Patents Represented by Attorney Groover & Holmes

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  • Pressure relief system and methods of use and making
    Patent number: 6802380
    Abstract: A roller-cone rock bit in which the compensation reservoir is integrated with a hydrostatically-asymmetric seal, such as a V-seal, which provides pressure relief. This seal not only relieves overpressure during filling, and when the grease thermally expands as the bit first goes downhole, but also compensates transient overpressures during operation.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: October 12, 2004
    Assignee: Halliburton Energy Services Inc.
    Inventor: Mark P. Blackman