Patent US4193236A successfully refreshed from Google Patents.
US4193236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple glazed unit having an adhesive cleat
Assignee: PPG Industries Inc
•
Filing: 1978-01-30
•
Granted: 1980-03-18
•
Expires: 1998-01-30
Abstract
Abstract Adhesive cleats having (1) adhesion in shear and (2) shear resistance of greater than about 40 pounds per square inch (2.80 kilograms per square centimeter) adhere a desiccative spacer to adjacent glass sheets to prevent spacer sag and/or spacer bow. A moisture-impervious sealant seals the airspace between the glass sheets to provide a multiple glazed unit.
Inventors
- 👤 Renato J. Mazzoni
- 👤 George R. Mistrick
- 👤 Barent A. Rosskamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:31
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66342
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
85 words
A method of making a multiple glazed unit to prevent spacer displacement comprising the steps of: mounting a spacer between a pair of panes to provide an airspace therebetween; selecting an adhesive having a shear property of greater than about 40 pounds per square inch (2.80 kilograms per squre centimeter) to prevent spacer displacement; securing the panes and spacer together with at least one cleat of the adhesive of said selecting step to prevent spacer displacement; and sealing the panes and spacer with a sealant.
Claim 2
Independent Claim
85 words
A method of making a multiple glazed unit to prevent spacer displacement comprising the steps of: mounting a spacer between a pair of panes to provide an airspace therebetween; selecting an adhesive having a shear property of greater than about 40 pounds per square inch (2.80 kilograms per squre centimeter) to prevent spacer displacement; securing the panes and spacer together with at least one cleat of the adhesive of said selecting step to prevent spacer displacement; and sealing the panes and spacer with a sealant.
Claim 3
Dependent Claim
40 words
The method as set forth in claim 1 wherein the adhesive cleat has a shear property of greater than about 60 pounds per square inch (4.20 kilograms per square centimeter) at temperatures of up to about 130° F. (54° C.).
Claim 4
Dependent Claim
80 words
The method as set forth in claim 1 wherein said sealing step includes the steps of: providing the sealant between marginal edge portions of the spacer and marginal edge portions of adjacent pane to form a primary seal; and providing the sealant on outer surface of the spacer and adjacent surface of adjacent pane to form a secondary seal; and said securing step includes the step of providing the at least one adhesive cleat between the primary and secondary seals.
Claim 5
Dependent Claim
27 words
The method as set forth in claim 1 wherein the panes are glass panes; the spacer is a dessicative spacer and the sealant is a moisture-impervious sealant.
Claim 6
Dependent Claim
25 words
The method as set forth in claim 1 wherein the adhesive has a lateral displacement of about 1/4 inch (0.64 centimeter) at its shear property.
Claim 7
Dependent Claim
40 words
The method as set forth in claim 1 wherein said selecting step includes the step of: testing adhesives to determine those adhesives having the shear property of greater than about 40 pounds per square inch (280 kilograms per square centimeter).
Claim 8
Dependent Claim
29 words
The method as set forth in claim 6 wherein the adhesives tested are selected from the group consisting of hot melt adhesives, silicone elastomers, polysulfide adhesives and polybutadiene adhesives.
Claim 9
Dependent Claim
42 words
The method as set forth in claim 1 wherein said securing step includes the steps of: adhering one pane to the spacer with at least one adhesive cleat; and adhering the other pane to the spacer with at least one adhesive cleat.
Claim 10
Dependent Claim
46 words
The method as set forth in claim 8 wherein said mounting step includes the step of: mounting the spacer inset form peripheral edge portions of the panels to form a peripheral channel; and said sealing step includes the step of flowing the sealant in the channel.
Claim 11
Dependent Claim
35 words
The method as set forth in claim 8 wherein said mounting step includes the step of: forming a peripheral recess between the spacer and adjacent pane; and practicing said securing step in the peripheral recesses.
