US3841373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Uniroyal Inc
•
Filing: 1973-03-08
•
Granted: 1974-10-15
•
Expires: 1993-03-08
Abstract
Abstract A pneumatic tire having an annular rib integral with the sidewall and displaced inwardly from the shoulder of the tire. The region of maximum lateral projection of the rib is displaced radially outwardly from region of maximum width, exclusive of the rib, of the tire under load and extends outwardly of the tire at least as far as the region of maximum width of the tire under load. The annular rib provides sidewall protection without contributing to heat build-up in the shoulder region.
Inventors
- 👤 A Gilreath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:01
CPC Classifications
B; B60; B60C; B60C13/00; B60C13/02; B60C13/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A pneumatic tire comprising sidewalls, shoulders and a tread, at least one sidewall having an annular rib integral therewith projecting laterally from the sidewall and having its radially outer surface displaced radially inwardly from the shoulder of the tire under load and having its region of maximum lateral projection displaced radially outwardly from the region of maximum width, exclusive of said rib, of the tire under load, said region of maximum lateral projection of said rib extending outwardly of the tire at least as far as the region of maximum width, exclusive of said rib, of the tire under load, and said radially outer surface of said annular rib being inclined with respect to the axis of the tire at an angle in the range of ten to fifty degrees when the tire is under load.
Claim 2
Dependent Claim
136 words
A pneumatic tire comprising sidewalls, shoulders and a tread, at least one sidewall having an annular rib integral therewith projecting laterally from the sidewall and having its radially outer surface displaced radially inwardly from the shoulder of the tire under load and having its region of maximum lateral projection displaced radially outwardly from the region of maximum width, exclusive of said rib, of the tire under load, said region of maximum lateral projection of said rib extending outwardly of the tire at least as far as the region of maximum width, exclusive of said rib, of the tire under load, and said radially outer surface of said annular rib being inclined with respect to the axis of the tire at an angle in the range of ten to fifty degrees when the tire is under load.
Claim 3
Dependent Claim
40 words
A pneumatic tire in accordance with claim 1 in which said tread has ribs and grooves extending transversely with respect to the circumference of the tire and extending over said shoulders approximately to said radially outer surface of said rib.
Claim 4
Dependent Claim
16 words
A pneumatic tire in accordance with claim 1 in which said angle is approximately thirty degrees.
Claim 5
Dependent Claim
54 words
A pneumatic tire in accordance with claim 1 in which said region of maximum lateral projection of said rib extends outwardly of the tire, when loaded, beyond the region of maximum width of the tire, when loaded, exclusive of said rib, by an amount in the range extending to a maximum of one-half inch.
Claim 6
Dependent Claim
16 words
A pneumatic tire in accordance with claim 4 in which said amount is approximately one-quarter inch.
Claim 7
Dependent Claim
55 words
A pneumatic tire in accordance with claim 1 in which said region of maximum lateral projection of said rib is spaced radially from the radially outermost surface of said tread when the tire is loaded by a distance in the range of twenty to forty-five percent of the cross-sectional height of the tire when loaded.
Claim 8
Dependent Claim
25 words
A pneumatic tire in accordance with claim 6 in which said distance is approximately twenty-eight percent of the cross-sectional height of the tire when loaded.
Claim 9
Dependent Claim
16 words
A tire in accordance with claim 1 in which said rib contains randomly dispersed steel filaments.
References Cited (Backward Citations)
US2113527A
Cited
US2199466A
Cited
US2572259A
Cited
US2685904A
Cited
US2869610A
Cited
US2865423A
Cited
US3457981A
Cited
US3467159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |