Patent US4011356A successfully refreshed from Google Patents.
US4011356A
Expired / Lapsed
US
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Laminated glazing pane
Assignee: Glaverbel Mecaniver SA
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Filing: 1974-12-19
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Granted: 1977-03-08
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Expires: 1994-12-19
Abstract
Abstract A laminated glazing pane comprised of at least two sheets of vitreous material joined together by an intervening layer of plastic material given improved sound attenuation properties by constructing the pane in such a manner that its base frequency (f) is between 0.70 and 0.97 times its theoretical base frequency (f 0 ).
Inventors
- 👤 Emmanuel Lambert
- 👤 Lucien Leger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:36
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B7/00; B32B7/04; B32B7/12; B32B17/10045; B32B17/10055; B32B17/1055; B32B17/10761; E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6707; B32B2307/00; B32B2307/10; B32B2307/102; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
105 words
In a laminated glazing pane comprising at least two sheets of vitreous material and an intervening layer of adhesive material bonding said sheets together, the improvement wherein said intervening layer is of a predetermined thickness and comprises polyvinyl chloride and an added plasticizer, said plasticizer being present in a proportion of 30.5% to 35%, by weight, of said intervening layer, for causing the numerical value of the base frequency (f) of said laminated pane to lie in the range 0.70f 9 ≦ f ≦ 0.97f 0 where f 0 is the theoretical base frequency of the pane, whereby the pane has improved sound damping properties.
Claim 2
Dependent Claim
105 words
In a laminated glazing pane comprising at least two sheets of vitreous material and an intervening layer of adhesive material bonding said sheets together, the improvement wherein said intervening layer is of a predetermined thickness and comprises polyvinyl chloride and an added plasticizer, said plasticizer being present in a proportion of 30.5% to 35%, by weight, of said intervening layer, for causing the numerical value of the base frequency (f) of said laminated pane to lie in the range 0.70f 9 ≦ f ≦ 0.97f 0 where f 0 is the theoretical base frequency of the pane, whereby the pane has improved sound damping properties.
Claim 3
Dependent Claim
25 words
A pane as defined in claim 1 wherein the measured base frequency thereof lies in the range 0.75f 0 ≦ f ≦ 0.90f 0 .
Claim 4
Dependent Claim
15 words
A pane as defined in claim 1 wherein said intervening layer is a self-sustaining sheet.
Claim 5
Dependent Claim
20 words
A pane as defined in claim 1 wherein said intervening layer has a thickness of no greater than 1.0 mm.
Claim 6
Dependent Claim
20 words
A pane as defined in claim 9 wherein said intervening layer has a thickness of no greater than 0.38 mm.
Claim 7
Dependent Claim
22 words
A pane as defined in claim 1 wherein said two vitreous sheets bonded together by said layer are of respectively different thicknesses.
Claim 8
Dependent Claim
42 words
A multiple glazing panel comprising: a first vitreous pane composed of a first vitreous sheet; a laminated pane as defined in claim 1; and means attached to the margins of said panes and holding said panes in spaced relation to one another.
Claim 9
Dependent Claim
21 words
A panel as defined in claim 7 wherein each vitreous sheet of said laminated pane is thinner than said first pane.
Claim 10
Dependent Claim
23 words
A panel as defined in claim 8 wherein the total thickness of said laminated pane is less than that of said first pane.
Claim 11
Dependent Claim
25 words
A panel as defined in claim 9 wherein said first pane has a thickness at least 1.5 times the total thickness of said laminated pane.
Claim 12
Dependent Claim
29 words
A panel as defined in claim 8 wherein each vitreous sheet of said laminated pane has a thickness of no greater than one-half the thickness of said first pane.
Claim 13
Dependent Claim
19 words
A panel as defined in claim 8 wherein said first pane has a thickness of at least 8 mm.
Claim 14
Dependent Claim
26 words
A panel as defined in claim 12 wherein each of said vitreous sheets of said vitreous pane has a thickness of no greater than 4 mm.
Claim 15
Dependent Claim
24 words
A panel as defined in claim 7 wherein the space between said first pane and said laminated pane is no greater than 25 mm.
Claim 16
Dependent Claim
23 words
A panel as defined in claim 7 wherein said means establish a weak dynamic coupling between said first pane and said laminated pane.
Claim 17
Dependent Claim
24 words
A panel as defined in claim 15 wherein said means comprise at least one intervening spacer member glued to marginal portions of said panes.
Claim 18
Dependent Claim
21 words
A panel as defined in claim 1 consisting of only two said sheets of vitreous material and one said intervening layer.
Claim 19
Dependent Claim
20 words
A panel as defined in claim 17 wherein said intervening layer has a thickness of no greater than 1.0 mm.
Claim 20
Dependent Claim
20 words
A panel as defined in claim 17 wherein said intervening layer has a thickness of no greater than 0.38 mm.
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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) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |