Patent US3942574A successfully refreshed from Google Patents.
US3942574A
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Tire bead
Assignee: Goodyear Tire and Rubber Co
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Filing: 1974-12-16
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Granted: 1976-03-09
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Expires: 1994-12-16
Abstract
Abstract A tire bead consisting of at least two cords of different materials. One of the cords is composed of aramid and the other of the cords is composed of metal for stabilizing the aramid cords and rigidifying the beads.
Inventors
- 👤 Robert L. Bantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:35
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/04; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10846
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
24 words
A tire bead consisting of a plurality of cords composed of aramid fibers and a single cord composed of metal for stiffening the bead.
Claim 2
Dependent Claim
24 words
A tire bead consisting of a plurality of cords composed of aramid fibers and a single cord composed of metal for stiffening the bead.
Claim 3
Dependent Claim
15 words
The tire bead of claim 1, wherein the metal cord is a single, wire ring.
Claim 4
Dependent Claim
16 words
The tire bead of claim 1, wherein the metal cord is a spirally wrapped metal cord.
Claim 5
Dependent Claim
35 words
The tire bead of claim 3, wherein the metal cord is disposed at the side of the bead closest the upstanding flange of a wheel rim when the tire bead is mounted on the rim.
Claim 6
Dependent Claim
15 words
The tire bead of claim 1, wherein the bead is composed mainly of aramid cords.
Claim 7
Dependent Claim
37 words
The tire bead of claim 5, wherein the aramid cords, when treated with an adhesive and fully processed for use in a tire bead, each have a modulus of elasticity of at least 300 grams per denier.
Claim 8
Dependent Claim
23 words
The tire bead of claim 1, used in conjunction with at least one like tire bead in the formation of an aircraft tire.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |