Pneumatic tire
AssigneeE. I. Du Pont de Nemours and Company
InventorsMARK ALLAN LAMONTIA, William Herbert Coulter, Monty C. McNeil, Harish Viswanathan
Life of this patent
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Abstract
This invention pertains to a tire comprising at least one carcass ply and at least one breaker ply, the carcass and breaker plies each comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein the carcass ply turn-ups terminate under the at least one breaker ply. The invention further pertains to a tire comprising a plurality of apex components and carcass ply turn-ups that terminate within the apex region of the tire. The invention also discloses a tire wherein the carcass ply turn-ups terminate in the upper sidewall region of the tire and ply spacers are located between ply-turn-ups.
Claims11
A tire comprising at least one carcass ply and at least one breaker ply, the carcass and breaker plies each comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein the carcass ply has turn-ups that terminate under the at least one breaker ply.
A tire comprising a bead, a first, second and third carcass ply, each ply comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein turn-ups of the first and second carcass plies terminate within the tire apex region and wherein
- (i) a first apex component is positioned between the bead, the second carcass ply and the second carcass ply turn-up,
- (ii) a second apex component is positioned between the second carcass ply turn-up, the second carcass ply and the first carcass ply turn-up,
- (iii) a third apex component is positioned between the first carcass ply turn-up, the second carcass ply and the third carcass ply, and
- (iv) the first, second and third apex components comprise an elastomeric compound having a modulus in the range of from 3 to 50 MPa.
A tire comprising an apex, a first, second and third carcass ply, each carcass ply comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein turn-ups of the first and second carcass plies terminate in an upper sidewall region of the tire and wherein a ply separator is positioned between the second ply turn-up and the second ply extending up to or beyond the end of the second ply turn-up, the ply separator comprising an elastomeric compound having a modulus of no greater than 4 MPa.
A tire comprising an apex, a first, second and third carcass ply, each carcass ply each ply comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein turn-ups of the first and second carcass plies terminate in an upper sidewall region of the tire and wherein a ply separator is positioned between the first ply turn-up and the third ply extending up to or beyond the end of the first ply turn-up, the ply separator comprising an elastomeric compound having a modulus of no greater than 4 MPa.
A tire comprising an apex, a first, second and third carcass ply, each carcass ply each ply comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein turn-ups of the first and second carcass plies terminate in an upper sidewall region of the tire and wherein a ply separator is positioned between the second ply and the first ply turn-up extending up to or beyond the first ply turn-up the ply separator comprising an elastomeric compound having a modulus of no greater than 4 MPa.
A tire comprising an apex, a first, second and third carcass ply, each carcass ply comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein turn-ups of the first and second carcass plies terminate in an upper sidewall region of the tire wherein a first ply separator is positioned between the second ply turn-up and the second ply and extends up to or beyond the end of the second ply turn-up, a second ply separator is positioned between the first ply turn-up and the third ply and extends up to or beyond the end of the first ply turn-up and a third ply separator is positioned between the second ply and the first ply turn-up and extends up to or beyond the first ply turn-up and
- Wherein all of the ply separators comprise an elastomeric compound having a modulus of no greater than 4 MPa.
A tire comprising a bead, a first carcass ply and a first outer ply, wherein a woven fabric layer of continuous filament yarns is positioned above the bead and between a first carcass ply turn-up and the first outer carcass ply.
Dependencies are inferred from the claim text.