US3949800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire with package bead ring
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1974-03-01
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Granted: 1976-04-13
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Expires: 1994-03-01
Abstract
Abstract A pneumatic tire comprises a bead, a package bead ring in the bead, and a carcass reinforcement turned around the bead ring. The bead ring comprises at least one wire having a cross section of a quadrilateral with two parallel opposite faces. The wire or wires form multiple turns around the tire through the bead that are contiguous in directions extending both radially and axially of the tire.
Inventors
- 👤 Daniel Lejeune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:27
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/06; B60C15/04; D; D07; D07B; D07B1/00; D07B1/06; D07B1/0606; D07B1/062; B60C2015/044; D07B2201/00; D07B2201/20; D07B2201/2001; D07B2201/2002; D07B2201/2003; D07B2201/2015; D07B2201/2033; D07B2501/00; D07B2501/20; D07B2501/2046; D07B2501/2053; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10846
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A pneumatic tire comprising a bead, a package bead ring in the bead, and a carcass reinforcement turned around the bead ring, the bead ring comprising at least one metal wire having a cross section of a quadrilateral with two parallel opposite faces, said at least one wire forming adjoining multiple turns around the tire through the bead, said adjoining turns making metal-to-metal contact with each other along their facing surfaces in directions extending both radially and axially of the tire, further comprising a rubber sheathing surrounding the bead ring and a stuffing rubber around the bead ring and contained within the sheathing.
Claim 2
Dependent Claim
103 words
A pneumatic tire comprising a bead, a package bead ring in the bead, and a carcass reinforcement turned around the bead ring, the bead ring comprising at least one metal wire having a cross section of a quadrilateral with two parallel opposite faces, said at least one wire forming adjoining multiple turns around the tire through the bead, said adjoining turns making metal-to-metal contact with each other along their facing surfaces in directions extending both radially and axially of the tire, further comprising a rubber sheathing surrounding the bead ring and a stuffing rubber around the bead ring and contained within the sheathing.
Claim 3
Dependent Claim
16 words
A tire according to claim 1 wherein the stuffing rubber is softer than the sheathing rubber.
Claim 4
Dependent Claim
43 words
A tire according to claim 1 wherein the bead comprises a first rubber and an apex rubber of a different quality, the apex rubber being outside the sheathing and disposed radially outwardly thereof and the stuffing rubber being harder than the apex rubber.
References Cited (Backward Citations)
US1503883A
Cited
US1503985A
Cited
US2149079A
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US2752980A
Cited
US3142327A
Cited
US2904095A
Cited
US2992671A
Cited
US2987095A
Cited
US3548912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |