US3822764A
Expired / Lapsed
US
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Structural elements having highly improved soundproofing characteristics
Assignee: Saint Gobain Industries SA
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Filing: 1972-09-22
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Granted: 1974-07-09
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Expires: 1992-09-22
Abstract
Abstract Structural elements exhibiting extraordinary soundproofing characteristics comprised of two rigid layers with an intermediate layer of resilient material integrated in composite unitary mass wherein the thickness of the layers, their modulii of elasticity and shear, as well as physical properties, are critically interrelated to impose sound-deadening effects therethrough. Such structural elements are especially effective when used as facings for insulating elements of fibrous, porous or cellular materials, especially where such are applied to the opposite side of the latter, in which case the resulting insulating assemblies present many advantageous features in the fields of building constructions and other industrial locales.
Inventors
- 👤 M Val
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:34
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/162; G10K11/168; B; B32; B32B; B32B15/00; B32B15/14; B32B19/00; B32B19/04; B32B19/042; B32B21/00; B32B21/10; B32B27/00; B32B27/30; B32B27/302; B32B5/00; B32B5/02; B32B5/16; B32B5/18; B32B7/00; B32B7/02; B32B7/022; B32B7/04; B32B7/12; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/44; E04C2/52; E04C2/521; B32B2262/00; B32B2262/10; B32B2262/101; B32B2262/14; B32B2264/00; B32B2264/06; B32B2264/062; B32B2264/067; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2305/00; B32B2305/02; B32B2305/022; B32B2305/08; B32B2307/00; B32B2307/10; B32B2307/102; B32B2307/70; B32B2307/72; B32B2325/00; B32B2605/00; B32B2605/003; B32B2607/00; E04B2001/8263; E04B2001/8457; E04B2001/8461; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
34 words
A product as set forth in claim 1, wherein said outer rigid plates are formed of agglomerated wood particles with a binder, said plates being glued to the opposite sides of said intermediate layer.
Claim 2
Dependent Claim
27 words
A product as set forth in claim 1, wherein said rigid plates are formed of metal, which are glued to the opposite sides of said intermediate layer.
Claim 3
Dependent Claim
22 words
A product as set forth in claim 1, wherein said intermediate layer is in the form of a mat of fibrous material.
Claim 4
Dependent Claim
20 words
A product as set forth in claim 4, wherein the mat is formed of glass fibers agglomerated by a binder.
Claim 5
Dependent Claim
16 words
A product as set forth in claim 4, wherein the mat is formed of organic fibers.
Claim 6
Dependent Claim
20 words
A product as set forth in claim 4, wherein the mat is formed of organic fibers agglomerated by a binder.
Claim 7
Dependent Claim
21 words
A product as set forth in claim 4, wherein the mat is formed of a mixture of mineral and organic fibers.
Claim 8
Dependent Claim
25 words
A product as set forth in claim 4, wherein the mat is formed of a mixture of mineral and organic fibers agglomerated by a binder.
Claim 9
Dependent Claim
19 words
A product as set forth in claim 4, wherein the fibers of the mat are agglomerated by an elastomer.
Claim 10
Dependent Claim
75 words
A product as set forth in claim 5, wherein the glass fibers have a length of at least of the order of a decimeter, and of a diameter between about 10 to 40 microns, these fibers being entangled in parallel planes and joined together by one or more elastomers constituted by natural or artificial latex, the percentage in weight of the binder being between 20 and 50 percent of the total weight of the mat.
Claim 11
Dependent Claim
55 words
A product as set forth in claim 11 wherein the intermediate layer is fibrous material with the outer rigid plates adhesively affixed to the opposite sides of the former, said sides adapted to have the outer pores thereof blocked, at least partially, to prevent the migration of the adhesive to the interior of the layer.
Claim 12
Dependent Claim
20 words
A product as set forth in claim 4, wherein the mat is formed of mineral fibers agglomerated by a binder.
Claim 13
Dependent Claim
19 words
A product as set forth in claim 13, wherein the mineral fibers are agglomerated by a thermoplastic resin foam.
Claim 14
Dependent Claim
17 words
A product as set forth in claim 4, wherein the fibrous mat is reenforced by transverse needling.
Claim 15
Dependent Claim
22 words
A product as set forth in claim 1, including an insulating member of substantial thickness with gaseous spaces interspersed therethrough, affixed thereto.
