Method and apparatus for forming openings in polymeric tubing

Details Method and apparatus for forming openings in polymeric tubing Method and apparatus for forming openings in polymeric tubing

2005-02-15

2005-02-15

Cadugan, Erica (Department: 3722)

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

C029S02600B, C029S055000, C029S053000, C408S032000, C408S042000

Reexamination Certificate

active

06854168

ABSTRACT:
In a method and apparatus for perforating multiwall polymeric cylindrical tubing, a drill head is slidably mounted for reciprocating movement on a support frame between inlet and outlet stations, the drill head having at least one drill for forming an opening in the wall of a length of unperforated tubing. The unperforated tubing is advanced along an axial path and a length thereof positioned in the drill head. The drill head and unperforated tubing are advanced simultaneously from the inlet to the outlet station, in unison and at the same speed, and without clamping the tubing. During this movement, the drill is actuated whereby to form an opening in the tubing material. At the outlet station, the perforated tube material is discharged from the drill head and the drill head is returned to the inlet station receive the next succeeding section of unperforated tubing and repeat the process.

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