Patent ID: 7669627
Filing Date: 2010-03-02
Classification: B60C,Y10T

Abstract:
1. A combination comprising: a tube-type tire to be mounted on a rim of a wheel, said tire including a main tire section that is adapted to extend circumferentially around the rim of the wheel and having an air chamber that is inflated with air to a first pressure, an inner tube that is adapted to extend circumferentially around the rim of the wheel and having an air chamber that is inflated with air to a second pressure, the second pressure to which the air chamber of said inner tube is inflated being greater than the first pressure to which the air chamber of said main tire section is inflated and wherein the volume and the size of the air chamber of said inner tube is smaller than the volume and the size of the air chamber of said main tire section such that said inner tube is incapable of providing run flat support should the tire experience a flat in response to a deflation of the air chamber of said main tire section, the air chamber of said main tire section being sealed from the air chamber of said inner tube to prevent the respective first and second pressures thereof from reaching equilibrium, and a liner laying on said inner tube so as to separate said inner tube from the air chamber of said main tire section, said liner including a sealing surface that creates an air tight seal between the inside of said main tire section and the rim of the wheel in order to isolate the air chamber of the main tire section from the rim when said liner is forced against the inside of said main tire section in response to the air chamber of said inner tube being inflated with air to the second pressure, said liner having continuous reinforcing cords running therethrough and connected to beads located at opposite sides of said liner, said liner also having a space extending between said beads at the opposite sides of said liner such that said liner extends only partially around said inner tube, said inner tube being spaced from said main tire section so that said main tire section cannot collapse against either one of said inner tube or said liner and the tire cannot ride on either one of said inner tube or said liner thereover should the air chamber of said main tire section be deflated.