Apparatus for perforating tubing

B - Operations – Transporting – 26 – F

Patent

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164/52

B26F 1/00 (2006.01) B29C 17/10 (1980.01)

Patent

CA 1060775

Abstract of the Disclosure Corrugated tubing is advanced along its axial path by rotatably driven lead screw members the screw threading of which is in meshing engagement with the corrugations of the tubing, the lead screw members being in pairs with the screw threading of the members of each pair being of opposite hand and the lead screw members of each pair being rotated in opposite directions. The lead screw members of each pair present outwardly directed cutters which are synchronised substantially simultaneously to intersect the tubing thereby, inperforating the tubing, to retrain the tubing against rotation thereof about the axial path. There is also disclosed a method of producing the lead screw members with the outwardly projecting cutters mounted thereon.

274316

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