Device insertable in a pipeline, with improved capacity for remaining in position
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United States of America Patent
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Issued Date -
Nov 17, 2005
app pub date -
May 11, 2005
filing date -
May 11, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a device intended to be introduced into a pipeline for circulating a fluid and comprising an operational element, a central connecting rod and a plurality of radial lugs, these lugs being linked to the operational element by means of the connecting rod and extending, under the effect of an elastic force, like umbrella spokes, to press against the inside of the pipeline. According to the invention, the lugs are spaced regularly around a same fitting, and the elastic force is at least partly constituted of a turning torque applied to the lugs through support means constituted, for example, by an axial spring pushing a stop washer mounted to slide on the connecting rod.
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