Patents by Inventor Darrell E. Covert

Darrell E. Covert 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: 5415215
    Abstract: A radial ply pneumatic tire (30) has as asymmetric tread portion (41) having circumferential grooves (50, 51, 52, 53) and diagonal grooves (55, 56) therein. The tread is divided into three axial regions (A, B, C) of equal width, and in each region the net-to-gross ratio is different. The rate of treadwear in the axially outermost regions (A, B) of the tread are substantially equalized by features including varying groove depths and widths, groove paths, and chamfering the edges of block elements (57, 58, 62, 63) of the tread.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: May 16, 1995
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti
  • Patent number: 5361814
    Abstract: A radial ply pneumatic tire (30) has as asymmetric tread portion (41) having circumferential grooves (50, 51, 52, 53) and diagonal grooves (55, 56) therein. The tread is divided into three axial regions (A, B, C) of equal width, and in each region the net-to-gross ratio is different. The rate of treadwear in the axially outermost regions (A, B) of the tread are substantially equalized by features including varying groove depths and widths, groove paths, and chamfering the edges of block elements (57, 58, 62, 63) of the tread.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: November 8, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti
  • Patent number: D324839
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: March 24, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert, Rudy E. Consolacion
  • Patent number: D325012
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: March 31, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti
  • Patent number: D325015
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: March 31, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D325365
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: April 14, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti
  • Patent number: D326072
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: May 12, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Philip S. Hammond, Darrell E. Covert
  • Patent number: D326075
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: May 12, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti, Andrew N. Hoang
  • Patent number: D326439
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: May 26, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante, Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti
  • Patent number: D326440
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: May 26, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael A. Kolowski, William M. Hopkins, Anthony J. Scarpitti, Andrew N. Hoang, Darrell E. Covert, Paul B. Maxwell, Frederick W. Miller, Richard L. Galante
  • Patent number: D328443
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: August 4, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D328582
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: August 11, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Paul B. Maxwell
  • Patent number: D328584
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: August 11, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D329032
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: September 1, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D329412
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: September 15, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D338436
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: August 17, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D338437
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: August 17, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Philip S. Hammond, William E. Egan, Darrell E. Covert
  • Patent number: D338859
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: August 31, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D340685
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: October 26, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul B. Maxwell, Darrell E. Covert
  • Patent number: D350512
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: September 13, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Darrell E. Covert, Maurice Graas, Paul B. Maxwell