US3765468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asymmetrical tire casing
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1971-02-23
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Granted: 1973-10-16
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Expires: 1991-02-23
Abstract
Abstract A tire casing has a crown the structure and thickness of which are symmetrical with respect to a bisecting surface normal thereto. However, the crown is rendered asymmetrical with respect to the median plane of the tire by forming therewith an angle less than 90*.
Inventors
- 👤 H Verdier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/20; B29; B29D; B29D30/00; Y; Y10; Y10S; Y10S152/00; Y10S152/904; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10504; Y10T152/10855; Y10T152/10864
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A tire casing comprising a pair of beads each having a bead base, a pair of sidewalls respectively connected to said beads, and a crown extending between said sidewalls, said beads and sidewalls being symmetrical with respect to the median plane of said tire, said bead bases being equally spaced from the axis of the tire, and said crown (a) comprising a tread, a crown reinforcement and a portion of a carcass, each being symmetrical with respect to a bisecting surface normal to said crown, (b) having a thickness symmetrical with respect to said bisecting surface and (c) being rendered asymmetrical with respect to the median plane of said tire by forming theRewith an angle less than 90*.
Claim 2
Dependent Claim
118 words
A tire casing comprising a pair of beads each having a bead base, a pair of sidewalls respectively connected to said beads, and a crown extending between said sidewalls, said beads and sidewalls being symmetrical with respect to the median plane of said tire, said bead bases being equally spaced from the axis of the tire, and said crown (a) comprising a tread, a crown reinforcement and a portion of a carcass, each being symmetrical with respect to a bisecting surface normal to said crown, (b) having a thickness symmetrical with respect to said bisecting surface and (c) being rendered asymmetrical with respect to the median plane of said tire by forming theRewith an angle less than 90*.
Claim 3
Dependent Claim
24 words
A tire casing according to claim 1 wherein said angle differs from 90* by a value Alpha within the range of 0*15'' to 3*.
Claim 4
Dependent Claim
24 words
A tire casing according to claim 1 wherein said angle differs from 90* by a value Alpha within the range of 0*45'' to 2*.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |