Patent US3876034A successfully refreshed from Google Patents.
US3876034A
Expired / Lapsed
US
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Soundproof panel
Assignee: Airbus Group SAS
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Filing: 1974-01-28
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Granted: 1975-04-08
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Expires: 1994-01-28
Abstract
Abstract The invention relates to the soundproofing of structures in general. It relates to a soundproofing panel adapted to be applied against the structure to be soundproofed and consisting of a sheet of lead coated with a flexible and elastic material enabling it to closely hug the structure in question. The invention is applicable in particular to riveting shops.
Inventors
- 👤 Francesco Antonini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:43
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; B32B27/00; B32B27/18; B32B27/40; G; G10; G10K; G10K11/00; G10K11/16; G10K11/162; G10K11/168; B32B2307/00; B32B2307/10; B32B2307/102; B32B2307/50; B32B2307/536; B32B2311/00; B32B2311/14; E04B2001/8263; E04B2001/8457; E04B2001/8461
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
66 words
A sound insulating panel for damping the noise of structural members comprising a solid sheet of highly refined soft lead, an envelope of flexible elastomeric material having a shore hardness of about 55 encasing said sheet and means for securing said combined sheet and elastomeric casing in intimate contact with the structural member and for conforming said elastomeric casing to the shape of said structural member.
Claim 2
Dependent Claim
66 words
A sound insulating panel for damping the noise of structural members comprising a solid sheet of highly refined soft lead, an envelope of flexible elastomeric material having a shore hardness of about 55 encasing said sheet and means for securing said combined sheet and elastomeric casing in intimate contact with the structural member and for conforming said elastomeric casing to the shape of said structural member.
Claim 3
Dependent Claim
29 words
The sound insulating panel according to claim 1 wherein said means for securing said sheet and elastomeric casing comprises an adhesive means disposed on one surface of said casing.
Claim 4
Dependent Claim
23 words
The sound insulating panel according to claim 2 wherein said adhesive comprises a sheet of material having a contact adherent on each surface.
Claim 5
Dependent Claim
16 words
The sound insulating panel according to claim 2 wherein said adhesive comprises at least one magnet.
Claim 6
Dependent Claim
17 words
The soundproofing panel according to claim 4 wherein said magnet comprises particles embedded in said elastomeric material.
Claim 7
Dependent Claim
31 words
The soundproofing panel according to claim 1 wherein said lead sheet has a thickness of at least 0.6 mm and said elastomeric casing has a thickness of at least 25 mm.
Claim 8
Dependent Claim
20 words
The sound insulating panel according to claim 6 wherein said lead sheet has a mass of at least 6.4 kg/m.sup.2.
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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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |