US3682223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire bead construction
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1970-05-20
•
Granted: 1972-08-08
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Expires: 1990-05-20
Abstract
Abstract A radial wire pneumatic tire having a hard wedge shaped apex strip extending radially of and from each bead and a soft cushion strip disposed between the apex strip and the radial wire carcass. The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawing and the following detailed description.
Inventors
- 👤 Robert O Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:21
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/06; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828; Y10T152/10837; Y10T152/10846
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
150 words
A pneumatic tire comprising a pair only of annular bead cores; a carcass having its end portions turned up around said bead cores and axially displaced from the remaining portion of the carcass; an annular apex strip disposed between said carcass and each of said end portions and extending radially of and from each of said bead cores, said apex strip being substantially as wide as said one of said bead cores at said one of said bead cores, having a hardness of between 75 and 95 durometer and smoothly tapering to a point at its radially outer end; and, a first cushion strip having a hardness of between 50 and 75 durometer disposed axially inwardly with respect to said apex strip and between said apex strip and said carcass and extending for substantially the entire radial extent of said apex strip to separate said apex strip from said carcass.
Claim 2
Dependent Claim
150 words
A pneumatic tire comprising a pair only of annular bead cores; a carcass having its end portions turned up around said bead cores and axially displaced from the remaining portion of the carcass; an annular apex strip disposed between said carcass and each of said end portions and extending radially of and from each of said bead cores, said apex strip being substantially as wide as said one of said bead cores at said one of said bead cores, having a hardness of between 75 and 95 durometer and smoothly tapering to a point at its radially outer end; and, a first cushion strip having a hardness of between 50 and 75 durometer disposed axially inwardly with respect to said apex strip and between said apex strip and said carcass and extending for substantially the entire radial extent of said apex strip to separate said apex strip from said carcass.
Claim 3
Dependent Claim
40 words
A tire as claimed in claim 1, further including a second cushion strip having a hardness less than the hardness of said apex strip disposed between each said apex strip and said end portion turned up around said bead core.
Claim 4
Dependent Claim
25 words
A tire as claimed in claim 1, wherein said carcass is comprised of a plurality of parallel tire cords extending substantially in the radial direction.
Claim 5
Dependent Claim
19 words
A tire as claimed in claim 1, wherein said carcass comprises a single ply of radial wire tire cords.
Claim 6
Dependent Claim
21 words
A tire as claimed in claim 2, wherein and second cushion strips have a hardness of between 50 and 75 durometer.
Claim 7
Dependent Claim
27 words
A tire as claimed in claim 4, further including a second cushion strip disposed between each said apex strip and said end turned up around said bead.
Claim 8
Dependent Claim
20 words
A tire as claimed in claim 6, wherein second cushion strips have a hardness of between 50 and 75 durometer.
Claim 9
Dependent Claim
44 words
A tire as claimed in claim 7, which when mounted on a wheel said apex strip extends radially outwardly beyond the radially outer extent of the flange of said wheel a distance which is equal to at least the radial extent of said flange.
Claim 10
Dependent Claim
36 words
A tire as claimed in claim 8, wherein saiD apex strip has a hardness of between 80 and 88 durometer and said first and second cushion strips have a hardness of between 55 and 65 durometer.
Claim 11
Dependent Claim
36 words
A tire as claimed in claim 5, wherein said apex strip has a hardness of between 80 and 88 durometer and said first and second cushion strips have a hardness of between 55 and 65 durometer.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |