Patents by Inventor Leo J. Hitzky

Leo J. Hitzky 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).

  • Tread including tie bars and sipes
    Patent number: 5580404
    Abstract: A pneumatic tire having a block design suited for off-road use, modified to improve rolling resistance and noise properties when used on paved surfaces, has a tread design having angled lateral grooves between the blocks in each circumferential row of blocks in the tread. Narrow grooves separate the blocks in several of the rows of blocks, and tie bars are present in the lateral grooves separating blocks in other rows of blocks. Void areas in the shoulder area of the tire enhance traction in mud and sand.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: December 3, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leo J. Hitzky
  • Tread for pneumatic tire and tire comprising such a tread
    Patent number: 5361816
    Abstract: A pneumatic tire having a block design suited for off-road use modified to improve rolling resistance and noise properties when used on paved surfaces has a tread design having angled lateral groove between the blocks in each circumferential row of blocks in the tread. Narrow grooves separate the blocks in several of the rows of blocks, and tie bars are present in the lateral grooves separating blocks in other rows of blocks. Void areas in the shoulder area of the tire enhance traction in mud and sand.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: November 8, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leo J. Hitzky
  • Noise control techniques for tires employing three different size design cycles
    Patent number: 4823853
    Abstract: A tire adapted to rotate around an axis and including a plurality of design cycles extending circumferentially around the tire. The design cycles have a total of three different pitch lengths that define a percent variation and a percent unbalance, the product of the percent variation and the percent unbalance lying in the range of 1,250 to 1,350.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: April 25, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leo J. Hitzky
  • Pneumatic tire tread pattern
    Patent number: 4823855
    Abstract: A pneumatic tire (10) has a preferred cross-sectional shape which acts in concert with a preferred tread structure to provide varying performance characteristics under varying operating conditions. The tread (11) has a directional tread pattern, with the net-to-gross ratio being higher in a central portion (CP) of the tread than in the laterally outer portions (OP.sub.1, OP.sub.2). The stiffness of the block elements (64,65,66,67,68,69,70,71) of the tread also varies across the width of the tread.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: April 25, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Rene Goergen, Leo J. Hitzky, Frederick W. Miller, Richard L. Galante, Terry J. Waibel, Michael A. Kolowski, William M. Hopkins
  • Pneumatic tire
    Patent number: 4503898
    Abstract: A pneumatic tire having a tread portion comprising a plurality of repeating design cycles disposed circumferentially adjacent each other about the circumference of said tire. The repeating design cycles having at least eight different lengths and being disposed about the circumference of the tire such that at least sixty percent (60%) of all the design cycles having the same length are disposed circumferentially adjacent each other.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: March 12, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leo J. Hitzky
  • Tire
    Patent number: D278135
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: March 26, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Armand M. Menster, Leo J. Hitzky
  • Tire
    Patent number: D283501
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: April 22, 1986
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leo J. Hitzky
  • Tire
    Patent number: D306989
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: April 3, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Patrick Demaret, Leo J. Hitzky, Bernard Jonette
  • Tire
    Patent number: D308503
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: June 12, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Rene Goergen, Leo J. Hitzky, Frederick W. Miller, Richard L. Galante, Terry J. Waibel, Michael A. Kolowski, William M. Hopkins
  • Tire
    Patent number: D308842
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: June 26, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leo J. Hitzky, Bernard Jonette
  • Tire
    Patent number: D308843
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: June 26, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leo J. Hitzky, Bernard Jonette
  • Tire tread
    Patent number: D340683
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: October 26, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leo J. Hitzky, Daniel Scheuren
  • Tire tread
    Patent number: D345722
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: April 5, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leo J. Hitzky, Claude Lardo
  • Tread for a tire
    Patent number: D351369
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: October 11, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leo J. Hitzky, Claude Lardo