US4034791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire with reinforcing belt
Assignee: PNEU UNIROYAL ENGLEBERT
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Filing: 1976-06-09
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Granted: 1977-07-12
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Expires: 1996-06-09
Abstract
Abstract The pneumatic tire incorporates a reinforcement belt comprising two superposed median plies of metallic material and two laterally disposed marginal plies of nonmetallic material. The marginal plies are folded to form superposed flaps, with the corresponding flaps of each marginal ply being substantially aligned. In all embodiments of the invention at least one pair of corresponding opposite, laterally disposed flaps align with one of the median plies. In at least one embodiment of the invention the second pair of opposite, laterally disposed flaps align with the second median ply. In other embodiments of the invention the second pair of opposite, laterally disposed flaps overlap the terminal ends of the second median ply. And in still further embodiments of the invention the second pair of opposite, laterally disposed flaps are positioned radially outward or radially inward of the second median ply. In all embodiments of the invention there are at least two and at the most three layers of ply material at various points along the crosswise width of the reinforcing belt.
Inventors
- 👤 Henri J. Mirtain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:43
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/26
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
287 words
A pneumatic tire comprising an annular carcass having a radially outerlying crown portion, a tread constituting an annular cover surrounding the crown portion of said carcass, and an annular reinforcement belt interpositioned between the crown portion of said carcass and said tread, said reinforcement belt comprising, in cross-section, a pair of opposite, laterally disposed, crosswise spaced, first and second plies of a first cord material, each of said first and second plies being folded to form two respective flap portions having ends directed toward an equatorial plane of the tire and respective folded margins directed away from said equatorial plane, one of the flaps of each said first and second folded ply confronting at least a portion of the other said respective flap, a first ply of second cord material having opposite terminal ends being disposed between homologous ends of one of the pairs of corresponding opposite, laterally disposed flap portions such that said one pair of opposite, laterally disposed flap portions extends laterally beyond corresponding terminal ends of said first ply of second cord material in substantial alignment with said corresponding opposite terminal ends, and a second ply of said second cord material having opposite terminal ends, said second ply of second cord material being disposed adjacent said first ply of second cord material such that said second ply of second cord material does not extend laterally beyond the folded margins or between the confronting flap portions of the first and second folded plies, whereby said first and second plies of the first cord material are positioned at the marginal ends of said reinforcement belt and said first and second plies of the second cord material are positioned at the median portion of the reinforcement belt.
Claim 2
Dependent Claim
287 words
A pneumatic tire comprising an annular carcass having a radially outerlying crown portion, a tread constituting an annular cover surrounding the crown portion of said carcass, and an annular reinforcement belt interpositioned between the crown portion of said carcass and said tread, said reinforcement belt comprising, in cross-section, a pair of opposite, laterally disposed, crosswise spaced, first and second plies of a first cord material, each of said first and second plies being folded to form two respective flap portions having ends directed toward an equatorial plane of the tire and respective folded margins directed away from said equatorial plane, one of the flaps of each said first and second folded ply confronting at least a portion of the other said respective flap, a first ply of second cord material having opposite terminal ends being disposed between homologous ends of one of the pairs of corresponding opposite, laterally disposed flap portions such that said one pair of opposite, laterally disposed flap portions extends laterally beyond corresponding terminal ends of said first ply of second cord material in substantial alignment with said corresponding opposite terminal ends, and a second ply of said second cord material having opposite terminal ends, said second ply of second cord material being disposed adjacent said first ply of second cord material such that said second ply of second cord material does not extend laterally beyond the folded margins or between the confronting flap portions of the first and second folded plies, whereby said first and second plies of the first cord material are positioned at the marginal ends of said reinforcement belt and said first and second plies of the second cord material are positioned at the median portion of the reinforcement belt.
Claim 3
Dependent Claim
25 words
A pneumatic tire as claimed in claim 1 wherein said first cord material comprises textile cords and said second cord material comprises metallic wire cords.
Claim 4
Dependent Claim
30 words
A pneumatic tire as claimed in claim 2 wherein said textile cord material is formed of a synthetic substance on an aromatic polyamide base identified by the trade name Kevlar.
Claim 5
Dependent Claim
23 words
A pneumatic tire as claimed in claim 1 wherein said reinforcement belt is symmetrical with respect to the equatorial plane of said tire.
Claim 6
Dependent Claim
26 words
A pneumatic tire as claimed in claim 1 wherein homologous ends of the first and second pairs of corresponding opposite, laterally disposed flaps are crosswise aligned.
Claim 7
Dependent Claim
31 words
A pneumatic tire as claimed in claim 1 wherein said first pair of corresponding opposite, laterally disposed flap portions constitute substantially contiguous extension of said first ply of second cord material.
Claim 8
Dependent Claim
26 words
A pneumatic tire as claimed in claim 1 wherein the crosswise width of said reinforcement belt has a maximum width of 125% of the tread width.
Claim 9
Dependent Claim
53 words
A pneumatic tire as claimed in claim 7 wherein the second ply of second cord material is of a different crosswise extent than the first ply of second cord material, the narrower of said plies of second cord material ranging in size from 50% to 90% of the crosswise width of said tread.
Claim 10
Dependent Claim
39 words
A pneumatic tire as claimed in claim 8 wherein the wider of said plies of second cord material ranges in size from a crosswise extent less than said tread width to a crosswise extent greater than said tread width.
Claim 11
Dependent Claim
37 words
A pneumatic tire as claimed in claim 1 wherein said second ply of second cord material is of lesser crosswise extent than the crosswise distance from one of the folded margins to the other said folded margin.
