Patents by Inventor Evangelia Konstantaki

Evangelia Konstantaki 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).

  • Publication number: 20230303809
    Abstract: The present invention is directed to a rubber composition comprising 35 phr to 60 phr of a first polybutadiene rubber having a glass transition temperature within a range of ?80° C. to ?105° C., 5 phr to 30 phr of a second polybutadiene rubber having a glass transition temperature within a range of ?20° C. to ?40° C., 10 phr to 60 phr of polyisoprene selected from one or more of synthetic polyisoprene and natural rubber, 30 phr to 200 phr of at least one filler, and 40 phr to 120 phr of at least one plasticizer having a glass transition temperature within a range of ?40° C. to ?110° C. Furthermore, the present invention is directed to a tire comprising the rubber composition.
    Type: Application
    Filed: December 14, 2022
    Publication date: September 28, 2023
    Inventors: Luisa Fernanda Munoz MEJIA, Claude Charles Jacoby, Karmena Izabela Anyfantaki, Evangelia Konstantaki, Veronique Marie-Josee Herbeuval
  • Patent number: 10239363
    Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between the bead components, a pair of sidewalls overlying the carcass, and a rubber chafer portion adjacent to each of the sidewalls and positioned around at least a portion of each of the bead components and intended for contacting a rigid rim of a wheel, the rubber chafer portion comprising a radially innermost toe guard and a chafer adjacent to a radially outer end of the toe guard; wherein the ratio of a modulus of the toe guard to a modulus of the chafer is in the range of 3 to 10.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 26, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Claude Schweitzer, Kundan Kumar, Jean-Louis Marie Félicien Thomas, François Philippe Depouhon, Evangelia Konstantaki
  • Publication number: 20180319223
    Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between the bead components, a pair of sidewalls overlying the carcass, and a rubber chafer portion adjacent to each of the sidewalls and positioned around at least a portion of each of the bead components and intended for contacting a rigid rim of a wheel, the rubber chafer portion comprising a radially innermost toe guard and a chafer adjacent to a radially outer end of the toe guard; wherein the ratio of a modulus of the toe guard to a modulus of the chafer is in the range of 3 to 10.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Inventors: Claude SCHWEITZER, Kundan KUMAR, Jean-Louis Marie Félicien THOMAS, François Philippe DEPOUHON, Evangelia KONSTANTAKI
  • Patent number: 10052918
    Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between the bead components, a pair of sidewalls overlying the carcass, and a rubber chafer portion adjacent to each of the sidewalls and positioned around at least a portion of each of the bead components and intended for contacting a rigid rim of a wheel, the rubber chafer portion comprising a radially innermost toe guard and a chafer adjacent to a radially outer end of the toe guard; wherein the ratio of a modulus of the toe guard to a modulus of the chafer is in the range of 3 to 10.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 21, 2018
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Claude Schweitzer, Jean-Louis Marie Félicien Thomas, Evangelia Konstantaki, François Philippe Depouhon, Kundan Kumar
  • Publication number: 20150144244
    Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between the bead components, a pair of sidewalls overlying the carcass, and a rubber chafer portion adjacent to each of the sidewalls and positioned around at least a portion of each of the bead components and intended for contacting a rigid rim of a wheel, the rubber chafer portion comprising a radially innermost toe guard and a chafer adjacent to a radially outer end of the toe guard; wherein the ratio of a modulus of the toe guard to a modulus of the chafer is in the range of 3 to 10.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Claude Schweitzer, Jean-Louis Marie Félicien Thomas, Evangelia Konstantaki, François Philippe Depouhon, Kundan Kumar