Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Reexamination Certificate
2006-02-07
2006-02-07
Tsay, Frank S. (Department: 3672)
Boring or penetrating the earth
With orienting or racking means for unconnected tools or...
C175S113000, C175S121000
Reexamination Certificate
active
06994174
ABSTRACT:
A drilling system is provided that includes first and second tubular connectors and a washpipe assembly including at least one dynamic seal and defining a fluid conduit having a first mating connector and a second mating connector. The drilling system also includes a controllable torque driver arranged to mechanically engage the washpipe assembly such that fluid connections are made between the first mating connector and the first tubular connector, and the second mating connector and the second tubular connector.
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Christie Parker & Hale LLP
Tsay Frank S.
Varco I/P Inc.
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