Patents by Inventor Stephane Callamand

Stephane Callamand 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: 8950454
    Abstract: Tire tread for civil engineering works vehicle, this tread having a tread surface (10) intended to come into contact with the ground, this tread comprising a central part (21) delimited by grooves (3) of circumferential overall orientation, these grooves delimiting lateral parts (22) axially towards the outside of the central part (21), each lateral part (22) being provided with a plurality of transverse grooves (6) delimiting a plurality of blocks (7), the transverse grooves (6) having a cross section of minimum area (ST) and being distributed substantially uniformly in the circumferential direction, this tread being characterized in that the central part (21) is provided with a plurality of channels (51) extending transversely under the tread surface (10) and passing right through the said central part (21), each channel (51) comprising a first and a second end (52, 51), these first and second ends opening into the grooves (3) of circumferential overall orientation, at least one end of each channel opening
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 10, 2015
    Assignees: Compagnie Generale des Establissements, Michelin Recherche et Technique S.A.
    Inventors: Stephane Callamand, Denis Bijaoui
  • Publication number: 20110120607
    Abstract: A tire tread for civil engineering works vehicle, this tread having a tread surface (10) intended to come into contact with the ground, this tread comprising a central part (21) delimited by grooves (3) of circumferential overall orientation, these grooves delimiting lateral parts (22) axially towards the outside of the central part (21), each lateral part (22) being provided with a plurality of transverse grooves (6) delimiting a plurality of blocks (7), the transverse grooves (6) having a cross section of minimum area (ST) and being distributed substantially uniformly in the circumferential direction, this tread being characterized in that the central part (21) is provided with a plurality of channels (51) extending transversely under the tread surface (10) and passing right through the said central part (21), each channel (51) comprising a first and a second end (52, 53), these first and second ends opening into the grooves (3) of circumferential overall orientation, at least one end of each channel openin
    Type: Application
    Filed: May 13, 2009
    Publication date: May 26, 2011
    Inventors: Stephane Callamand, Denis Bijaoui
  • Publication number: 20060032571
    Abstract: A tire P, comprising a radial carcass reinforcement surmounted radially by a crown reinforcement consisting of at least one working reinforcement formed of at least two plies of calendered inextensible metallic reinforcement elements, of rubber mix, which are parallel to each other within each ply and are crossed from one ply to the next, forming with the circumferential direction angles ?1 and ?2 of between 10° and 45°, said working plies having axial widths L1 and L2, and of at least one supplementary ply, referred to as a protective ply, of axial width L3 such that L2<L3, L2 being the width of the working ply adjacent to the protective ply, and comprising metallic reinforcement elements. According to the invention, a layer of cohesive rubber mix GB is arranged radially to the inside of the working reinforcement, such that the axially outer end of said layer GB is at a distance from the equatorial plane greater than L1/2.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 16, 2006
    Applicant: Michelin Recherche et Technique, S.A.
    Inventors: Stephane Callamand, Philippe Gervais
  • Publication number: 20060032570
    Abstract: A tire P, comprising a radial carcass reinforcement surmounted radially by a crown reinforcement consisting of at least one working reinforcement formed of at least two plies of calendered inextensible metallic reinforcement elements, of rubber mix, which are parallel to each other within each ply and are crossed from one ply to the next, forming with the circumferential direction angles ?1, and ?2 of between 10° and 45°, said working plies having axial widths L1 and L2, and of at least one supplementary ply, referred to as a protective ply, of axial width L3 such that L2<L3, L2 being the width of the working ply adjacent to the protective ply, and comprising metallic reinforcement elements. According to the invention, a layer P of cohesive rubber mixes is arranged between at least the ends of the working crown plies.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 16, 2006
    Applicant: Michelin Recherche et Technique, S.A.
    Inventors: Stephane Callamand, Lucien Bondu