Patent US696251A successfully refreshed from Google Patents.
Patent US4850412A successfully refreshed from Google Patents.
US4850412A
Expired / Lapsed
US
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Radial tires containing polyamide monofilament
Assignee: EIDP Inc
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Filing: 1987-10-13
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Granted: 1989-07-25
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Expires: 2007-10-13
Abstract
Abstract A pneumatic radial tire, wherein each carcass ply contains a rubberized layer of load bearing polyamide monofilaments.
Inventors
- 👤 Dipak Gupta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:52
CPC Classifications
B; B60; B60C; B60C1/00; B60C9/00; B60C9/02; B60C9/04; B60C9/08; B60C9/0042; B60C9/0064; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10855
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
107 words
A pneumatic radial tire comprising at least one pair of bead portions and at least one carcass ply wrapped around said bead portions wherein each carcass ply comprises a rubberized layer of load bearing polyamide monofilaments wherein the polyamide monofilament is characterized by a denier of greater than 100, and a tenacity of greater than 7.0 g./den, said polyamide monofilaments being the primary load bearing reinforcement in the carcass of said tire, said tire further comprising at least one belt ply containing reinforcing cords which lie at an angle of about 10 to about 30 degrees with respect to the circumferential direction of travel of the tire.
Claim 2
Dependent Claim
107 words
A pneumatic radial tire comprising at least one pair of bead portions and at least one carcass ply wrapped around said bead portions wherein each carcass ply comprises a rubberized layer of load bearing polyamide monofilaments wherein the polyamide monofilament is characterized by a denier of greater than 100, and a tenacity of greater than 7.0 g./den, said polyamide monofilaments being the primary load bearing reinforcement in the carcass of said tire, said tire further comprising at least one belt ply containing reinforcing cords which lie at an angle of about 10 to about 30 degrees with respect to the circumferential direction of travel of the tire.
Claim 3
Dependent Claim
14 words
The tire of claim 1 wherein the tenacity of the monofilament is 8-14 g/den.
Claim 4
Dependent Claim
13 words
The tire of claim 1 wherein the denier of the monofilament is 1,000-10,000.
Claim 5
Dependent Claim
13 words
The tire of claim 2 wherein the denier of the monofilament is 2,000-5,000.
Claim 6
Dependent Claim
19 words
The tire of claim 1 wherein the carcass polyamide monofilament is further characterized by being of an obround shape.
Claim 7
Dependent Claim
16 words
The tire of claim 5 wherein the monofilament is at least 80 mole % 6,6 nylon.
Claim 8
Dependent Claim
13 words
The tire of claim 1 wherein said tire is a passenger car tire.
Claim 9
Dependent Claim
11 words
The tire of claim 1 wherein said monofilaments are substantially untwisted.
Claim 10
Dependent Claim
13 words
The tire of claim 1 wherein said tire is a light truck tire.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |