Multiple glazed unit having inner sheet mounted within a spacer

• US 4,149,348 A
• Filed: 07/15/1977
• Issued: 04/17/1979
• Est. Priority Date: 07/15/1977
• Status: Expired due to Term

• Current Assignee: PPG Industries Incorporated (Nouryon BV)
• Original Assignee: PPG Industries Incorporated (Nouryon BV)
• Inventors: Pyzewski, Stanley J.
• Primary Examiner(s): Ridgill, Jr., James L.
• Application Number:
  US05/815,980
• Time in Patent Office: 641 Days
• Field of Search: 52/397-403, 52/616, 52/304, 52/171, 52/172, 52/202, 52/308, 428/34, 156/109
• US Class Current: 52/172
• CPC Class Codes: E06B 3/66366 specially adapted for units comprising more than two panes or for attaching intermediate sheets

Abstract

A triple glazed unit has the inner glass sheet mounted within a spacer and outer glass sheets mounted on opposed outer surfaces of the spacer. The peripheral edge portions of the outer glass sheets extend beyond the spacer to form a peripheral channel. A moisture-resistant adhesive fills the peripheral channel to seal the unit and provide dead airspaces between the glass sheets.

Claims

1. A multiple glazed unit, comprising:

a spacer mounting at least one sheet, said spacer comprising at least one spacer section, said at least one spacer section as viewed in a plane normal to major surface of the at least one sheet having a base continuous with a pair of spaced legs and at least one groove between said pair of spaced legs for mounting said spacer section on marginal edge portions of said at least one sheet;

a first outer sheet having marginal edge portions contiguous with outer surface of a leg;

a second outer sheet having marginal edge portions contiguous with outer surface of the remaining leg;

said base of said spacer terminating short of peripheral edge portions of said outer sheets;

said spacer maintaining adjacent sheets in spaced relation to provide an airspace therebetween; and

means for maintaining said outer sheets against said spacer legs.

2. The multiple glazed unit as set forth in claim 1 wherein said base of said spacer is substantially flush with peripheral edge portions of said outer sheets.

3. The multiple glazed unit as set forth in claim 1 wherein at least one of the sheets is a glass sheet.

4. The multiple glazed unit as set forth in claim 1 wherein opposed inner surfaces of said at least one groove are angled toward one another.

5. The multiple glazed unit as set forth in claim 1 wherein an adhesive is between the outer marginal edge portions of said at least one sheet and adjacent walls of said at least one groove.

6. The multiple glazed unit as set forth in claim 1 wherein said base of said spacer is spaced inwardly from peripheral edge portions of said outer sheets to provide a peripheral channel and said maintaining means includes an adhesive in said peripheral channel adhered to said spacer base and said adjacent sheet surfaces.

7. The multiple glazed unit as set forth in claim 6 wherein said spacer contains a desiccant;

said adhesive is a moisture-resistant adhesive and further including means for providing communication between the airspaces and said desiccant.

8. A multiple glazed unit, comprising:

a spacer mounting at least one sheet, said spacer comprising at least one spacer section, said at least one spacer section as viewed in a plane normal to major surface of the at least one sheet having a base continuous with a pair of spaced legs and at least one groove between said pair of spaced legs for mounting said spacer section on marginal edge portions of said at least one sheet;

first and second sheets;

adhesive layer having one side on outer surface of said pair of said spaced spacer legs and opposed surface of said adhesive layer on inner marginal edge portions of each of said first and second sheets to secure said sheets about said spacer;

said base of said spacer terminating short of peripheral edge portions of said first and second sheets; and

said spacer maintaining said first and second sheets in spaced relation to provide an airspace between adjacent sheets.

9. The multiple glazed unit as set forth in claim 8 wherein said base of said spacer is generally flush with said peripheral edge portions of said first and second outer sheets.

10. The multiple glazed unit as set forth in claim 8 wherein said base of said spacer is spaced outwardly of said peripheral edge portions of said first and second outer sheets.

11. The multiple glazed unit as set forth in claim 8 wherein opposed inner surfaces of said at least one groove are angled toward one another.

12. The multiple glazed unit as set forth in claim 8 wherein at least one of the sheets is a glass sheet.

13. The multiple glazed unit as set forth in claim 8 wherein an adhesive is between the outer marginal edge portions of said at least one sheet and adjacent walls of said at least one groove.

14. The multiple glazed unit as set forth in claim 8 wherein said spacer contains a desiccant;

said adhesive is a moisture-resistant adhesive and further including means for providing communication between the airspaces and said desiccant.

15. The multiple glazed unit as set forth in claim 8 wherein said base of said spacer is spaced inwardly from peripheral edge portions of said first and second sheets to form a peripheral channel.

16. The multiple glazed unit as set forth in claim 15 wherein said peripheral channel is filled with a moisture-resistant adhesive.