US4360050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure low speed tire
Assignee: Sumitomo Rubber Industries Ltd
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Filing: 1980-05-07
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Granted: 1982-11-23
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Expires: 2000-05-07
Abstract
Abstract A low pressure tire, which is effectively used with a relatively small load in all terrain vehicles suited to be driven on various uneven grounds such as bad roads, tillage and sandy soil, comprising crown and side portions which consist of a carcass ply formed of synthetic fibre monofilaments formed in a reed-screen pattern and a rubber layer.
Inventors
- 👤 Eiji Nakasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:10
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/02; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
A low pressure, low speed tire for leisure vehicles utilizing operating pressures not exceeding three pounds per square inch and having improved mechanical strength and operational stability consisting essentially of a crown portion and side wall portions, said portions having a carcass-ply containing at least two sets of synthetic fibre monofilaments with one set disposed at approximately 90° relative to the other set and forming a pattern, one set of monofilaments being disposed at angles of 75 to 90 degrees with respect to the equator plane of the tire and a rubber layer overlying said carcass-ply.
Claim 2
Dependent Claim
96 words
A low pressure, low speed tire for leisure vehicles utilizing operating pressures not exceeding three pounds per square inch and having improved mechanical strength and operational stability consisting essentially of a crown portion and side wall portions, said portions having a carcass-ply containing at least two sets of synthetic fibre monofilaments with one set disposed at approximately 90° relative to the other set and forming a pattern, one set of monofilaments being disposed at angles of 75 to 90 degrees with respect to the equator plane of the tire and a rubber layer overlying said carcass-ply.
Claim 3
Dependent Claim
39 words
A low pressure, low speed tire for leisure vehicles according to claim 1 wherein said monofilaments are in the range of 500 to 1000 deniers with each filament twisted 10 to 40 times per 5 centimeters of length thereof.
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) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |