Apparatus for perforating corrugated tubing

  • US 5,381,711 A
  • Filed: 06/01/1993
  • Issued: 01/17/1995
  • Est. Priority Date: 02/05/1992
  • Status: Expired due to Fees
First Claim
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1. An apparatus for perforating tubing having corrugations and valleys therebetween, the apparatus comprising:

  • (a) at least one pair of feeder-cutter wheels, each wheel comprising a worm, a threading disposed upon the worm, and a plurality of cutters disposed within the threading, each wheel being adapted to continuously intersect the corrugation of the tubing, the threading being dimensioned to substantially fill the valley of the tubing;

    (b) at least one pair of drive shafts, each drive shaft having one feeder-cutter wheel axially disposed thereon, the tubing having an axial path, the drive shafts being deployed at an angle relative to the axial path of the tubing to apply pressure to the tubing as it is moved past the wheels;

    (c) at least one pair of substantially planar adjustable mounting plates, each drive shaft having an associated mounting plate therewith; and

    (d) means for connecting the mounting plate to a base portion of the apparatus.

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