Patent ID: 8197611
Filing Date: 2012-06-12
Classification: F16L,Y10T

Abstract:
1. A device for introducing a pig tool into an operating pipeline or a gas pipeline, the device comprising: a guidance means which is at least partly introduced into a spot drilled hole of the pipeline, said guidance means having a substantially straight first pipe part having an introductory section disposed at an angle with respect to a longitudinal axis of the pipeline and with a curved, channel-like extension which, in an introduced state, sits on a wall of the pipeline facing the spot drilled hole, at least one portion of said first pipe part being located at a location outside of said pipeline, said at least one portion of said first pipe part comprising a first pipe part inner diameter, said first pipe part inner diameter being substantially equal to an inner diameter of the pipeline; a pneumatically or hydraulically operated cylinder for injecting the tool into the pipeline, the tool comprising an outer tool diameter, said outer tool diameter being substantially equal to the inner diameter of the pipeline, the tool comprising support arms that are moveable in an inward direction and an outward direction; and an interior bulge substantially diametrically facing said curved, channel-like extension and extending over a partial circumference of said substantially straight first pipe part, wherein the bulge functions to guide the tool around an edge of the spot drilled hole.