US3928953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged add-on multiple glazing units and method
Assignee: PPG Industries Inc
•
Filing: 1974-03-25
•
Granted: 1975-12-30
•
Expires: 1994-03-25
Abstract
Abstract Two prefabricated add-on glazing subassemblies are sealed together to form a package for handling, shipping, and storage. When separated, each subassembly is mounted onto an existing single glazed window to convert it to an insulating, sealed, multiple glazed installation.
Inventors
- 👤 Renato J Mazzoni
- 👤 George H Bowser
- 👤 John L Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:30
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66328; E06B3/54; E06B3/5418; E06B3/66342; E06B3/6621
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
84 words
A packaged assembly of glazing units comprising: two discrete glazing subassemblies, each including a transparent pane and a spacer element affixed to marginal portions of one major surface of each said pane; said subassemblies adjoining each other in opposed, substantially non-adhering relation, said spacers lying between said panes in substantial alignment with each other so as to form a substantially enclosed space between said panes; and closure means adhered to peripheral surfaces of said adjoined subassemblies for retaining said subassemblies in the adjoining relationship.
Claim 2
Dependent Claim
84 words
A packaged assembly of glazing units comprising: two discrete glazing subassemblies, each including a transparent pane and a spacer element affixed to marginal portions of one major surface of each said pane; said subassemblies adjoining each other in opposed, substantially non-adhering relation, said spacers lying between said panes in substantial alignment with each other so as to form a substantially enclosed space between said panes; and closure means adhered to peripheral surfaces of said adjoined subassemblies for retaining said subassemblies in the adjoining relationship.
Claim 3
Dependent Claim
23 words
The packaged assembly of claim 1 wherein said closure means also comprises a barrier for resisting penetration of moisture into said enclosed space.
Claim 4
Dependent Claim
12 words
The packaged assembly of claim 2 wherein said spacer elements carry desiccant.
Claim 5
Dependent Claim
23 words
The packaged assembly of claim 1 wherein said one major surface of at least one of said panes has a coating applied thereto.
Claim 6
Dependent Claim
11 words
The packaged assembly of claim 1 wherein said panes are tinted.
Claim 7
Dependent Claim
11 words
The packaged assembly of claim 1 wherein said panes are glass.
Claim 8
Dependent Claim
15 words
The packaged assembly of claim 1 wherein said closure means comprises a moisture resistant tape.
Claim 9
Dependent Claim
13 words
The packaged assembly of claim 7 wherein said tape is metallic and flexible.
Claim 10
Dependent Claim
17 words
The packaged assembly of claim 7 wherein said tape includes a pleat disposed between said spacer elements.
Claim 11
Dependent Claim
27 words
The packaged assembly of claim 7 wherein said tape is adhered by means of a layer of moisture resistant material between said tape and said peripheral surfaces.
Claim 12
Dependent Claim
82 words
A packaged assembly of glazing units comprising: two discrete glazing subassemblies, each including a transparent pane and a spacer element affixed to marginal portions of one major surface of each said pane, said subassemblies adjoining each other with said spacer elements having at least a portion of their surfaces in non-adhering contact with each other so as to form a substantially enclosed space between said panes; and closure means adhered to the exterior of said adjoined subassemblies for maintaining said subassemblies adjoined.
Claim 13
Dependent Claim
82 words
A packaged assembly of glazing units comprising: two discrete glazing subassemblies, each including a transparent pane and a spacer element affixed to marginal portions of one major surface of each said pane, said subassemblies adjoining each other with said spacer elements having at least a portion of their surfaces in non-adhering contact with each other so as to form a substantially enclosed space between said panes; and closure means adhered to the exterior of said adjoined subassemblies for maintaining said subassemblies adjoined.
Claim 14
Dependent Claim
23 words
The packaged assembly of claim 11 wherein said closure means also comprises a barrier for resisting penetration of moisture into said enclosed space.
Claim 15
Dependent Claim
12 words
The packaged assembly of claim 12 wherein said spacer elements carry desiccant.
Claim 16
Dependent Claim
23 words
The packaged assembly of claim 11 wherein said one major surface of at least one of said panes has a coating applied therto.
Claim 17
Dependent Claim
11 words
The packaged assembly of claim 11 wherein said panes are tinted.
Claim 18
Dependent Claim
11 words
The packaged assembly of claim 11 wherein said panes are glass.
Claim 19
Dependent Claim
21 words
The packaged assembly of claim 11 wherein said closure means comprises an extrusion of sealant material disposed between said spacer elements.
Claim 20
Independent Claim
139 words
A method of adding an additional transparent pane to an installed pane so as to form a sealed, insulating space therebetween comprising the steps of: transporting to the installation site a packaged assembly of two glazing subassemblies, each of which includes a transparent pane to be added, and a spacer element affixed to said pane to be added, said subassemblies adjoining each other with said spacer elements disposed therebetween so as to form an enclosed space betweeN said panes to be added, said packaged assembly further including closure means adhered to peripheral surfaces of said subassemblies for maintaining the adjoining relationship of said subassemblies; dividing said packaged assembly to separate the two subassemblies; and mounting one of said subassemblies onto the installed pane with the spacer element disposed between the pane to be added and the installed pane. pg,16
Claim 21
Independent Claim
139 words
A method of adding an additional transparent pane to an installed pane so as to form a sealed, insulating space therebetween comprising the steps of: transporting to the installation site a packaged assembly of two glazing subassemblies, each of which includes a transparent pane to be added, and a spacer element affixed to said pane to be added, said subassemblies adjoining each other with said spacer elements disposed therebetween so as to form an enclosed space betweeN said panes to be added, said packaged assembly further including closure means adhered to peripheral surfaces of said subassemblies for maintaining the adjoining relationship of said subassemblies; dividing said packaged assembly to separate the two subassemblies; and mounting one of said subassemblies onto the installed pane with the spacer element disposed between the pane to be added and the installed pane. pg,16
Claim 22
Dependent Claim
23 words
The method of Claim 18 wherein said closure means comprises a moisture resistant tape, and said dividing step comprises peeling off said tape.
Claim 23
Dependent Claim
22 words
The method of claim 18 wherein said closure means comprises a moisture resistant tape, and said dividing step comprises cutting said tape.
Claim 24
Dependent Claim
24 words
The method of claim 18 wherein said closure means comprises an extrusion of sealant material, and said dividing step comprises cutting said sealant material.
References Cited (Backward Citations)
US1777435A
Cited
US3299591A
Cited
US3460303A
Cited
US3511990A
Cited
US3618755A
Cited
US3733237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |