# US 10,118,369 B2 · Laminated glazing unit

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- Number: US 10,118,369 B2
- Document ID: US10118369B2
- Status: Granted
- Kind: B2
- Application number: 14/434,602
- Filed: 2013-10-10
- Published: 2015-08-20
- Granted: 2018-11-06
- Earliest claimed: 2012-10-12
- Assignees: Saint-Gobain Glass France
- Applicants: Saint-Gobain Glass France
- Inventors: Dominique Bureloux; Adeline Girod; Alexandre Hennion; Andreas Schlarb; Bernd Stelling
- Web page: https://patentgrep.com/patent/US10118369B2

## CPC

- B32B 17/10376: {Laminated safety glass or glazing containing metal wires}
- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 17/10036: {comprising two outer glass sheets}
- B32B 17/10293: {Edge features, e.g. inserts or holes}
- B32B 17/10761: {containing vinyl acetal}
- B32B 37/1018: {using only vacuum}
- B32B 37/1207: {Heat-activated adhesive (B32B37/04 takes precedence)}
- B32B 37/16: with all layers existing as coherent layers before laminating
- B32B 2307/202: Conductive
- B32B 2307/412: Transparent
- B32B 2398/20: Thermoplastics
- B32B 2605/006: Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
- B60J 1/00: Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12})
- H01Q 1/1271: {for mounting on windscreens}
- H10F 77/939: {Output lead wires or elements}
- Y10T 29/49169: Assembling electrical component directly to terminal or elongated conductor
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A laminated glazing unit including a first and a second glass sheet, the first glass sheet being equipped with a first through-hole, a spacer film of thermoplastic polymer disposed between the first and second glass sheets, at least one conducting wire buried within the spacer film or disposed between the spacer film and the first glass sheet or disposed between the spacer film and the second glass sheet, one end of each conducting wire exiting from the laminated glazing unit via the first through-hole in the first glass sheet. The conducting wires are fed through a laminated glazing unit, with a guaranteed quality of positioning of the conducting wires, an improved field of view and with no induced noise.

## Claims

### Claim 1

A laminated glazing unit comprising:
a first and a second glass sheet, the first glass sheet being equipped with a first through-hole;
a spacer film of thermoplastic polymer disposed between the first and second glass sheets, and
at least one conducting wire buried within the spacer film or disposed between the spacer film and the first glass sheet or disposed between the spacer film and the second glass sheet, each conducting wire having a first end and a second end that is opposite the first end, each conducting wire extending continuously from the first end to the second end and having a portion that extends along a depth of the first through-hole so that each second end of the conducting wire exits from the laminated glazing unit via the first through-hole in the first glass sheet and the second end is located outside said first through-hole,
wherein a connector is arranged at the second end of the conducting wire.

### Claim 2 (depends on 1)

The glazing unit as claimed in claim 1, wherein, when the conducting wire is disposed between the spacer film and the second glass sheet, the spacer film is equipped with a through-hole allowing the passage of the conducting wire through the spacer film and through the first glass sheet, the through-hole in the spacer film having a size that is equal to or less than that of the first through-hole in the first glass sheet.

### Claim 3 (depends on 1)

The glazing unit as claimed in claim 1, wherein the second glass sheet is also equipped with a through-hole, the first through-hole in the first glass sheet and the through-hole in the second glass sheet having substantially the same size and facing one another, and wherein the spacer film is also equipped with a through-hole coinciding with the first through-hole in the first glass sheet and the through-hole in the second glass sheet.

### Claim 4 (depends on 1)

The glazing unit as claimed in claim 1, wherein the first end of each conducting wire exits from the laminated glazing unit via an end face of the laminated glazing unit or via a second through-hole in the first glass sheet situated on an edge of the glazing unit or via a through-hole in the second glass sheet situated on the edge of the glazing unit.

### Claim 5 (depends on 1)

The glazing unit as claimed in claim 1, wherein the at least one conducting wire is coated with a plastic film forming a web.

### Claim 6 (depends on 1)

The glazing unit as claimed in claim 1, wherein the first glass sheet is equipped with several first through-holes disposed near to one another.

### Claim 7 (depends on 1)

The glazing unit as claimed in claim 1, comprising several conducting wires, the second end of each conducting wire exiting from the laminated glazing unit via the first through-hole or through-holes in the first glass sheet.

### Claim 8 (depends on 1)

The glazing unit as claimed in claim 1, wherein the first through-hole has a size in the range between 3 and 80 mm.

### Claim 9 (depends on 1)

The glazing unit as claimed in claim 1, further comprising at least one opaque enamel strip coinciding with the at least one conducting wire, hiding from view the at least one conducting wire when viewed from a first main face of the glazing or an opposite second main face of the glazing, or both.

### Claim 10 (depends on 1)

The glazing unit as claimed in claim 1, further comprising an accessory attached to the laminated glazing unit near to or at the first through-hole, the accessory being connected to the second end of the conducting wire exiting from the laminated glazing unit via the first through-hole in the first glass sheet.

### Claim 11 (depends on 10)

The glazing unit as claimed in claim 10, wherein the accessory is a rain or humidity sensor, a light-intensity sensor, a camera, an antenna, a lighting device, a fan or a GPS positioning device.

