Patents by Inventor Steven Z. Lewkowicz

Steven Z. Lewkowicz 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: 5622576
    Abstract: An improved off-the-road pneumatic tire designed to be mounted on an associated design rim having a flange portion is described. The rim flange has an axially inward surface contacting the axially outward portion of the bead area of the tire. Each bead portion has a surface contacting a radially inner portion of the rim flange. The surface and the flange initially cease contact and diverge from one another at a location in the cross-section of the tire and rim and in a region of the flange in which a line L1 tangent to the flange surface and passing through the axis forms an angle greater than 0.degree. and less than or equal to 15.degree. with a radial line L2 passing through the point of divergence and perpendicular to the axis. The tire has a steel reinforced radial ply which extends between and wraps about each bead. The ply has an inflection point located radially between a radially outward surface of the bead and a radially outward surface of the rim flange portion.
    Type: Grant
    Filed: November 24, 1995
    Date of Patent: April 22, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jolan F. Lobb, Michael W. Cook, Dale E. Wells, Steven Z. Lewkowicz
  • Patent number: 5529103
    Abstract: An improved off-the-road pneumatic tire designed to be mounted on an associated design rim having a flange portion is described. The rim flange has an axially inward surface contacting the axially outward portion of the bead area of the tire. Each bead portion has a surface contacting a radially inner portion of the rim flange. The surface and the flange initially cease contact and diverge from one another at a location in the cross-section of the tire and rim and in a region of the flange in which a line L1 tangent to the flange surface and passing through the axis forms an angle greater than 0.degree. and less than or equal to 15.degree. with a radial line L2 passing through the point of divergence and perpendicular to the axis. The tire has a steel reinforced radial ply which extends between and wraps about each bead. The ply has an inflection point located radially between a radially outward surface of the bead and a radially outward surface of the rim flange portion.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: June 25, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jolan F. Lobb, Michael W. Cook, Dale E. Wells, Steven Z. Lewkowicz
  • Patent number: 5429168
    Abstract: An improved off-the-road pneumatic tire designed to be mounted on an associated design rim having a flange portion is described. The rim flange has an axially inward surface contacting the axially outward portion of the bead area of the tire. Each bead portion has a surface contacting a radially inner portion of the rim flange. The surface and the flange initially cease contact and diverge from one another at a location in the cross-section of the tire and rim and in a region of the flange in which a line L1 tangent to the flange surface and passing through the axis forms an angle greater than 0.degree. and less than or equal 15.degree. to with radial line L2 passing through the point of divergence and perpendicular to the axis. The tire has a steel reinforced radial ply which extends between and wraps about each bead. The ply has an inflection point located radially between a radially outward surface of the bead and a radially outward surface of the rim flange portion.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: July 4, 1995
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jolan F. Lobb, Michael W. Cook, Dale E. Wells, Steven Z. Lewkowicz