Method and means for forming lines of weakness in closure...

Details Method and means for forming lines of weakness in closure... Method and means for forming lines of weakness in closure...

B - Operations, Transporting

23

K

327/1.5

B23K 26/08 (2006.01) B23K 26/00 (2006.01) B65D 41/32 (2006.01)

Patent

CA 1225439

METHOD AND MEANS FOR FORMING LINES OF WEAKNESS IN CLOSURE CAPS AND SIMILAR ARTICLES USING A LASER BEAM ABSTRACT OF THE INVENTION A method and means for forming a line of weakness in a molded plastic closure or the like using a laser beam for cutting or melting the plastic in an interrupted line of weakness or along a line extending partially through the article wall. The method and means are used in the high speed manufacture of closure caps, for example, for defining tear strips or other portions of the closure caps which are torn loose for cap removal.

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