Boring or penetrating the earth – Wedging slip assembly for supporting a pipe or rod
Reexamination Certificate
2006-02-07
2006-02-07
Neuder, William (Department: 3672)
Boring or penetrating the earth
Wedging slip assembly for supporting a pipe or rod
C166S075130, C166S077520
Reexamination Certificate
active
06994176
ABSTRACT:
The present invention provides a method and apparatus for gripping one or more tubulars, which may include casing, during a tubular handling operation, drilling operation, and/or drilling with casing operation. The gripping apparatus comprises a housing having a bore extending therethrough and one or more gripping members which extend radially within the bore to grippingly engage a tubular or casing when activated. Adjustable guides attached to a portion of the gripping apparatus facilitate rotational movement of the casing during the drilling operation when the gripping members of the gripping apparatus are deactivated.
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Heidecke Karsten
Shahin David
Neuder William
Patterson & Sheridan LLP
Weatherford / Lamb, Inc.
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