Patents by Inventor Ronald A. Swor

Ronald A. Swor 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: 6608132
    Abstract: The invention relates to an improved carbon black for tire tread rubber. More particularly, the invention relates to a carbon black which imparts upon tire tread rubber improved treadwear, lower rolling resistance, lower heat buildup and improved tear resistance. The improved carbon black is in the N100 series and, when in rubber, combines the long tread wear and low heat buildup advantages N121 carbon black with the high tear resistance properties of N115 or N110. The improved carbon black has particular application to truck and bus steel cord radial tire treads, especially for use in on/off highway conditions, and for high performance passenger car tires.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 19, 2003
    Assignee: Columbian Chemicals Company
    Inventors: Francis G. Bomo, Ronald A. Swor
  • Patent number: 5494955
    Abstract: A method of improving balance of properties, such as increased reinforcement and reduced rolling resistance of a rubber compound, comprising mixing the rubber compound with a carbon black and a silane coupling agent for a period of between about 10 seconds and 20 minutes at a temperature of between about C. and C. such as a styrene butadiene rubber compound, is disclosed. The method involves mixing the rubber compound "in situ" with a carbon black and Bis(3-triethoxysilylpropyl)-tetrasulfane at ambient temperature.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: February 27, 1996
    Assignee: Columbian Chemicals Company
    Inventors: Ronald A. Swor, Rodney L. Taylor