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US4193236A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple glazed unit having an adhesive cleat

Assignee: PPG Industries Inc
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Filing: 1978-01-30
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Granted: 1980-03-18
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Expires: 1998-01-30
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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 13:17
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.

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

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