Method to interrupt a media flow through a tubular pipe and...

Details Method to interrupt a media flow through a tubular pipe and... Method to interrupt a media flow through a tubular pipe and...

F - Mech Eng,Light,Heat,Weapons

16

K

251/98

F16K 51/00 (2006.01) F16K 17/40 (2006.01) F16L 55/10 (2006.01) F16L 55/124 (2006.01)

Patent

CA 1088494

ABSTRACT OF THE DISCLOSURE The invention provides a method and a device for interrupting or reducing media flow through a tubular pipe, involving removal of two opposed circumferential wall portions of the tubular pipe by means of two mainly parallel piston means, thereafter moving a third piston means substantially perpendicu- larly in relation to the direction of travel for the parallel piston means and the longitudinal axis of the tubular pipe to a position substantially extending through the parallel piston means, the tubular pipe and the opposed openings of same, said third piston means having expanding means, which, after completed movement of the third piston means, are expanded to reduce, or interrupt, the internal cross-sectional area of the tubular pipe.

303384

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