Patents by Inventor Joseph K. Hubbell

Joseph K. Hubbell 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).

  • Styrene-isoprene rubber for tire tread compounds
    Patent number: 5552490
    Abstract: The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: September 3, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David J. Zanzig, Paul H. Sandstrom, Joseph K. Hubbell, Wen-Liang Hsu, Adel F. Halasa, John J. A. Verthe
  • Process for synthesizing styrene-isoprene rubber
    Patent number: 5470929
    Abstract: The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: November 28, 1995
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David J. Zanzig, Paul H. Sandstrom, Joseph K. Hubbell, Wen-Liang Hsu, Adel F. Halasa, John J. A. Verthe
  • Tire with carbon fiber reinforcement
    Patent number: 5323829
    Abstract: A pneumatic tire with carbon fiber cord reinforcement wherein the carbon fiber cords have a round cross sectional shape and a twist per inch (TPI) of 1.2 to 1.6 turns per inch (TPI) is provided. Preferably, the carbon fiber cords are coated with an RFL or epoxy/RFL adhesive. It is also preferred that carbon fiber cords having an S twist and carbon fiber cords having a Z twist be used in the same reinforcing plies in the tire. Especially preferred is the incorporation of carbon fiber cords in a folded belt.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: June 28, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Joseph K. Hubbell, Perry W. Bell, David L. Bair, Surendra K. Chawla, Mahmoud Assaad, Warren L. Croyle, Joanne E. Shaw, Donald G. Vera
  • Rubber blend and tire with tread thereof
    Patent number: 5300577
    Abstract: A pneumatic tire with a tread comprising a blend of 3,4-polyisoprene rubber, cis 1,4-polybutadiene rubber, and a terpolymer of styrene/isoprene/butadiene. The triblend of the three basic elastomers when compounded and cured into a polymer network gives a high tan delta at 0.degree. C. associated with good wet traction and a low tan delta at 60.degree. C. which has been associated with low rolling resistance.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: April 5, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Raymond R. DiRossi, Gregory M. Holtzapple, Joseph K. Hubbell, Mark H. Seloover, John J. A. Verthe