Device for moving a pig through a conduit, such as a...

Details Device for moving a pig through a conduit, such as a... Device for moving a pig through a conduit, such as a...

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 55/26 (2006.01) B08B 9/043 (2006.01) F16L 55/46 (2006.01)

Patent

CA 2306299

A device for moving a pig through a conduit, such as a pipeline, is proposed, comprising at least one pulling element with at least one sealing means. The sealing means comprises a supporting structure with variable circumference with at least one sealing element disposed on the circumference of the supporting structure. In a preferred embodiment, the supporting structure comprises supporting arms disposed substantially radially and being pivotable about axes, each perpendicular to the longitudinal central axis of the pulling element, and is mounted to the pulling element via the supporting structure and a central sleeve which can be fixed to the pulling element.

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