Boring or penetrating the earth – With above-ground means to advance or retract boring means
Reexamination Certificate
2005-03-22
2005-03-22
Tsay, Frank (Department: 3672)
Boring or penetrating the earth
With above-ground means to advance or retract boring means
C173S184000, C166S077510
Reexamination Certificate
active
06868923
ABSTRACT:
A portable pipe installation/removal support apparatus for assisting in the installation/removal of a series of connectable pipe strings from a ground-level borehole. The support apparatus has a base, an upright extending from the base, and, in an exemplary embodiment, a pair of catch arms extending from the upright to define a catch platform. The pair of catch arms serves to hold an upper connector end of a pipe string at an operator-convenient standing elevation by releasably catching an underside of a pipe coupler connecting two pipe strings of the series of connectable pipe strings. This enables an operator to stand upright while coupling/uncoupling the series of connectable pipe strings during the installation/removal thereof from the ground-level borehole. Additionally, a process for installing and a process for removing a series of connectable pipe strings is disclosed utilizing such a support apparatus.
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Scott Eddie E.
Tak James S.
The Regents of the University of California
Thompson Alan H.
Tsay Frank
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