US4149348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple glazed unit having inner sheet mounted within a spacer
Assignee: PPG Industries Inc
•
Filing: 1977-07-15
•
Granted: 1979-04-17
•
Expires: 1997-07-15
Abstract
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.
Inventors
- 👤 Stanley J. Pyzewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:46
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66366
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
147 words
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.
Claim 2
Dependent Claim
147 words
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.
Claim 3
Dependent Claim
27 words
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.
Claim 4
Dependent Claim
21 words
The multiple glazed unit as set forth in claim 1 wherein at least one of the sheets is a glass sheet.
Claim 5
Dependent Claim
25 words
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.
Claim 6
Dependent Claim
35 words
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.
Claim 7
Dependent Claim
53 words
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.
Claim 8
Dependent Claim
35 words
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.
Claim 9
Dependent Claim
160 words
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.
Claim 10
Dependent Claim
160 words
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.
Claim 11
Dependent Claim
31 words
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.
Claim 12
Dependent Claim
31 words
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.
Claim 13
Dependent Claim
25 words
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.
Claim 14
Dependent Claim
21 words
The multiple glazed unit as set forth in claim 8 wherein at least one of the sheets is a glass sheet.
Claim 15
Dependent Claim
35 words
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.
Claim 16
Dependent Claim
35 words
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.
Claim 17
Dependent Claim
34 words
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.
Claim 18
Dependent Claim
20 words
The multiple glazed unit as set forth in claim 15 wherein said peripheral channel is filled with a moisture-resistant adhesive.
References Cited (Backward Citations)
BE514785A
Cited
US3544294A
Cited
US3837129A
Cited
US3872198A
Cited
US3928923A
Cited
US4047351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |