Patent US4598969A successfully refreshed from Google Patents.
Patent US4557307A successfully refreshed from Google Patents.
US4557307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Goodyear Tire and Rubber Co
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Filing: 1984-02-27
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Granted: 1985-12-10
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Expires: 2004-02-27
Abstract
Abstract A pneumatic tire and a method of constructing a tire bead for the same, in which the tire has a bead portion which is reinforced by a bead core of wire running around the bead portion and the wire is housed in a circular elastomeric support which forms a cradle in which the wire is located. The bead can be made by winding wire around the preformed elastomeric cradle.
Inventors
- 👤 Frank Philpott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:45
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/28; B60; B60C; B60C15/00; B60C15/04; B29D30/48; B29D2030/482; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/10792; Y10T152/10855
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
31 words
A tire wherein the support has a radial cross-section such that the channel therein has a substantially square cross-section and the outer surface of the support has a substantially circular cross-section.
Claim 2
Dependent Claim
31 words
A tire wherein the support has a radial cross-section such that the channel therein has a substantially square cross-section and the outer surface of the support has a substantially circular cross-section.
Claim 3
Dependent Claim
109 words
A pneumatic tire comprising a bead portion for seating the tire on a wheel rim, said bead portion having a bead assembly therein comprising a circular support that extends continuously around said bead portion and a bead core of wire reinforcement which also extends continuously around the bead portion, said support having a substantially U shaped radial cross section with the arms of the support directed radially outwardly of the tire to provide an annular channel therebetween which faces radially outwardly of the circular support, said bead core being disposed within said channel, said support comprising a polyurethane elastomer having a hardness of Shore A 70-100 at 20° C.
Claim 4
Dependent Claim
109 words
A pneumatic tire comprising a bead portion for seating the tire on a wheel rim, said bead portion having a bead assembly therein comprising a circular support that extends continuously around said bead portion and a bead core of wire reinforcement which also extends continuously around the bead portion, said support having a substantially U shaped radial cross section with the arms of the support directed radially outwardly of the tire to provide an annular channel therebetween which faces radially outwardly of the circular support, said bead core being disposed within said channel, said support comprising a polyurethane elastomer having a hardness of Shore A 70-100 at 20° C.
References Cited (Backward Citations)
US1498532A
Cited
US780209A
Cited
US1536080A
Cited
US1981893A
Cited
US2971553A
Cited
US2874747A
Cited
US3612137A
Cited
US3861442A
Cited
US3949800A
Cited
DE2412986A1
Cited
US4376458A
Cited
US4216814A
Cited
US4290471A
Cited
US4321957A
Cited
GB2123360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |