the insertion apparatus 10 having the hydraulic cylinders 25
parallel and adjacent to the insertion rod 21 such that the
insertion apparatus is able to power the insertion rod without
extending the height of the structure.
The independent claims 19 and 22 are reproduced as
follows:
19. A method of inserting a measuring instrument into
the central portions of a pipeline to thereby measure
aspects of fluid flow through the pipeline, and including
the steps of:
(a) positioning a measuring instrument on an end of
an insertion rod;
(b) positioning the insertion rod through a
stuffing assembly so that the end thereof is moveable
into or away from the interior of the pipeline;
3
(c) applying a force to a second end of said rod
wherein the second end is on the exterior of the pipeline so
that the second end is forced toward the pipeline to achieve
insertion into the pipeline;
(d) utilizing line pressure to form a pressurized
fluid applied to a motive means to thereby force movement of
said rod; and
(e) wherein the step of applying a force to the
second end of said rod is accomplished laterally of said rod
which precludes extending beyond said rod.
22. A pipeline insertion apparatus for making
measurements of conditions in a pipeline by inserting a
measuring mechanism through a stuffing assembly and blocking
valve extending outwardly from and in communication with the
pipeline and positioning the measuring mechanism at a
desired location within the cross sectional area of the
pipeline, the apparatus comprising:
(a) a laterally extending mounting member fixedly
attached to the stuffing assembly and blocking valve, the
mounting member having two opposing ends;
(b) an elongate insertion rod in sliding engagement
relative to said laterally extending mounting member having
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Last modified: November 3, 2007