Patent · US Active

Laminated glass comprising a fixation device introduced in a porthole for objects

US8427381B2 · kind B2 · utility

12Cited by

4References

18Claims

0Family size

Assignee

SAINT-GOBAIN GLASS FRANCE · FR

Inventors

Michael Labrot · Aachen, DE
Stefan Ziegler · Aachen, DE
Lothar Schmidt · Bochum, DE
Martin Melcher · Mountain View, US

Key dates

Filing date	Nov 29, 2007
Grant date	Apr 23, 2013
Priority date	—
Expiry date	Jul 1, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24322
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

In a laminated glass sheet with a fixing device introduced into a through-hole for objects, particularly for antennas, the through-hole is made up of holes of different sizes in two rigid sheets of the lamination, and the fixing device includes at least two parts introduced into the through-hole, pressing against surfaces around the edge of the through-hole, which surfaces are situated one facing the other. The two parts of the fixing device press from both sides against the surfaces around the edge surrounding the smaller hole made in the sheet, in that region of the walls of a smaller hole that exhibits an edge compression stress that is increased by heat treatment by comparison with the remainder of the surface of the sheet.

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