Patent US4732199A successfully refreshed from Google Patents.
US4732199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial tire for high internal pressure
Assignee: SUMITOMA RUBBER INDUSTRIES Ltd 1-1 TSUTSU-CHO 1-CHOME CHUO-KU KOBE-SHI HYOGA-KEN JAPAN
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Filing: 1986-05-21
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Granted: 1988-03-22
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Expires: 2006-05-21
Abstract
Abstract A radial tire for high internal pressure, comprising a carcass having an innermost ply formed of nylon fiber cords and at least one ply of aramid fiber cords disposed outside the innermost ply, whereby the weight is able to be decreased without a sacrifice of durability.
Inventors
- 👤 Shinzou Kajiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:38
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/02; B60C9/04; B60C9/08; B60C2009/0475; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10855; Y10T152/10873
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A radial tire for high internal pressure, comprising: a carcass formed of a plurality of plies fastened in place by opposite ends thereof folded axially outwardly around a pair of laterally opposed bead cores; and a belt disposed outside the crown part of said carcass, said carcass having a radial innermost reinforcement ply of nylon fiber and at least one ply of aramid fiber cords positioned radially outside said innermost ply.
Claim 2
Dependent Claim
71 words
A radial tire for high internal pressure, comprising: a carcass formed of a plurality of plies fastened in place by opposite ends thereof folded axially outwardly around a pair of laterally opposed bead cores; and a belt disposed outside the crown part of said carcass, said carcass having a radial innermost reinforcement ply of nylon fiber and at least one ply of aramid fiber cords positioned radially outside said innermost ply.
Claim 3
Dependent Claim
25 words
A radial tire according to claim 1, wherein a belt layer made of nylon cords is disposed outside the said crown part of the carcass.
Claim 4
Dependent Claim
28 words
A radial tire according to claim 2, wherein a band having cords arranged substantially parallel to the circumferential direction of the tire is disposed outside the belt layer.
Claim 5
Dependent Claim
30 words
A radial tire according to claim 1 in which the carcass plies are arranged at an angle of 75° to 90° with respect to the mid-circumferential plane of the tire.
Claim 6
Dependent Claim
83 words
A radial tire for high internal pressure comprising: a carcass having a plurality of plies fastened in place by opposite ends thereof being folded axially outwardly around a pair of laterally opposed bead cores; said carcass plies comprising a radial innermost reinforcement ply of nylon fibers having high compressive strength and two plies of aramid fiber cords having high elasticity positioned radially outside said innermost nylon ply; and a belt disposed radially outside said carcass plies around the crown region of said carcass.
Claim 7
Dependent Claim
83 words
A radial tire for high internal pressure comprising: a carcass having a plurality of plies fastened in place by opposite ends thereof being folded axially outwardly around a pair of laterally opposed bead cores; said carcass plies comprising a radial innermost reinforcement ply of nylon fibers having high compressive strength and two plies of aramid fiber cords having high elasticity positioned radially outside said innermost nylon ply; and a belt disposed radially outside said carcass plies around the crown region of said carcass.
Claim 8
Dependent Claim
30 words
A radial tire according to claim 5 in which the carcass plies are arranged at an angle of 75° to 90° with respect to the mid-circumferential plane of the tire.
References Cited (Backward Citations)
FR2337052A1
Cited
US4177852A
Cited
US4258773A
Cited
US4371025A
Cited
US4445560A
Cited
JPS6171204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |