Patent · US Active

Components made of glass or glass ceramic having predamage along predetermined dividing lines

US11613492B2 · kind B2 · utility

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11Claims

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Assignee

Schott AG · DE

Inventors

Jens Ulrich Thomas · Mainz, DE
Frank-Thomas Lentes · Bingen, DE
Andreas Ortner · Gau-Algesheim, DE
Jonas Schatz · Mainz, DE
Michael Kluge · Ludwigshafen, DE

Key dates

Filing date	Nov 19, 2019
Grant date	Mar 28, 2023
Priority date	—
Expiry date	Mar 23, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/57
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A component of glass or glass ceramic having predamages arranged along at least one predetermined dividing line is provided. The dividing line has a row of predamages lying one behind the other. The predamages pass continuously through the glass or the glass ceramic with at least 90% of the predamages being cylindrically symmetrical. The glass or the glass ceramic has a material compaction of at least 1% relative to an actual material density in a radius of 3 μm about a longitudinal axis of respective pre-damaged points. The relative weight loss per pre-damaged point is less than 10% and the component has a thickness of at least 3.5 mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.