US4543283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated glazing product
Assignee: Pilkington North America Inc
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Filing: 1984-09-04
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Granted: 1985-09-24
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Expires: 2004-09-04
Abstract
Abstract A glazing unit comprised of a glass substrate and a laceration inhibiting shield supported by and extending over what would otherwise be an exposed surface of the substrate. A gasket or frame member composed of a synthetic polymer extends around a major portion of the periphery of the glass substrate and shield and is adhered to the marginal edge surfaces of each, such gasket having been polymerized in situ adjacent the said periphery and having assumed through the autogenous mechanism incident to its polymerization and cure, while confined intimate contact with the portions to which it is adhered.
Inventors
- 👤 Edward W. Curtze
- 👤 Siegfried H. Herliczek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:16
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B29; B29C; B29C33/00; B29C33/0038; B29C33/0044; C; C03; C03C; C03C27/00; B29C45/00; B29C45/14; B29C45/14336; B29C45/14434; B29C70/00; B29C70/68; B29C70/74; B29C70/76; B29C70/763; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10018; B32B17/10165; B32B17/10293; B32B17/10302; B32B17/1033; B32B17/1055; B32B17/10761; B60; B60J; B60J10/00; B60J10/70; B29K; B29K2075/00; B29K2709/00; B29K2709/08; B32B2307/00; B32B2307/50; B32B2307/554; B32B2367/00; B32B2581/00; B32B2605/00; B32B2605/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
108 words
A glazing, including a glass substrate having adhered to a major surface thereof a layer of plastic material, said plastic material having an exposed surface and being effective to provide increased anti-lacerative properties to the glass sheet when the glazing is impacted and the glass sheet broken, and a gasket extending about a major portion of the periphery of the glazing and adhered to the adjacent marginal edge surfaces of both the glass substrate and plastic layer, said gasket having been polymerized in situ adjacent said edge surfaces and having assumed through the autogenous mechanism incident to its polymerization and cure while confined intimate contact with said surfaces.
Claim 2
Dependent Claim
108 words
A glazing, including a glass substrate having adhered to a major surface thereof a layer of plastic material, said plastic material having an exposed surface and being effective to provide increased anti-lacerative properties to the glass sheet when the glazing is impacted and the glass sheet broken, and a gasket extending about a major portion of the periphery of the glazing and adhered to the adjacent marginal edge surfaces of both the glass substrate and plastic layer, said gasket having been polymerized in situ adjacent said edge surfaces and having assumed through the autogenous mechanism incident to its polymerization and cure while confined intimate contact with said surfaces.
Claim 3
Dependent Claim
18 words
A glazing as defined in claim 1, wherein said gasket extends completely around the periphery of the glazing.
Claim 4
Dependent Claim
22 words
A glazing as defined in claim 1, wherein said exposed surface of said plastic layer has an abrasion resistant coating applied thereto.
Claim 5
Dependent Claim
18 words
A glazing as defined in claim 1, wherein said glass substrate is composed of a single glass sheet.
Claim 6
Dependent Claim
25 words
A glazing as defined in claim 1, wherein said substrate is composed of a plurality of glass sheets laminated together through an interposed adhesive material.
Claim 7
Dependent Claim
13 words
A glazing as defined in claim 4, wherein said glass sheet is tempered.
Claim 8
Dependent Claim
14 words
A glazing as defined in claim 4, wherein said glass sheet is heat strengthened.
Claim 9
Dependent Claim
16 words
A glazing as defined in claim 1, wherein said gasket is formed of an elastomeric material.
Claim 10
Dependent Claim
14 words
A glazing as defined in claim 1, wherein said gasket is composed of polyurethane.
Claim 11
Dependent Claim
17 words
A glazing as defined in claim 1, wherein said gasket is comprised of a microcellular polyurethane elastomer.
Claim 12
Dependent Claim
45 words
A glazing as defined in claim 1, wherein said layer of plastic material includes a thickness of polyvinyl butyral one surface of which is adhered to said major surface of glass, and a thickness of polyester adhered to the other surface of said polyvinyl butyral.
Claim 13
Dependent Claim
27 words
A glazing as defined in claim 11, wherein an abrasion resistant coating made from silica-reinforced methyl-siloxane is applied to the free surface of said thickness of polyester.
Claim 14
Dependent Claim
17 words
A glazing as defined in claim 12, wherein said gasket is comprised of a microcellular polyurethane elastomer.