Claim 12
Dependent Claim
64 words
A multiple glazed unit comprising: a pair of panes mounted about a spacer to provide an airspace therebetween; at least one adhesive cleat adhering the spacer and panes together, the adhesive from the cleat selected for having a shear property of greater than about 40 pounds per square inch (2.80 kilograms per square centimeter) to prevent spacer displacement; and a sealant sealing the airspace.
Claim 13
Dependent Claim
64 words
A multiple glazed unit comprising: a pair of panes mounted about a spacer to provide an airspace therebetween; at least one adhesive cleat adhering the spacer and panes together, the adhesive from the cleat selected for having a shear property of greater than about 40 pounds per square inch (2.80 kilograms per square centimeter) to prevent spacer displacement; and a sealant sealing the airspace.
Claim 14
Dependent Claim
31 words
The multiple glazed unit as set forth in claim 11 wherein the spacer is inset from peripheral edge portions of the panes to provide a peripheral channel for receiving the sealant.
Claim 15
Dependent Claim
38 words
The multiple glazed unit as set forth in claim 11 wherein side wall portions of the spacer are depressed so as to form a peripheral recess with adjacent pane and each recess has at least one adhesive cleat.
Claim 16
Dependent Claim
39 words
The multiple glazed unit a set forth in claim 11 wherein the adhesive has a shear property of at least about 60 pounds per square inch (4.20 kilograms per square centimeter) at temperatures of up to about 130° F.
Claim 17
Dependent Claim
61 words
The multiple glazed unit as set forth in claim 11 wherein the sealant is between marginal edge portions of the spacer and marginal edge portions of adjacent pane to form a primary seal and outer surface of the spacer and adjacent surface of adjacent pane to form a secondary seal and the at least one adhesive clear is between the seals.
Claim 18
Dependent Claim
29 words
The multiple glazed unit as set forth in claim 11 wherein the spacer is a desiccative spacer; the panes are glass panes and the sealant is a moisture-impervious sealant.
Claim 19
Dependent Claim
28 words
The multiple glazed unit as set forth in claim 11 wherein the adhesive has a lateral displacement of about 1/4 inch (0.64 centimeter) at its shear property value.
Claim 20
Dependent Claim
40 words
The multiple glazed unit as set forth in claim 11 wherein adhesives selected for the cleat have been tested and found to have a shear property of greater than about 40 pounds per square inch (2.80 kilograms per square centimeter).
Claim 21
Dependent Claim
31 words
The multiple glazed unit as set forth in claim 18 whrein the adhesive is selected from the group consisting of hot melt adhesives, silicone elastomer adhesives, polysulfide adhesives and polybutadiene adhesives.
Claim 22
Dependent Claim
37 words
The multiple glazed unit as set forth in claim 11 wherein: at least one adhesive cleat adheres the spacer to one of the panes; and at least one adhesive cleat adheres the spacer to the other pane.
Claim 23
Dependent Claim
105 words
The multiple glazed unit as set forth in claim 20 wherein the spacer of the unit has a rectangular shape having a predetermined length and the frequency and length of the cleat at each side is according to the following schedule: ______________________________________
Number
Length of Spacer
of Frequency of
Length of
at Side Cleats Cleats Cleats
______________________________________
0-84 inches 2 One cleat at
6 inches
(0-2.1 meters) midpoint (0.15 meters)
84-124 inches 2 One cleat at
6 inches
(2.1-3.1 meters) each 1/3 point
(0.15 meters)
124 inches and greater
2 One cleat at
6 inches
(3.1 meters and greater)
each 1/4 point
(0.15 meters)
______________________________________
Claim 24
Dependent Claim
27 words
The method as set forth in claim 1 wherein the unit has a rectangular shape and said securing step is practiced on each side of the unit.
References Cited (Backward Citations)
US2684266A
Cited
US3030673A
Cited
DE1095475B
Cited
DE1434283A1
Cited
US3280523A
Cited
US3473988A
Cited
GB1117028A
Cited
US3553913A
Cited
US3868805A
Cited
US3852149A
Cited
US3771276A
Cited
US3935683A
Cited
US3832254A
Cited
US4080482A
Cited
US4057945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |