Invention Grant
- Patent Title: Process for breaking out an inner shape in a glass sheet
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Application No.: US16688143Application Date: 2019-11-19
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Publication No.: US10934204B2Publication Date: 2021-03-02
- Inventor: Thierry Dumenil
- Applicant: SAINT-GOBAIN GLASS FRANCE
- Applicant Address: FR Courbevoie
- Assignee: SAINT-GOBAIN GLASS FRANCE
- Current Assignee: SAINT-GOBAIN GLASS FRANCE
- Current Assignee Address: FR Courbevoie
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Priority: FR1463467 20141231
- Main IPC: C03B33/033
- IPC: C03B33/033 ; C03B33/04

Abstract:
A machine for breaking out an inner shape in a glass sheet, includes a cutting tool and a displacement system to produce a cutting line on a first side of the glass sheet that delimits an outer contour of the inner shape and an inner contour of a peripheral shape; a bearing system to bear against a second side of the sheet along the outer contour of the inner shape; a deformation system to deform one of the inner and peripheral shapes by convex bending toward the second side, the convex bending creating a differential deformation between the inner and peripheral shapes to break out the inner shape along the cutting line and separate the inner shape from the peripheral shape so that a distance needed for a contactless extraction is created, and an extraction system to extract the inner or peripheral shape while the convex bending is maintained.
Public/Granted literature
- US20200079677A1 PROCESS FOR BREAKING OUT AN INNER SHAPE IN A GLASS SHEET Public/Granted day:2020-03-12
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