Glazing comprising break lines
AssigneeSaint-Gobain Glass France
InventorAlexander Oehrlein
Life of this patent
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Abstract
A window including deliberate rupture zones. The window is obtained by a method whereby the glass is subjected to local overheating of the structure using a high-energy beam penetrating the glass, deliberate rupture zones are produced by sequentially guiding the beam in a predetermined path along the preferred path for the window to break along, and by sequentially focusing the beam both along the predetermined path and at various depths relative to the surface of the window. The sequential focusing at various penetration depths follows a line that is inclined and/or curved relative to the normal to the surface of the glass so that a weakened structure is created in the window to obtain rupture behavior of the window that differs according to the direction in which the influence leading to rupture acts.
Claims18
1-17. (canceled)
A method for producing deliberate rupture zones in a window, comprising:
- subjecting a structure of glass to local overheating using a high-energy beam penetrating the glass, in which deliberate rupture zones are produced by sequentially guiding the beam in a predetermined path along a preferred path for the window to break along and by sequentially focusing the beam both along the predetermined path and at various depths relative to the surface of the window,
- wherein the sequential focusing at various penetration depths follows a line that is inclined and/or curved relative to the normal to the surface of the glass so that a weakened structure is created in the window to obtain rupture behavior of the window that differs according to a direction in which the influence leading to rupture acts.
Dependencies are inferred from the claim text.