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US 6,055,829 AGranted
Process for producing a desired breaking point on a glass body
AssigneeSchott Glas
InventorsAndre Witzmann, Ulls Trinks
Life of this patent
Estimating the term…
Abstract
A process is described for producing a desired breaking point for breaking the glass wall of a glass body, in particular a break-open ampule or a tube, or for separating parts out of a pane of glass by generating microcracks in the breaking zone, in which process the microcracks are generated in the interior of the glass wall or the pane of glass.
Claims8
A process for producing a selected breaking point for breaking a glass wall of a break-open ampule wherein the break-open ampule has a neck portion of a selected circumference, the process comprising:
- generating microcracks in the interior of the glass wall at the neck of the ampule in the circumference thereof by applying pulses of laser radiation having a wavelength to which the glass wall is at least semi-transparent.
Dependencies are inferred from the claim text.