Claim 16
Dependent Claim
26 words
A product as set forth in claim 16, wherein one of the rigid plates of the composite structural element is integrally cast to the insulating member.
Claim 17
Dependent Claim
29 words
A product as set forth in claim 16, wherein one of the rigid plates of the composite structural element is adhesively applied to a face of the insulating member.
Claim 18
Dependent Claim
22 words
A product as set forth in claim 16, wherein the insulating member is composed of a polystyrene foam of low specific density.
Claim 19
Dependent Claim
56 words
A product as set forth in claim 19, wherein the insulating member is formed of expanded pearls of polystyrene which have been reheated to the softening temperature which is followed by compressing the layer of pearls to the desired thickness and density and cooling the layer while subjecting it to sufficient pressure to maintain its thickness.
Claim 20
Dependent Claim
44 words
A product as set forth in claim 20, wherein the initially expanded pearls of polystyrene are derived from pre-expanding granules of polystyrene containing a blowing agent, by heating with steam at atmospheric pressure, followed by conditioning and treating with steam in a confined space.
Claim 21
Dependent Claim
47 words
A product as set forth in claim 20, wherein the initially expanded pearls of polystyrene are derived from prehating granules of polystyrene containing a blowing agent by air at a temperature in excess of 90* C. to 100*C., followed by the treatment of these granules with steam.
Claim 22
Dependent Claim
19 words
A product as set forth in claim 19, wherein the polystyrene foam is compressed and then treated with steam.
Claim 23
Dependent Claim
27 words
A product as set forth in claim 19, wherein the polystyrene foam of low specific density ranges from approximately 5 kg. to 6 kg. per cubic meter.
Claim 24
Dependent Claim
33 words
A product as set forth in claim 1, including an insulating core member of substantial thickness with gaseous spaces interspersed therethrough, said product being affixed to the opposite sides of said core member.
Claim 25
Dependent Claim
30 words
A product as set forth in claim 25, wherein one of the rigid plates of each composite structural element is cast integrally to one face of the insulating core member.
Claim 26
Dependent Claim
30 words
A product as set forth in claim 25, wherein one of the rigid plates of each composite structural element is adhesively applied to one face of the insulating core member.
Claim 27
Dependent Claim
21 words
A product as set forth in claim 27, wherein the insulating core member includes an air space in the interior thereof.
Claim 28
Dependent Claim
38 words
A product as set forth in claim 28, wherein the air space in the interior of the insulating core member is maintained by uniformly distributed spacing blocks between the inner surfaces of spaced portions of said core member.
Claim 29
Dependent Claim
48 words
A product as set forth in claim 28, wherein said insulating core member is divided in two portions on the opposite sides of said air space with the composite structural element on the outer face of each portion, and framing means for mounting both portions of the assembly.
Claim 30
Dependent Claim
29 words
A product as set forth in claim 28, including means for establishing a circulation of the air within the air space on the interior of said insulating core member.
Claim 31
Dependent Claim
26 words
An assembly as set forth in claim 30, including blowing means for circulating air through the air space between the two portions of the core member.
Claim 32
Dependent Claim
20 words
An assembly as set forth in claim 30, including conduits mounted in said framing means extending through said air space.
Claim 33
Dependent Claim
55 words
An assembly as set forth in claim 30, including a reinforcing plate on the inner face of one of said portions of said insulating core member in said air space, and fastening means extending through said plate and last-mentioned portion adapted to mount fixtures on the other face of the structural element of said portion.
Claim 34
Dependent Claim
22 words
A product as set forth in claim 1, wherein the resistance of flow of said intermediate layer is at least 60 Rayleigh.
Claim 35
Dependent Claim
40 words
A product as set forth in claim 1, wherein the shear modulus of the intermediate layer is at least equal to the modulus of elasticity thereof and preferably exceeds the modulus of elasticity thereof up to ten times the latter.
Claim 36
Dependent Claim
18 words
A product as set forth in claim 1, wherein the thickness of each rigid plate is approximately 10/CL.
Claim 37
Dependent Claim
24 words
A product as set forth in claim 37, wherein said outer rigid plates are formed of plaster adhering directly to the intermediate fibrous layer.
Claim 38
Dependent Claim
29 words
A product as set forth in claim 37, wherein said outer rigid plates are formed of plaster with an addition of sand, adhering directly to the intermediate fibrous layer.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |