Apparatus for perforating corrugated tubing
AssigneeValley Gear and Machine, Inc.
InventorRichard Booms
Life of this patent
Estimating the term…
Abstract
An apparatus for cutting discontinuous apertures in the wall of a corrugated tube moving along an axial path between inlet and outlet ends of the apparatus, the apparatus including a first feeder-cutter wheel proximate to the outlet, a second feeder-cutter wheel proximate to the inlet and spaced axially from said first feeder-cutter wheel, each said wheel being disposed about the outer surface of said tube and having a cutting surface and a helical worm for engaging the tube corrugations, and means for rotating the feeder cutter wheels, wherein the improvement comprises means for axially moving the second feeder cutter wheel axially towards and away from the first feeder cutter wheel wherein to accurately position the feeder cutter wheels relative to tubing corrugations.
Claims20
An apparatus for perforating a corrugated tube comprising:
- at least a first and a second cutter station, each cutter station including at least one pair of feeder-cutter wheels, each feeder-cutter wheel comprising a threaded worm and at least one cutter disposed thereon, each threaded worm being adapted to continuously engage with the corrugations of the tube, the cutter stations being disposed along separate planes such that the first cutter station engages with any given corrugation before the second cutter station, each feeder-cutter wheel operably connected to an associated drive shaft for rotating each feeder-cutter wheel, the drive shafts being oriented at an angle relative to an axial path of the tube;
- a drive mechanism for rotating the drive shafts;
- and
- wherein at least one of the cutter stations is a movable cutter station being mounted to the apparatus for translatable movement along a path parallel to the axis of the tube.
Dependencies are inferred from the claim text.