Patent US5323829A successfully refreshed from Google Patents.
US5323829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire with carbon fiber reinforcement
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1992-12-28
•
Granted: 1994-06-28
•
Expires: 2012-12-28
Abstract
Abstract A pneumatic tire with carbon fiber cord reinforcement wherein the carbon fiber cords have a round cross sectional shape and a twist per inch (TPI) of 1.2 to 1.6 turns per inch (TPI) is provided. Preferably, the carbon fiber cords are coated with an RFL or epoxy/RFL adhesive. It is also preferred that carbon fiber cords having an S twist and carbon fiber cords having a Z twist be used in the same reinforcing plies in the tire. Especially preferred is the incorporation of carbon fiber cords in a folded belt.
Inventors
- 👤 Joseph K. Hubbell
- 👤 Perry W. Bell
- 👤 David L. Bair
- 👤 Surendra K. Chawla
- 👤 Mahmoud Assaad
- 👤 Warren L. Croyle
- 👤 Joanne E. Shaw
- 👤 Donald G. Vera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:37
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0042; B60C15/00; B60C15/06; B60C9/18; B60C9/26; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10819; Y10T152/10828; Y10T152/10855; Y10T152/10864
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
149 words
A pneumatic tire comprising at least one pair of beads, reinforced carcass plies wrapped around said pair of beads, a folded belt structure and tread rubber disposed over said carcass plies, and sidewalls disposed between said beads and said tread, wherein said folded belt structure comprises at least one belt ply having substantially parallel reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6 and wherein said folded belt structure comprises a first carbon fiber cord reinforced belt ply having a width exceeding a tread width of a completed tire, and at least one additional belt ply having a width substantially equal to the tread width of the completed tire, wherein the sides of said first belt ply are folded over the edges of said at least one additional belt ply enveloping said at least one additional belt ply.
Claim 2
Dependent Claim
149 words
A pneumatic tire comprising at least one pair of beads, reinforced carcass plies wrapped around said pair of beads, a folded belt structure and tread rubber disposed over said carcass plies, and sidewalls disposed between said beads and said tread, wherein said folded belt structure comprises at least one belt ply having substantially parallel reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6 and wherein said folded belt structure comprises a first carbon fiber cord reinforced belt ply having a width exceeding a tread width of a completed tire, and at least one additional belt ply having a width substantially equal to the tread width of the completed tire, wherein the sides of said first belt ply are folded over the edges of said at least one additional belt ply enveloping said at least one additional belt ply.
Claim 3
Dependent Claim
30 words
The pneumatic tire of claim 1 wherein said first belt ply is reinforced with resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords, and said additional belt ply is reinforced with steel cord.
Claim 4
Dependent Claim
36 words
The pneumatic tire of claim 1 wherein said first belt ply is reinforced with resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords, and said at least one additional belt ply is reinforced with RFL treated carbon fiber cords.
Claim 5
Dependent Claim
18 words
The pneumatic tire of claim 1 in which said carbon fiber cords have a round cross sectional shape.
Claim 6
Dependent Claim
38 words
The pneumatic tire of claim 1 in which said carbon fiber cord reinforced belt ply contains carbon fiber cords having an S twist and carbon fiber cords having a Z twist in the ratio of 5:1 to 1:5.
Claim 7
Dependent Claim
16 words
The pneumatic tire of claim 1 which further comprises at least one overlay of nylon fabric.
Claim 8
Dependent Claim
37 words
The pneumatic tire of claim 1 wherein said sidewall portion comprises a lower sidewall containing reinforcing members consisting essentially of resorcinol formaldehyde latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6.
Claim 9
Dependent Claim
229 words
A pneumatic tire comprising at least one pair of beads, reinforcement plies wrapped around said at least one pair of beads, a folded belt structure disposed over said reinforcement plies in a crown area of said tire, a tread disposed over said folded belt structure, and a sidewall portion between said beads and said tread, wherein; (a) said reinforcement plies have substantially parallel longitudinal reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a round cross sectional shape and a twist per inch of 1.2 to 1.6, (b) said belt structure comprises a belt ply having substantially parallel longitudinal reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6, and (c) said sidewall portion comprises a lower sidewall and an upper sidewall and wherein said lower sidewall portion contains reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6 and wherein said folded belt structure comprises a first carbon fiber cord reinforced belt ply having a width exceeding a tread width of a completed tire, and at least one additional belt ply having a width substantially equal to the tread width of the completed tire, wherein the sides of said first belt ply are folded over the edges of said at least one additional belt ply.
Claim 10
Dependent Claim
229 words
A pneumatic tire comprising at least one pair of beads, reinforcement plies wrapped around said at least one pair of beads, a folded belt structure disposed over said reinforcement plies in a crown area of said tire, a tread disposed over said folded belt structure, and a sidewall portion between said beads and said tread, wherein; (a) said reinforcement plies have substantially parallel longitudinal reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a round cross sectional shape and a twist per inch of 1.2 to 1.6, (b) said belt structure comprises a belt ply having substantially parallel longitudinal reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6, and (c) said sidewall portion comprises a lower sidewall and an upper sidewall and wherein said lower sidewall portion contains reinforcing members consisting essentially of resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords having a twist per inch of 1.2 to 1.6 and wherein said folded belt structure comprises a first carbon fiber cord reinforced belt ply having a width exceeding a tread width of a completed tire, and at least one additional belt ply having a width substantially equal to the tread width of the completed tire, wherein the sides of said first belt ply are folded over the edges of said at least one additional belt ply.
Claim 11
Dependent Claim
38 words
The pneumatic tire of claim 8 in which said carbon fiber cord reinforced belt ply contains carbon fiber cords having an S twist and carbon fiber cords having a Z twist in a ratio of 5:1 to 1:5.
Claim 12
Dependent Claim
33 words
The pneumatic tire of claim 8 wherein said first belt ply is reinforced with resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords, and said at least one additional belt ply is reinforced with steel cord.
Claim 13
Dependent Claim
37 words
The pneumatic tire of claim 8 wherein said first belt ply is reinforced with resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords and said at least one additional belt ply is reinforced with resorcinol-formaldehyde-latex (RFL) treated carbon fiber cords.
Claim 14
Dependent Claim
16 words
The pneumatic tire of claim 8 which further comprises at least one overlay of nylon fabric.
References Cited (Backward Citations)
FR505019A
Cited
FR568042A
Cited
US3648452A
Cited
US3778396A
Cited
US3807476A
Cited
GB1385704A
Cited
JPS50102678A
Cited
US4044540A
Cited
US4335771A
Cited
DE3226678A1
Cited
US4644988A
Cited
JPS60185603A
Cited
GB2160158A
Cited
JPS60255502A
Cited
US4934431A
Cited
JPS616006A
Cited
JPS6181803A
Cited
JPS6181804A
Cited
US4711286A
Cited
EP0237599A1
Cited
JPS6194803A
Cited
JPS6194802A
Cited
JPS61222803A
Cited
JPS61222805A
Cited
JPS61222804A
Cited
JPS61222802A
Cited
US4735249A
Cited
JPS61282105A
Cited
US4848431A
Cited
JPS6226103A
Cited
US4722381A
Cited
JPS63325A
Cited
JPS6416404A
Cited
US5029627A
Cited
EP0353621A2
Cited
US5070921A
Cited
US5048584A
Cited
US5065803A
Cited
JPH0431109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-27 | 1997-12-27 | 1998-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-27 | 2001-12-27 | 2002-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-27 | 2005-12-27 | 2006-06-28 | $7700.00 | Window Closed / Lapsed |