Patent · US Active

Method of cutting a panel using a starter crack and a glass panel including a starter crack

US9272941B2 · kind B2 · utility

2Cited by

58References

20Claims

0Family size

Assignee

SAGE Electrochromics, Inc. · US

Inventors

Jean-Christophe Giron · Aachen, DE
Harvey Kalweit · Burnsville, US
Michael A. McCoy · Battle Ground, US
Li-Ya Yeh · Geilenkirchen, DE
Jean-Pierre Douche · Compiègne, FR

Key dates

Filing date	Mar 8, 2013
Grant date	Mar 1, 2016
Priority date	—
Expiry date	Mar 8, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The disclosure is directed to a cutting process involving: (a) creating a starter crack using a scribe wheel, (b) application of laser or electrothermal heating, and (c) subsequent cooling from a gas or an aerosol jet, as the laser beam and cooling jet move along the desired cutting line. The cutting process can be implemented for cutting a glass panel or other substrate into a plurality of smaller panels. The starter crack may be created on any of the smaller panels within about 10 mm to about 20 mm from the corner of the smaller panel.

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