Patents by Inventor Bhanubhai D. Patel

Bhanubhai D. Patel 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).

  • Method for producing a deflation-proof pneumatic tire and tire filling composition having high resilience
    Patent number: 6629550
    Abstract: The present invention is directed to a method for producing a cured tire filling composition and the composition resulting from such a method. A mixture of a polyisocyanate having an average functionality of at least 2.3; a high molecular weight polyol having a hydroxyl number in the range of about 20 to about 31 and having an actual functionality of greater than 2.1; 6 to 65 weight percent of a polar plasticizing extender oil; and no greater than 0.5 weight percent polyamine is cured in the presence of a catalyst to form a polyurethane elastomer having a vertical rebound of greater than about 60% based on ASTM D2632 and a Durometer hardness in the range of about 5 to 60 (Shore A). The mixture is used to fill a tire prior to curing the composition within the tire casing and results in a deflation-proof tire that has considerably longer road testing life than tire filling compositions currently available.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: October 7, 2003
    Assignee: Arnco
    Inventors: Norman E. Rustad, Bhanubhai D. Patel, Juanito G. Santero
  • Method for producing a deflation-proof pneumatic tire and tire filling composition having high resilience
    Publication number: 20010007271
    Abstract: The present invention is directed to a method for producing a cured tire filling composition and the composition resulting from such a method. A mixture of a polyisocyanate having an average functionality of at least 2.3; a high molecular weight polyol having a hydroxyl number in the range of about 20 to about 31 and having an actual functionality of greater than 2.1; 6 to 65 weight percent of a polar plasticizing extender oil; and no greater than 0.5 weight percent polyamine is cured in the presence of a catalyst to form a polyurethane elastomer having a vertical rebound of greater than about 60% based on ASTM D2632 and a Durometer hardness in the range of about 5 to 60 (Shore A). The mixture is used to fill a tire prior to curing the composition within the tire casing and results in a deflation-proof tire that has considerably longer road testing life than tire filling compositions currently available.
    Type: Application
    Filed: January 4, 2001
    Publication date: July 12, 2001
    Inventors: Norman E. Rustad, Bhanubhai D. Patel, Juanito G. Santero
  • Method for producing a deflation-proof pneumatic tire and tire filling composition having high resilience
    Patent number: 6187125
    Abstract: The present invention is directed to a method for producing a cured tire filling composition and the composition resulting from such a method. A mixture of a polyisocyanate having an average functionality of at least 2.3; a high molecular weight polyol having a hydroxyl number in the range of about 20 to about 31 and having an actual functionality of greater than 2.1; 6 to 65 weight percent of a polar plasticizing extender oil; and no greater than 0.5 weight percent polyamine is cured in the presence of a catalyst to form a polyurethane elastomer having a vertical rebound of greater than about 60% based on ASTM D2632 and a Durometer hardness in the range of about 5 to 60 (Shore A). The mixture is used to fill a tire prior to curing the composition within the tire casing and results in a deflation-proof tire that has considerably longer road testing life than tire filling compositions currently available.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: February 13, 2001
    Assignee: Arnco
    Inventors: Norman E. Rustad, Bhanubhai D. Patel, Juanito G. Santero