Glass panel unit and windowpane

Patent metadata

Field	Value
Publication number	US-10597933-B2
Application number	US-201615763787-A
Country	US
Kind code	B2
Filing date	Sep 14, 2016
Priority date	Sep 29, 2015
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A glass panel unit includes a first pane of glass, and a second pane of glass facing the first pane of glass with the panes of glass spaced a predetermined interval apart. The glass panel includes a seal disposed between the panes of glass and joined to them in an airtight manner, and an interior space encompassed with the panes of glass and the seal. The glass panel unit includes: a partition wall disposed in the interior space and divides the interior space into a first space as a vacuum space and a second space; an air release vent formed in a first or second pane of glass and communicates with the second space; and a blocking member provided in the air release vent.

First claim

The invention claimed is:

1. A glass panel unit, comprising
a first pane of glass,
a second pane of glass that faces the first pane of glass with the first pane of glass and the second pane of glass spaced a predetermined interval apart,
a seal that is disposed between the first pane of glass and the second pane of glass and joined to the first pane of glass and the second pane of glass in an airtight manner,
an interior space that is encompassed with the first pane of glass, the second pane of glass and the seal,
a partition wall that is disposed in the interior space and divides the interior space into a first space and a second space so that the first space is a vacuum space and the second space is a non-vacuum space,
an air release vent that is formed in the first pane of glass or the second pane of glass and communicates with the second space, and
a blocking member that is provided in the air release vent,
the blocking member being composed of a filler disposed in all of the air release vent and the second space so as to fill the air release vent and the second space.

2. The glass panel unit of claim 1 , further comprising:
a third pane of glass that faces the second pane of glass,
a second seal that is disposed between the second pane of glass and the third pane of glass and joined to the second pane of glass and the third pane of glass in an airtight manner, and
a second interior space that is sealed with the second pane of glass, the third pane of glass and the second seal and filled with dry gas.

3. A windowpane, comprising:
a glass panel unit of claim 1 , and
a window frame that a periphery of the glass panel unit is fit in.

4. A windowpane, comprising:
a glass panel unit of claim 2 , and
a window frame that a periphery of the glass panel unit is fit in.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Abe Hiroyuki
• Uriu Eiichi
• Hasegawa Kazuya
• Nonaka Masataka
• Ishibashi Tasuku

Classifications

• E06B2007/026

  with air flow between panes · CPC title

• E06B3/6612 Primary

  Evacuated glazing units · CPC title

• E06B7/02 Primary

  for providing ventilation, e.g. through double windows; Arrangement of ventilation roses (airflow control members per se F24F13/08) · CPC title

• C03C27/06

  Joining glass to glass by processes other than fusing (fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66) · CPC title

• E06B3/677

  Evacuating or filling the gap between the panes {; Equilibration of inside and outside pressure}; Preventing condensation in the gap between the panes (by means of spacing elements E06B3/663); Cleaning the gap between the panes · CPC title