### Claim 12 (depends on 10)

The glazing unit as claimed in claim 10, wherein the accessory is fixable onto or near to edges of the first through-hole in the first glass sheet or accommodated inside of the first through-hole in the first glass sheet and attached to the second glass sheet.

### Claim 13 (depends on 1)

The glazing unit as claimed in claim 1, wherein the conducting wire is a coaxial cable.

### Claim 14 (depends on 13)

The glazing unit as claimed in claim 13, wherein the coaxial cable is shielded.

### Claim 15

A method of fabrication of a laminated glazing unit, comprising
a first and a second glass sheet, the first glass sheet being equipped with a first through-hole;
a spacer film of thermoplastic polymer disposed between the first and second glass sheets, and
one or more conducting wires buried within the spacer film or disposed between the spacer film and the first glass sheet or disposed between the spacer film and the second glass sheet, each conducting wire having a first end and a second end that is opposite the first end, each conducting wire extending continuously from the first end to the second end and having a portion that extends along a depth of the first through-hole so that each second end of the conducting wire exits from the laminated glazing unit via the first through-hole in the first glass sheet and the second end is located outside said first through-hole,
wherein a connector is arranged at the second end of the conducting wire,
the method comprising:
supplying the first and the second glass sheet;
cutting out the first through-hole in the first glass sheet;
where necessary, forming the first and second glass sheets;
supplying the one or more conducting wires and the film of thermoplastic polymer optionally equipped with a through-hole, and attaching the one or more conducting wires onto the film of thermoplastic polymer;
installing the film of thermoplastic polymer carrying the one or more conducting wires between the first and second glass sheets, and feeding out an end of the one or more conducting wires via the first through-hole;
degassing under vacuum an assembly formed by the first and second glass sheets and the installed film of thermoplastic polymer, with use of a peripheral seal or of a vacuum bag, together with an adhesive for blocking the first through-hole in the first glass sheet, or of a sucker for sucking out the air via the first through-hole in the first glass sheet;
heat sealing edges of the laminated glazing unit and edges of the first through-hole, and
autoclaving the assembly.

### Claim 16

A method of fabrication of a laminated glazing unit, comprising
a first and a second glass sheet, the first glass sheet being equipped with a first through-hole;
a spacer film of thermoplastic polymer disposed between the first and second glass sheets, and
one or more conducting wires buried within the spacer film or disposed between the spacer film and the first glass sheet or disposed between the spacer film and the second glass sheet, each conducting wire having a first end and a second end that is opposite the first end, each conducting wire extending continuously from the first end to the second end and having a portion that extends along a depth of the first through-hole so that each second end of the conducting wire exits from the laminated glazing unit via the first through-hole in the first glass sheet and the second end is located outside said first through-hole,
wherein a connector is arranged at the second end of the conducting wire,
the method comprising:
supplying the first and the second glass sheet;
cutting out the first through-hole in the first glass sheet;
where necessary, forming the first and second glass sheets;
supplying the one or more conducting wires coated with a transparent plastic film forming a web and the film of thermoplastic polymer optionally equipped with a through-hole;
installing the film of thermoplastic polymer between the first and second glass sheets, the web of conducting wires being disposed between the film of thermoplastic polymer and the first glass sheet or the second glass sheet, and feeding out an end of the one or more conducting wires via the first through-hole;
degassing under vacuum an assembly formed by the first and second glass sheets and the installed film of thermoplastic polymer, with use of a peripheral seal or of a vacuum bag, together with an adhesive for blocking the first through-hole in the first glass sheet, or of a sucker for sucking out the air via the first through-hole in the first glass sheet;
heat sealing edges of the laminated glazing unit and edges of the first through-hole, and
autoclaving the assembly.

### Claim 17

A method of fabricating a laminated glazing unit, comprising
a first and a second glass sheet, the first glass sheet being equipped with a first through-hole;
a spacer film of thermoplastic polymer disposed between the first and second glass sheets, and
one or more conducting wires buried within the spacer film or disposed between the spacer film and the first glass sheet or disposed between the spacer film and the second glass sheet, each conducting wire having a first end and a second end that is opposite the first end, each conducting wire extending continuously from the first end to the second end and having a portion that extends along a depth of the first through-hole so that each second end of the conducting wire exits from the laminated glazing unit via the first through-hole in the first glass sheet and the second end is located outside said first through-hole,
wherein a connector is arranged at the second end of the conducting wire,
the method comprising:
cutting out the first through-hole in the first glass sheet;
optionally forming the first and second glass sheets;
attaching the one or more conducting wires onto the film of thermoplastic polymer that is optionally equipped with a through-hole;
installing the film of thermoplastic polymer carrying the one or more conducting wires between the first and second glass sheets, and feeding out an end of the one or more conducting wires via the first through-hole;
degassing under vacuum an assembly formed by the first and second glass sheets and the installed film of thermoplastic polymer, with use of a peripheral seal or of a vacuum bag, together with an adhesive for blocking the first through-hole in the first glass sheet, or of a sucker for sucking out the air via the first through-hole in the first glass sheet;
heat sealing edges of the laminated glazing unit and edges of the first through-hole, and
autoclaving the assembly.
