reinforcing layers for bias tires including at least two cord plies disposed radially outwardly of a carcass layer, said reinforcing layers comprising a main portion having two ends and a supplemental portion located at both ends of said main portion, said main portion being a laminated structure comprising a steel cord ply and at least one ply of composite cord plies made of aramid yarns and nylon yarns and having a nominal total denier of 4,000-10,000, said composite cord ply being laminated radially outwardly of said steel cord ply, wherein a cord space is maintained between steel cords and composite cords in the range of 0.5-5.0 times the diamter of the steel cords, said composite cord ply of said main portion having ends which extend from both ends of said main portion along the carcass layer to constitute said supplemental portion of said reinforcing layer.
Claim 5
Dependent Claim
145 words
Reinforcing layers for bias tires including at least two cord plies disposed radially outwardly of a carcass layer, said reinforcing layers comprising a main portion having two ends and a supplemental portion located at both ends of said main portion, said main portion being a laminated structure comprising a steel cord ply and at least one ply of composite cord plies made of aramid yarns and nylon yarns and having a nominal total denier of 4,000-10,000, said composite cord ply being laminated radially outwardly of said steel cord ply, wherein a cord space is maintained between steel cords and composite cords in the range of 0.5-5.0 times the diamter of the steel cords, said composite cord ply of said main portion having ends which extend from both ends of said main portion along the carcass layer to constitute said supplemental portion of said reinforcing layer.
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) | 1993-09-17 | 1994-03-19 | 1994-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-17 | 1998-03-19 | 1998-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-17 | 2002-03-19 | 2002-09-18 | $7700.00 | Window Closed / Lapsed |