US4776377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for locking the beads of a tire
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1987-03-16
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Granted: 1988-10-11
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Expires: 2007-03-16
Abstract
Abstract A device for locking the beads of a tire against flanges of a multi-piece rim comprises two main parts. The first part having an approximately cylindrical shape is formed essentially of a flexible material. It is strapped by a second part which is nonextensible radially.
Inventors
- 👤 Pierre Susini
- 👤 Philippe Bouchereau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
B; B60; B60B; B60B21/00; B60B21/12; B60C; B60C15/00; B60C15/02; B60C15/028
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A device for locking beads of a tire against flanges of a multi-piece rim which comprises (a) a first part having an approximately cylindrical shape with axial ends engageable axially outward against the beads for retention of the beads against the flanges and being formed essentially of a flexible material of a Shore A hardness of less than 85, the first part having a transverse slit, and (b) a second part (mountable on) in assembled condition extending around the first part, which second part straps the first part onto the rim and which has an axial width when in mounted position less than the maximum axial width of the first part and which has a modulus of elasticity greater than 45, 000 mega Pascals, the second part being nonextensible radially, whereby in assembling the two parts the firt slit part is inserted within the second part.
Claim 2
Independent Claim
146 words
A device for locking beads of a tire against flanges of a multi-piece rim which comprises (a) a first part having an approximately cylindrical shape with axial ends engageable axially outward against the beads for retention of the beads against the flanges and being formed essentially of a flexible material of a Shore A hardness of less than 85, the first part having a transverse slit, and (b) a second part (mountable on) in assembled condition extending around the first part, which second part straps the first part onto the rim and which has an axial width when in mounted position less than the maximum axial width of the first part and which has a modulus of elasticity greater than 45, 000 mega Pascals, the second part being nonextensible radially, whereby in assembling the two parts the firt slit part is inserted within the second part.
Claim 3
Dependent Claim
26 words
A device according to claim 1, wherein the first part has a meridian cross section of U shape defining a recess to accommodate the second part.
Claim 4
Dependent Claim
26 words
A device according to claim 1, wherein the first part is formed essentially of a flexible material of a Shore A hardness of less than 70.
Claim 5
Dependent Claim
27 words
A device according to claim 3, wherein the first part is formed essentially of a flexible material of a Shore A hardness of between 50 and 65.
Claim 6
Dependent Claim
19 words
A device according to claim 1, wherein the second part has a modulus of elasticity of 190,000 mega Pascals.
References Cited (Backward Citations)
FR1382994A
Cited
NL6507769A
Cited
US3907018A
Cited
US4334565A
Cited
US4391317A
Cited
US4558728A
Cited
US4440209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-11 | 1992-04-11 | 1992-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-11 | 1996-04-11 | 1996-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-11 | 2000-04-11 | 2000-10-11 | $7700.00 | Window Closed / Lapsed |