Claim 15
Dependent Claim
110 words
A glazing, including at least one sheet of glass having adhered to a major surface thereof a layer of plastic material, said plastic material having an exposed surface and being effective to provide increased anti-lacerative properties to the glass sheet when the glazing is impacted and the glass sheet broken, and a gasket extending about a major portion of the periphery of the glazing and adhered to the adjacent marginal edge surfaces of both the glass and plastic layer, said gasket having been polymerized in situ adjacent said edge surfaces and having assumed through the autogenous mechanism incident to its polymerization and cure while confined intimate contact with said surfaces.
Claim 16
Dependent Claim
110 words
A glazing, including at least one sheet of glass having adhered to a major surface thereof a layer of plastic material, said plastic material having an exposed surface and being effective to provide increased anti-lacerative properties to the glass sheet when the glazing is impacted and the glass sheet broken, and a gasket extending about a major portion of the periphery of the glazing and adhered to the adjacent marginal edge surfaces of both the glass and plastic layer, said gasket having been polymerized in situ adjacent said edge surfaces and having assumed through the autogenous mechanism incident to its polymerization and cure while confined intimate contact with said surfaces.
Claim 17
Dependent Claim
18 words
A glazing as defined in claim 14, wherein said gasket extends completely around the periphery of the glazing.
Claim 18
Dependent Claim
69 words
A glazing product for use in closing an opening in a structure, comprising a main body of an optically transparent sheet of glazing material, a layer of transparent plastic material adhered in superimposed and coextensive relation to at least one surface of said sheet of glazing material and a gasket formed in situ about the peripheral marginal edges of said main body and said layer and adhesively secured thereto.
Claim 19
Dependent Claim
69 words
A glazing product for use in closing an opening in a structure, comprising a main body of an optically transparent sheet of glazing material, a layer of transparent plastic material adhered in superimposed and coextensive relation to at least one surface of said sheet of glazing material and a gasket formed in situ about the peripheral marginal edges of said main body and said layer and adhesively secured thereto.
Claim 20
Independent Claim
234 words
A method of producing an anti-lacerative glazing product including a glass sheet and a gasket adhered to the periphery thereof, said method including the steps of: assembling into a superimposed stacked arrangement a glass substrate sheet and a plastic anti-lacerative sheet; laminating said plastic sheet to said glass sheet to form an integral assembly; positioning said integral assembly within the interior of a mold cavity formed by a plurality of cooperating die sections, said mold cavity having the shape and position, relative to said integral assembly, of the ultimate gasket, and enclosing the marginal surfaces of the assembly immediately adjacent the periphery thereof; injecting into the mold cavity a composition which is capable of polymerization and cure to produce a gasket and, when cured in contact therewith, adheres to the marginal surfaces of the integral laminated assembly; controlling the pressure at which the composition is injected into the mold cavity to one sufficiently low that the glass substrate sheet and plastic anti-lacerative sheet are not damaged; controlling the temperature of the mold cavity, the injection of the composition and the amount of the composition injected so that the composition polymerizes after its injection and assumes by the autogenous mechanism incident to polymerization intimate contact with the mold cavity and with the sheets of said integral assembly, and cures while in such contact; and removing the resulting encapsulated anti-lacerative glazing product from the mold cavity.
Claim 21
Independent Claim
234 words
A method of producing an anti-lacerative glazing product including a glass sheet and a gasket adhered to the periphery thereof, said method including the steps of: assembling into a superimposed stacked arrangement a glass substrate sheet and a plastic anti-lacerative sheet; laminating said plastic sheet to said glass sheet to form an integral assembly; positioning said integral assembly within the interior of a mold cavity formed by a plurality of cooperating die sections, said mold cavity having the shape and position, relative to said integral assembly, of the ultimate gasket, and enclosing the marginal surfaces of the assembly immediately adjacent the periphery thereof; injecting into the mold cavity a composition which is capable of polymerization and cure to produce a gasket and, when cured in contact therewith, adheres to the marginal surfaces of the integral laminated assembly; controlling the pressure at which the composition is injected into the mold cavity to one sufficiently low that the glass substrate sheet and plastic anti-lacerative sheet are not damaged; controlling the temperature of the mold cavity, the injection of the composition and the amount of the composition injected so that the composition polymerizes after its injection and assumes by the autogenous mechanism incident to polymerization intimate contact with the mold cavity and with the sheets of said integral assembly, and cures while in such contact; and removing the resulting encapsulated anti-lacerative glazing product from the mold cavity.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-23 | 1989-03-25 | 1989-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-23 | 1993-03-25 | 1993-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-23 | 1997-03-25 | 1997-09-24 | $7700.00 | Window Closed / Lapsed |