Patent US4090547A successfully refreshed from Google Patents.
US4090547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire for vehicles
Assignee: Lim Holding SA
•
Filing: 1977-02-23
•
Granted: 1978-05-23
•
Expires: 1997-02-23
Abstract
Abstract A tire body of elastomeric material, terminating in two beads on opposite sides of its cavity, has a sole free of reinforcing cords carrying a tread on its outer surface and a belt of elastomeric material disposed either between the tread and the body or on the inner body surface. The belt has a stress/strain ratio at 20° C and with 50% elongation which is at least 30% higher than the corresponding stress/strain ratio of the tire body.
Inventors
- 👤 Oskar Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B60; B60C; B60C5/00; B60C5/01; B60C9/00; B60C9/18; C08G2380/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/1081
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
64 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole carrying a tread, said sidewalls terminating in a pair of beads, said body being provided with reinforcing cords only in said beads; and a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body inwardly of said tread;
Claim 2
Dependent Claim
64 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole carrying a tread, said sidewalls terminating in a pair of beads, said body being provided with reinforcing cords only in said beads; and a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body inwardly of said tread;
Claim 3
Dependent Claim
64 words
1 said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
Claim 4
Dependent Claim
64 words
1 said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
Claim 5
Dependent Claim
20 words
A tire as defined in claim 1 wherein said belt has a thickness ranging between substantially 1 and 10 mm.
Claim 6
Dependent Claim
16 words
A tire as defined in claim 1 wherein said first and second elastomeric materials are polyurethanes.
Claim 7
Dependent Claim
28 words
A tire as defined in claim 1 wherein said tread consists of a third elastomeric material having a stress/strain ratio lower than that of said first elastomeric material.
Claim 8
Dependent Claim
18 words
A tire as defined in claim 4 wherein said belt is inserted between said sole and said tread.
Claim 9
Dependent Claim
17 words
A tire as defined in claim 4 wherein said belt lines the inner surface of said sole.
Claim 10
Dependent Claim
15 words
A tire as defined in claim 4 wherein said belt is embedded in said sole.
Claim 11
Dependent Claim
125 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole; a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body outwardly of said sole; and a tread of a third elastomeric material carried on said sole, said belt lying between said sole and said tread; said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
Claim 12
Dependent Claim
125 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole; a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body outwardly of said sole; and a tread of a third elastomeric material carried on said sole, said belt lying between said sole and said tread; said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
Claim 13
Dependent Claim
136 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole; a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body inwardly of said sole; and a tread of a third elastomeric material carried on the outer surface of said sole; said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%, said third elastomeric material having a stress/strain ratio lower than that of said first elastomeric material; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
Claim 14
Dependent Claim
136 words
A pneumatic vehicular tire comprising: a toroidal body of a first elastomeric material with sidewalls integrally interconnected by a sole; a substantially cylindrically curved belt of a second elastomeric material extending along the periphery of said body inwardly of said sole; and a tread of a third elastomeric material carried on the outer surface of said sole; said second elastomeric material having a stress/strain ratio, at 20° C and with 50% elongation, exceeding the corresponding stress/strain ratio of said first elastomeric material by at least 30%, said third elastomeric material having a stress/strain ratio lower than that of said first elastomeric material; said stress/strain ratio of said first elastomeric material ranging between substantially 30 and 135 kg/cm 2 , said stress/strain ratio of said second elastomeric material ranging between substantially 120 and 400 kg/cm 2 .
References Cited (Backward Citations)
US3192984A
Cited
US3537500A
Cited
US3759306A
Cited
US3782440A
Cited
US3902542A
Cited
US3916968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |