Patent US2166420A successfully refreshed from Google Patents.
EP0200055A2
Expired / Lapsed
EP
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Tire band structure
Assignee: Bridgestone Firestone Inc
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Filing: 1986-04-11
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Granted: —
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Expires: 2006-04-11
Abstract
Abstract A breaker structure for a pneumatic tire comprised of a homogenous band comprised of a material having a modulus of between 200 and 10,000 megapascals and having a thickness of between 0.05 inches and .35 inches wherein said homogenous bands is reinforced with a cord material disposed circumferentially about said tire.
Inventors
- 👤 Georg G.A. Bohm
- 👤 Charles M. Roland, Jr.
- 👤 Steven E. Schonfeld
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 10:25
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/20; B60C9/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A pneumatic tire having a road-engaging tread surface and sidewalls attaching the edges of said tread surface to annular beads, said tire having a band comprised of a matrix material and circumferential reinforcing cords located under said tread surface, said circumferentially extending cords having a volume fraction of between and in relation to the matrix, said matrix having a material with a tensile modulus of between 200 and 10,000 megapascals at 5% elongation and said matrix having a thickness between .05 and .35" such that the pneumatic tire has a cornering coefficient of at least 0.15 and a circumferential flexural rigidity of less than 650 in-lb.
Claim 2
Dependent Claim
106 words
A pneumatic tire having a road-engaging tread surface and sidewalls attaching the edges of said tread surface to annular beads, said tire having a band comprised of a matrix material and circumferential reinforcing cords located under said tread surface, said circumferentially extending cords having a volume fraction of between and in relation to the matrix, said matrix having a material with a tensile modulus of between 200 and 10,000 megapascals at 5% elongation and said matrix having a thickness between .05 and .35" such that the pneumatic tire has a cornering coefficient of at least 0.15 and a circumferential flexural rigidity of less than 650 in-lb.
Claim 3
Dependent Claim
68 words
A pneumatic tire comprising: a) a carcass; b) a carcass reinforcement reinforcing said carcass; c) bead wires anchoring opposite ends of said carcass reinforcement; d) a tread; and e) a tread reinforcing member annular in shape and disposed between said carcass and said tread wherein said tread reinforcing member is comprised of a matrix having a tensile modulus of at least 200 MPa but less than 10,000 MPa.
Claim 4
Dependent Claim
68 words
A pneumatic tire comprising: a) a carcass; b) a carcass reinforcement reinforcing said carcass; c) bead wires anchoring opposite ends of said carcass reinforcement; d) a tread; and e) a tread reinforcing member annular in shape and disposed between said carcass and said tread wherein said tread reinforcing member is comprised of a matrix having a tensile modulus of at least 200 MPa but less than 10,000 MPa.
Claim 5
Dependent Claim
37 words
An improved breaker structure comprising: a) an annular member comprised of a material having a tensile modulus of at least 200 MPa but less than 10,000 MPa; and b) circumferential reinforcing members affixed to said annular member.
Claim 6
Dependent Claim
37 words
An improved breaker structure comprising: a) an annular member comprised of a material having a tensile modulus of at least 200 MPa but less than 10,000 MPa; and b) circumferential reinforcing members affixed to said annular member.
Claim 7
Dependent Claim
17 words
The breaker structure of claim 3 wherein said breaker is manufactured by coextrusion processing or injection molding.
Claim 8
Dependent Claim
19 words
The breaker structure of claim 3 wherein said breaker is manufactured by liquid casting or reaction injection molding techniques.
References Cited (Backward Citations)
No citation records indexed.
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