Patents by Inventor Roger Cary Cottrell

Roger Cary Cottrell 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).

  • Runflat tire having optimized carcass path
    Patent number: 6494242
    Abstract: The tire of the invention has an optimized path of the outermost carcass designed to maximize the extent of tensile stress in the sidewall and bead portions of the tire. The invention further provides separate reinforcement structures in the bead portion for anchoring the carcass or carcasses in the bead and for retaining the bead on the mounting rim during deflated operation, and said anchoring reinforcement also facilitates the maintenance of the desirable carcass profile.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: December 17, 2002
    Assignee: Michelin Recherche et Technique
    Inventor: Roger Cary Cottrell
  • Runflat tire having optimized carcass path
    Publication number: 20010001971
    Abstract: The tire of the invention has an optimized path of the outermost carcass designed to maximize the extent of tensile stress in the sidewall and bead portions of the tire. The invention further provides separate reinforcement structures in the bead portion for anchoring the carcass or carcasses in the bead and for retaining the bead on the mounting rim during deflated operation, and said anchoring reinforcement also facilitates the maintenance of the desirable carcass profile.
    Type: Application
    Filed: January 9, 2001
    Publication date: May 31, 2001
    Inventor: Roger Cary Cottrell