Claim 12
Dependent Claim
74 words
A pneumatic tire as claimed in claim 1 wherein said second ply of second cord material is disposed between homologous ends of the other pair of corresponding opposite, laterally disposed flap portions such that said other pair of corresponding opposite, laterally disposed flap portions extend crosswise beyond corresponding terminal ends of said second ply of second cord material in substantial alignment with the corresponding terminal ends of said second ply of second cord material.
Claim 13
Dependent Claim
31 words
A pneumatic tire as claimed in claim 11 wherein said other pair of corresponding opposite, laterally disposed flap portions constitute substantially contiguous extensions of said second ply of second cord material.
Claim 14
Dependent Claim
25 words
A pneumatic tire as claimed in claim 11 wherein the crosswise extent of the first and second plies of second cord material are substantially equivalent.
Claim 15
Dependent Claim
37 words
A pneumatic tire as claimed in claim 13 wherein the crosswise extent of said first and second plies of second cord material is within the range of 50% to 90% of the crosswise width of said tread.
Claim 16
Dependent Claim
29 words
A pneumatic tire as claimed in claim 11 wherein said frist ply of second cord material is of greater crosswise extent than the second ply of second cord material.
Claim 17
Dependent Claim
19 words
A pneumatic tire as claimed in claim 1 wherein the crosswise extent of each flap portion is substantially equivalent.
Claim 18
Dependent Claim
46 words
A pneumatic tire as claimed in claim 1 wherein the crosswise extent of each flap of the other pair of corresponding opposite, laterally disposed flap portions is greater than the crosswise extent of each flap of said one pair of corresponding opposite, laterally disposed flap portions.
Claim 19
Dependent Claim
76 words
A pneumatic tire as claimed in claim 17 wherein said second ply of second cord material is disposed between homologous free ends of the other pair of corresponding opposite, laterally disposed flap portions such that said other pair of corresponding opposite, laterally disposed flap portions extend crosswise beyond the corresponding terminal ends of said second ply of second cord material in substantial alignment with the corresponding terminal ends of said second ply of second cord material.
Claim 20
Dependent Claim
42 words
A pneumatic tire as claimed in claim 18 wherein the first ply of second cord material is of greater crosswise extent than the second ply of second cord material and is disposed radially inward of the second ply of second cord material.
Claim 21
Dependent Claim
42 words
A pneumatic tire as claimed in claim 18 wherein the first ply of second cord material is of lesser crosswise extent than the second ply of second cord material and is disposed radially inward of the second ply of second cord material.
Claim 22
Dependent Claim
34 words
A pneumatic tire as claimed in claim 17 wherein said one pair of corresponding opposite, laterally disposed flap portions is disposed radially outwardly of said other pair of corresponding opposite, laterally disposed flap portions.
Claim 23
Dependent Claim
42 words
A pneumatic tire as claimed in claim 21 wherein the second ply of second cord material is of greater crosswise extent than the first ply of second cord material and is disposed radially outward of the first ply of second cord material.
Claim 24
Dependent Claim
36 words
A pneumatic tire as claimed in claim 20 wherein the crosswise extent of each flap of the other pair of corresponding opposite, laterally disposed flap portions is approximately one-half the crosswise distance between said folded margins.
Claim 25
Dependent Claim
37 words
A pneumatic tire as claimed in claim 17 wherein each flap of said one pair of corresponding opposite, laterally disposed flap portions is disposed radially inward of said other pair of corresponding opposite, laterally disposed flap portions.
Claim 26
Dependent Claim
42 words
A pneumatic tire as claimed in claim 24 wherein the second ply of second cord material is of greater crosswise extent than the first ply of second cord material and is disposed radially inward of the first ply of second cord material.
Claim 27
Dependent Claim
35 words
A pneumatic tire as claimed in claim 17 wherein each flap of the other pair of corresponding opposite, laterally disposed flap portions overlaps the terminal ends of one of the plies of second cord material.
Claim 28
Dependent Claim
23 words
A pneumatic tire as claimed in claim 26 wherein the crosswise width of said overlap is at least 10% of the tread width.
Claim 29
Dependent Claim
85 words
A pneumatic tire as claimed in claim 17 wherein said second ply of second cord material is of greater crosswise extent than the crosswise space between homologous free ends of said other pair of corresponding opposite, laterally disposed flap portions, said other pair of corresponding opposite, laterally disposed flap portions being folded over the terminal ends of said second ply of second cord material and being substantially coplanar with said second ply of second cord material between the folded over portion and the folded margins.
Claim 30
Dependent Claim
29 words
A pneumatic tire as claimed in claim 28 wherein said second ply of second cord material is of lesser crosswise extent than said first ply of second cord material.
Claim 31
Dependent Claim
28 words
A pneumatic tire as claimed in claim 29 wherein said second ply of second cord material is disposed radially outward of said first ply of second cord material.
Claim 32
Dependent Claim
28 words
A pneumatic tire as claimed in claim 29 wherein said second ply of second cord material is disposed radially inward of said first ply of second cord material.
Claim 33
Dependent Claim
37 words
A pneumatic tire as claimed in claim 31 wherein the crosswise extent of each flap of said other pair of corresponding opposite, laterally disposed flap portions is approximately one-half the crosswise distance between said folded marginal ends.
Claim 34
Dependent Claim
30 words
The pneumatic tire as claimed in claim 32 wherein the ends of said other pair of opposite, laterally disposed flap portions form a butt joint substantially at said equatorial plane.
Claim 35
Dependent Claim
69 words
A pneumatic tire as claimed in claim 16 wherein said other pair of corresponding opposite, laterally disposed flap portions extend crosswise beyond the corresponding terminal ends of said first ply of second cord material in substantial alignment with said corresponding opposite terminal ends, said seond ply of second cord material being disposed radially outward of said first and second folded plies and said first ply of second cord material.
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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |