US4948660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat and sound insulating panel
Assignee: Saint Gobain Isover SA France
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Filing: 1989-02-01
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Granted: 1990-08-14
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Expires: 2009-02-01
Abstract
Abstract A heat and sound insulating panel comprises an insulating layer of mineral fibers bonded by a synthetic resin and surfacing layer consisting of a sheet of glass fibers. Between these two layers there is a heat-sealing film, for example of polyethylene, having a low level of steam permeability, having adherent qualities when heated, and an aluminum film of a thickness less than or equal to 9 microns, the aluminum film being glued to the glass sheet.
Inventors
- 👤 Jean-Claude Rias
- 👤 Roger Zinzius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:05
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24843; Y10T428/24917; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31678; Y10T428/31692; Y10T428/31855; Y10T428/31938; Y10T442/00; Y10T442/60; Y10T442/654; Y10T442/656; Y10T442/696
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
93 words
A heat and sound insulating panel, comprising: (1) an insulating layer having at least first and second major surfaces, and comprised of mineral fibers bonded together, by a synthetic resin, (2) a heat-sealing film of low steam permeability adhered to the first major surface of the said insulating layer, (3) a film of aluminum adhered to said heat-sealing film opposite said insulating layer, and of a thickness no greater than 9 microns, and (4) a layer comprised of a sheet of glass fibers adhered to said film of aluminum opposite said heat-sealing film.
Claim 2
Dependent Claim
93 words
A heat and sound insulating panel, comprising: (1) an insulating layer having at least first and second major surfaces, and comprised of mineral fibers bonded together, by a synthetic resin, (2) a heat-sealing film of low steam permeability adhered to the first major surface of the said insulating layer, (3) a film of aluminum adhered to said heat-sealing film opposite said insulating layer, and of a thickness no greater than 9 microns, and (4) a layer comprised of a sheet of glass fibers adhered to said film of aluminum opposite said heat-sealing film.
Claim 3
Dependent Claim
13 words
The panel of claim 1, wherein said heat-sealing film is comprised of polyethylene.
Claim 4
Dependent Claim
13 words
The panel of claim 1, wherein said mineral fibers are comprised of glass.
Claim 5
Dependent Claim
26 words
The panel of claim 1, further comprising a separate substantially smooth comprised of glass fibers layer between said first insulating layer surface and said heat-sealing film.
Claim 6
Dependent Claim
27 words
The panel of claim 1, wherein said insulating layer of mineral fibers is comprised of glass fibers and has a weight of between 700-2500 g/m 2 .
Claim 7
Dependent Claim
25 words
The panel of claim 1, wherein the layer comprised of glass fibers is provided with an undercoat of paint, and a decorative layer provided thereon.
References Cited (Backward Citations)
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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) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |