Patent US4436128A successfully refreshed from Google Patents.
US4436128A
Expired / Lapsed
US
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Tires for wheels
Assignee: Individual
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Filing: 1982-07-29
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Granted: 1984-03-13
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Expires: 2002-07-29
Abstract
Abstract A tubeless tire for a bicycle wheel has lips (5) integral with the side walls to form with the beads (3) recesses to house the wheel rim flanges (9). The tire interior is divided into equal sized compartments (12) by partitions (13). Each compartment has a vent (14) on one side only extending through a respective bead centrally between partitions, the vents of adjacent compartments being in opposite beads.
Inventors
- 👤 Simon P. Pointer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/12; B60C7/125
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A tubeless tire for a wheel comprising a tread portion, and sidewall portions terminating in bead portions to rest in the well of a wheel rim to receive the tire, lips spaced outwardly from the bead portions and integral with the sidewall portions to overlie respective outer surfaces of the wheel rim flanges and form, with the bead portions, recesses to receive the peripheral edges of the rim flanges, a plurality of equispaced venting channels extending across each bead portion, the channels in one bead portion, and a plurality of equispaced partitions extending transversely between the side walls and radially inwardly from the inner surface of the tread portion to divide the tyre interior into a series of empty cells each of which extends between the side walls and are entirely devoid of solids within the sidewalls and tread portion.
Claim 2
Dependent Claim
140 words
A tubeless tire for a wheel comprising a tread portion, and sidewall portions terminating in bead portions to rest in the well of a wheel rim to receive the tire, lips spaced outwardly from the bead portions and integral with the sidewall portions to overlie respective outer surfaces of the wheel rim flanges and form, with the bead portions, recesses to receive the peripheral edges of the rim flanges, a plurality of equispaced venting channels extending across each bead portion, the channels in one bead portion, and a plurality of equispaced partitions extending transversely between the side walls and radially inwardly from the inner surface of the tread portion to divide the tyre interior into a series of empty cells each of which extends between the side walls and are entirely devoid of solids within the sidewalls and tread portion.
Claim 3
Dependent Claim
37 words
A tubeless tire according to claim 1, wherein the channels in each side wall are spaced successively centrally of alternate cells in such a manner that each cell is provided with a vent on one side only.
Claim 4
Dependent Claim
17 words
A tubeless tire according to claim 1 or 2 which is integrally moulded of a plastic material.
Claim 5
Dependent Claim
13 words
A tubeless tire according to claim 3 wherein the plastic material is polyurethane.
Claim 6
Dependent Claim
22 words
A tubeless tire according to claim 1 wherein the tire has a generally arcuate cross-sectional outer peripheral upon which tread is located.
References Cited (Backward Citations)
US4345633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |