Boring or penetrating the earth – Processes
Reexamination Certificate
2006-04-25
2006-04-25
Bagnell, David (Department: 3672)
Boring or penetrating the earth
Processes
C175S423000, C166S088200, C188S067000
Reexamination Certificate
active
07032690
ABSTRACT:
An insert bowl, bushing, or spider includes a bowl having a central bore defined by an inner surface having an upper tapered section for engaging slips supporting a work string and a lower section. A wear indicator, such as a groove or substantially horizontal groove, is formed in the inner surface of the bowl and provides a visual indicator of wear to the bowl. A second wear indicator, such as a groove or substantially horizontal groove, may also be formed in the inner surface of the bowl. The inability to visually detect all or a portion of the wear indicator signifies that maximum recommended wear to the bowl has been reached and the bowl should be replaced to avoid damage to the work string.
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Louviere Jeremy Michael
Ramey Joe Stewart
Access Oil Tools, Inc.
Anthony Ted A.
Bagnell David
Bomar Shane
Domingue C. Dean
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