Patents by Inventor Jeffrey Scott Craddock

Jeffrey Scott Craddock 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).

  • Tire bead core and filler construction
    Patent number: 6374888
    Abstract: The run-flat tire (10) of this invention includes spaced apart bead areas (30) having a unique design to include first (34) and second (36) bead fillers adjacent a bead core (32). The second bead filler (36) is bounded by the first bead filler (34) and bead core (32). The method for manufacturing the tire to eliminate voids at the bead core (32) of the cured tire is also provided. The bead fillers are made to be resilient so that the tire can be easily mounted on a rim, particularly improving the ability to mount a run-flat tire (10) on a rim (80). The bead core (32) and fillers (34, 36) are designed for helping to sustain the run-flat tire (10) on the rim (80) with a loss of inflation pressure and to improve the running performance of the tire.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Walter Lee Willard, Jr., James Milo Endicott, Jeffrey Scott Craddock
  • Run-flat tire with an improved bead to rim interface
    Patent number: 5968294
    Abstract: The run-flat tire has a tread for contacting a ground surface and a belt package with belt plies interior to the tread for support of the tread. A plurality of radially reinforced carcass layers are positioned interior to the belt plies and include at least one carcass layer that extends between spaced apart annular beads. The tire has a pair of sidewalls each extending radially inward from shoulders at lateral edges of the belt package to the annular beads. The sidewalls have a plurality of sidewall stiffening members to support the tire during a loss of inflation pressure. The carcass layers are disposed with the sidewall stiffening members to help support the run-flat tire with a loss of inflation pressure.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: October 19, 1999
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Walter Lee Willard, Jr., James Milo Endicott, Jeffrey Scott Craddock
  • Run-flat tire with an improved bead to rim interface
    Patent number: 5868190
    Abstract: The run-flat tire has a tread for contacting a ground surface and a belt package with belt plies interior to the tread for support of the tread. A plurality of radially reinforced carcass layers are positioned interior to the belt plies and include at least one carcass layer that extends between spaced apart annular beads. The tire has a pair of sidewalls each extending radially inward from shoulders at lateral edges of the belt package to the annular beads. The sidewalls have a plurality of sidewall stiffening members to support the tire during a loss of inflation pressure. The carcass layers are disposed with the sidewall stiffening members to help support the run-flat tire with a loss of inflation pressure.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: February 9, 1999
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Walter Lee Willard, Jr., James Milo Endicott, Jeffrey Scott Craddock