Patent US3566948A successfully refreshed from Google Patents.
US3566948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Studded vehicle tire
Assignee: Continental AG
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Filing: 1969-02-28
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Granted: 1971-03-02
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Expires: 1989-02-28
Abstract
Abstract A pneumatic vehicle tire having a tread strip and a plurality of groups of skid protective studs of hard metal respectively arranged in said tread strip along different circumferential zones and protruding outwardly from said tread strip, said circumferential zones when viewing the tire in transverse direction thereof being located one behind the other, the wear resistance of the studs of at least one group being different from the wear resistance of the studs of at least another one of said groups.
Inventors
- 👤 Hans Menell
- 👤 Johannes Kosanke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:41
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/03; B60C11/0306; B60C11/0311; B60C11/14; B60C11/16; B60C11/1625
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A pneumatic vehicle tire having a tread strip and a plurality of groups of skid protective studs of hard metal respectively arranged in said tread strip along different circumferential zones and protruding outwardly from said tread strip, said circumferential zones when viewing the tire in transverse direction thereof being located one behind the other, the improvement therewith comprising the wear resistance of the studs of at least one group being different characteristically from the wear resistance of the studs of at least another one of said groups.
Claim 2
Dependent Claim
87 words
A pneumatic vehicle tire having a tread strip and a plurality of groups of skid protective studs of hard metal respectively arranged in said tread strip along different circumferential zones and protruding outwardly from said tread strip, said circumferential zones when viewing the tire in transverse direction thereof being located one behind the other, the improvement therewith comprising the wear resistance of the studs of at least one group being different characteristically from the wear resistance of the studs of at least another one of said groups.
Claim 3
Dependent Claim
66 words
An improvement in a tire according to claim 1, which includes groups of skid protective studs near the marginal tread strip areas and also includes at least one group of skid protective studs transversely between the groups of studs near the marginal tread strip areas, the studs of the groups near said marginal areas having more wear resistance than the studs between said last mentioned groups.
Claim 4
Dependent Claim
44 words
An improvement in a tire according to claim 2, in which the studs of the greater wear resistance have a Vickers hardness of from 1300 to 1400 particularly whereas the studs of less wear resistance have a Vickers hardness of from 1200 to 1300.
Claim 5
Dependent Claim
32 words
An improvement in a tire according to claim 2, in which the difference in hardness between the studs of greater and lower wear resistance amounts to from 80 to 120 Vickers units.
Claim 6
Dependent Claim
24 words
An improvement in a tire according to claim 1, in which the studs of different wear resistant material always have approximately the same diameter.
Claim 7
Dependent Claim
30 words
An improvement in a tire according to claim 1, in which the studs of one group differ in transverse cross section from the studs of an adjacent group of studs.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |