US4029137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1975-12-15
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Granted: 1977-06-14
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Expires: 1995-12-15
Abstract
Abstract An aircraft tire having a plurality of bias carcass plies and a pair of bead portions, each including three inextensible bead cores. All of the carcass plies in each bead portion are wrapped about the two axially innermost bead cores while the axially outermost bead core is free of any radial stresses imparted by carcass plies.
Inventors
- 👤 Robert D. Suydam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
B; B60; B60C; B60C15/00; B60C15/0009; B60C15/0081; B60C15/04; B60C15/05; B60C2200/00; B60C2200/02; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
In an aircraft tire comprising a tread portion, a pair of sidewall portions, a pair of spaced-apart bead portions each having an axially outwardly facing flange engaging surface, a plurality of carcass plies extending circumferentially about the tire from bead portion to bead portion, and at least three inextensible bead cores disposed side-by-side in each bead portion and spaced-apart axially, the improvement comprising: at least one carcass ply wrapped around, and anchoring to said tire, each of the bead cores other than the axially outermost bead cores closest said flange engaging surfaces, the radially innermost carcass ply being wrapped around the bead cores of each bead portion and the carcass plies anchoring the bead cores other than the axially outermost bead cores, said innermost carcass ply extending from the axially outermost bead cores radially outwardly beyond the flange engaging surfaces and terminating short of the point of maximum axial width of said tire to hold the bead cores of each bead portion together and the axially outermost bead cores to said tire.
Claim 2
Dependent Claim
172 words
In an aircraft tire comprising a tread portion, a pair of sidewall portions, a pair of spaced-apart bead portions each having an axially outwardly facing flange engaging surface, a plurality of carcass plies extending circumferentially about the tire from bead portion to bead portion, and at least three inextensible bead cores disposed side-by-side in each bead portion and spaced-apart axially, the improvement comprising: at least one carcass ply wrapped around, and anchoring to said tire, each of the bead cores other than the axially outermost bead cores closest said flange engaging surfaces, the radially innermost carcass ply being wrapped around the bead cores of each bead portion and the carcass plies anchoring the bead cores other than the axially outermost bead cores, said innermost carcass ply extending from the axially outermost bead cores radially outwardly beyond the flange engaging surfaces and terminating short of the point of maximum axial width of said tire to hold the bead cores of each bead portion together and the axially outermost bead cores to said tire.
Claim 3
Dependent Claim
47 words
A tire as claimed in claim 1 wherein the diameter of the radially innermost surface of the axially outermost bead core in each bead portion is less than the diameter of the radially innermost surface of any of the other bead cores in said each bead portion.
Claim 4
Dependent Claim
52 words
A tire as claimed in claim 1 wherein each axially outermost bead core has a layer of cord reinforced material wrapped thereabout with the ends thereof extending radially outwardly beyond the flange engaging surface of the respective bead portion but terminating short of the point of maximum axial width of said tire.
Claim 5
Dependent Claim
42 words
A tire as claimed in claim 1 further having a radially inwardly facing bead seat surface and characterized by the axially outermost bead core being disposed closer to said bead seat surface than any other bead core in the respective bead portion.
Claim 6
Dependent Claim
37 words
A tire as claimed in claim 1, wherein the overall distance between the axially outermost surfaces of the axially outermost bead cores does not exceed 70 percent of the maximum axial width of said tire, when inflated.
Claim 7
Dependent Claim
23 words
A tire as claimed in claim 1, in combination with a wheel rim with outstanding annular flanges against which the bead portions seat.
References Cited (Backward Citations)
US1349902A
Cited
US1548370A
Cited
US1451645A
Cited
FR1127521A
Cited
US3111976A
Cited
US3826297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |