Patents by Inventor Denis Alvarez

Denis Alvarez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8281562
    Abstract: Tire comprising a crown surmounted by a tread, a crown reinforcement, two sidewalls and two beads, a carcass reinforcement passing into the two sidewalls and anchored by means for anchoring in the two beads, said anchoring means comprising, in at least one bead, a circumferential alignment of at least one anchoring reinforcing member oriented circumferentially and cooperating with a rubber composition referred to as ‘anchoring rubber’; this tire is characterized in that this anchoring reinforcing member is a metal cable having two layers of construction M+N comprising an inner layer C1 of M wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, this anchoring cable furthermore having the following characteristics (d1, d2, p1 and p2 in mm): 2?M?4 M+3?N?M+7 0.25<d1<0.40; 0.25<d2<0.40; 3.5<p1<7<p2<14.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: October 9, 2012
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Denis Alvarez, Christian Signoret
  • Patent number: 8209949
    Abstract: Metal cable having two layers of construction 4+N comprising an inner layer C1 of 4 wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, characterized in that said cable furthermore has the following characteristics (d1, d2, p1 and p2 in mm): 0.25<d1<0.40; 0.25<d2<0.40; 3.5<p1<7<p2<14. Such a cable, of preferred construction 4+9, is in particular usable for reinforcing tires, in particular as an anchoring means for a carcass reinforcement of a tire without a solid bead wire.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: July 3, 2012
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Henri Barguet, Thibaud Pottier, Denis Alvarez, Christian Signoret
  • Publication number: 20120028044
    Abstract: Tire comprising a crown surmounted by a tread, a crown reinforcement, two sidewalls and two beads, a carcass reinforcement passing into the two sidewalls and anchored by means for anchoring in the two beads, said anchoring means comprising, in at least one bead, a circumferential alignment of at least one anchoring reinforcing member oriented circumferentially and cooperating with a rubber composition referred to as ‘anchoring rubber’; this tire is characterized in that this anchoring reinforcing member is a metal cable having two layers of construction M+N comprising an inner layer C1 of M wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, this anchoring cable furthermore having the following characteristics (d1, d2, p1 and p2 in mm): 2?M?4 M+3?N?M+7 0.25<d1<0.40; 0.25<d2<0.40; 3.5<p1<7<p2<14.
    Type: Application
    Filed: October 10, 2011
    Publication date: February 2, 2012
    Applicant: Michelin Recherche et Technique S.A.
    Inventors: Denis ALVAREZ, Christian Signoret
  • Patent number: 8033311
    Abstract: Tire having a crown, a crown reinforcement, sidewalls and beads, a carcass reinforcement passing into the sidewalls and anchored in the beads. The anchoring is accomplished, in at least one bead, by a circumferential alignment of an anchoring reinforcing member oriented circumferentially and cooperating with a rubber composition. The anchoring reinforcing member is a metal cable having a construction M+N with an inner layer C1 of M wires of diameter d1 wound together in a helix at a pitch p1 , this layer C1 being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2. This anchoring cable satisfies (d1, d2, p1 and p2 being expressed in mm): 2?M?4, M+3?N ?M+7, 0.25 <d1 <0.40, 0.25 <d2 <0.40, 3.5 <p1 <7<p2<14.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: October 11, 2011
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Denis Alvarez, Christian Signoret
  • Publication number: 20110143160
    Abstract: Metal cable having two layers of construction 4+N comprising an inner layer C1 of 4 wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, characterised in that said cable furthermore has the following characteristics (d1, d2, p1 and p2 in mm): 0.25<d1<0.40; 0.25<d2<0.40; 3.5<p1<7<p2<14. Such a cable, of preferred construction 4+9, is in particular usable for reinforcing tires, in particular as an anchoring means for a carcass reinforcement of a tire without a solid bead wire.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 16, 2011
    Applicant: Michelin Recherche et Technique S.A.
    Inventors: Henri Barguet, Thibaud Pottier, Denis Alvarez, Christian Signoret
  • Publication number: 20080318077
    Abstract: Metal cable having two layers of construction 4+N comprising an inner layer C1 of four wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2. The cable has the following characteristics (d1, d2, p1 and p2 in mm): 0.25<d1<0.40, 0.25<d2<0.40, 3.5<p1<7<p2<14. Such a cable, of preferred construction 4+9, is in particular usable for reinforcing tires, in particular as an anchoring means for a carcass reinforcement of a tire without a solid bead wire.
    Type: Application
    Filed: May 11, 2005
    Publication date: December 25, 2008
    Inventors: Henri Barguet, Thibaud Pottier, Denis Alvarez, Christian Signoret
  • Publication number: 20080066843
    Abstract: Tire comprising a crown surmounted by a tread, a crown reinforcement, two sidewalls and two beads, a carcass reinforcement passing into the two sidewalls and anchored in the two beads. The anchoring is accomplished, in at least one bead, by a circumferential alignment of at least one anchoring reinforcing member oriented circumferentially and cooperating with a rubber composition referred to as ‘anchoring rubber’. The anchoring reinforcing member is a metal cable having two layers of construction M+N comprising an inner layer C1 of M wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch P2. This anchoring cable has the following characteristics (d1, d2, p1 and P2 in mm): 2?M?4, M+3?N?M+7, 0.25<d1<0.40, 0.25<d2<0.40, 3.5<p1<7<P2<14.
    Type: Application
    Filed: May 11, 2005
    Publication date: March 20, 2008
    Inventors: Denis Alvarez, Christian Signoret