US3625271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial tire with strengthened bead tie-in
Assignee: Individual
•
Filing: 1970-07-13
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Granted: 1971-12-07
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Expires: 1990-07-13
Abstract
Abstract The annular margins of a radial ply carcass are plaited or folded back and turned around the bead cores such that the bead portion and, if preferred, the lower or inner portions of the sidewalls of the tire are reinforced by four layers of ply cords while the remainder of the tire carcass reinforcement is in the form of a single layer of cords. Thus, in one tire, advantages of a single radial ply carcass reinforcement are combined with advantages of a two-ply ''''tie-in'''' at the beads. The plaited margins can be either turned ''''up'''' or turned ''''down'''' around the bead cores thereby locating each folded terminal edge of the carcass either outside or inside the bead cores.
Inventors
- 👤 Harry Lewis Hutch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
B; B60; B60C; B60C15/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828; Y10T152/10855; Y10T152/10864
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
A pneumatic tire having an annular tread portion including a circumferentially disposed belt assembly, a pair of axially spaced bead portions disposed radially inwardly relative to said tread portion, each bend portion including a substantially circular, substantially rigid bead assembly, a pair of axially spaced sidewall portions extending from said bead portions to said tread portion and at least one carcass ply structure having radially disposed reinforcing cords extending from bead portion to bead portion radially along said sidewall portions and axially across said tread portion, said carcass ply structure including plaited, annular margins turned around said bead assemblies so as to form two layers of cord reinforcement disposed both axially inwardly and outwardly of said bead assembly in each of said bead portions.
Claim 2
Dependent Claim
124 words
A pneumatic tire having an annular tread portion including a circumferentially disposed belt assembly, a pair of axially spaced bead portions disposed radially inwardly relative to said tread portion, each bend portion including a substantially circular, substantially rigid bead assembly, a pair of axially spaced sidewall portions extending from said bead portions to said tread portion and at least one carcass ply structure having radially disposed reinforcing cords extending from bead portion to bead portion radially along said sidewall portions and axially across said tread portion, said carcass ply structure including plaited, annular margins turned around said bead assemblies so as to form two layers of cord reinforcement disposed both axially inwardly and outwardly of said bead assembly in each of said bead portions.
Claim 3
Dependent Claim
38 words
The pneumatic tire as defined in claim 1 wherein said plaited, annular margins are turned up around said bead assemblies thereby locating the folded terminal edges of said at least one carcass ply axially outside said bead assemblies.
Claim 4
Dependent Claim
38 words
The pneumatic tire as defined in claim 1 wherein said plaited, annular margins are turned down around said bead assemblies thereby locating the folded, terminal edges of said at least one carcass ply axially inside said bead assemblies.
Claim 5
Dependent Claim
44 words
The pneumatic tire as defined in claim 1 wherein said at least one carcass ply structure having radially disposed reinforcing cords comprises a single ply extending continuously from bead portion to bead portion radially along said sidewall portions and axially across said tread portion.
Claim 6
Dependent Claim
38 words
The pneumatic tire as defined in claim 4 wherein said plaited, annular margins are turned up around said bead assemblies thereby locating the folded terminal edges of said at least one carcass ply axially outside said bend assemblies.
Claim 7
Dependent Claim
38 words
The pneumatic tire as defined in claim 4 wherein said plaited, annular margins are turned down around said bead assemblies thereby locating the folded terminal edges of said at least one carcass ply axially inside said bead assemblies.
References Cited (Backward Citations)
DE579877C
Cited
DE1480944A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |