US3621934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic wall coverings
Assignee: Goodrich Corp
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Filing: 1970-05-18
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Granted: 1971-11-23
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Expires: 1990-05-18
Abstract
Abstract A sound-absorbing wall covering for regulating sound-absorption of a room is made in long sheets or rolls of a flexible laminate consisting of a flexible decorative skin such as vinyl adhered to a soft, porous backing material, preferably a foam polymeric material. Certain areas of the skin contain many very small perforations while the adjoining areas of the skin are imperforate; the perforate-to-imperforate areas typically being in the ratio of 1 to 1, thereby providing in a single sheet, in effect, a multipurpose sound-absorber. After installation, a room may be ''''fine-tuned'''' for sound by closing some of the holes in the perforated area.
Inventors
- 👤 Donald B Thrasher
- 👤 Ezra Earl Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:24
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8409; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0867; E04B2001/8457; E04B2001/8461; E04B2001/8476; E04B2001/848
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
An acoustic wall covering comprising: a. A flexible, porous backing material which has an open-cell structure at least throughout substantially all of the regions adjoining one side face of the material; and b. A skin of flExible material adhered throughout its area to said side face of the backing material; and c. A series of perforations through said skin communicating the exposed area of it with said open-cell side of said backing material; d. The perforations being grouped in discrete areas of the skin and adjoining substantial skin areas which are imperforate.
Claim 2
Dependent Claim
92 words
An acoustic wall covering comprising: a. A flexible, porous backing material which has an open-cell structure at least throughout substantially all of the regions adjoining one side face of the material; and b. A skin of flExible material adhered throughout its area to said side face of the backing material; and c. A series of perforations through said skin communicating the exposed area of it with said open-cell side of said backing material; d. The perforations being grouped in discrete areas of the skin and adjoining substantial skin areas which are imperforate.
Claim 3
Dependent Claim
31 words
An acoustic wall covering according to claim 1 and further characterized in that: a. said porous backing material has a compressibility equal to or less than an equivalent thickness of air.
Claim 4
Dependent Claim
26 words
An acoustic wall covering according to claim 1 and further characterized in that the backing material is a foamed polymeric material at least about 1/16-inch thick.
Claim 5
Dependent Claim
32 words
An acoustic wall covering according to claim 1 and further characterized in that: a. the perforated areas of said skin are approximately in about a 1:1 ratio with the imperforated areas thereof.
Claim 6
Dependent Claim
31 words
An acoustic wall covering according to claim 1 and further characterized in that: a. the maximum dimension of the individual perforations ranges in size from about 5 to about 60 mils.
Claim 7
Dependent Claim
39 words
An acoustic wall covering according to claim 1 and further characterized in that: a. the ratio of the perforated areas to the imperforate area of the skin may range from about 1 to 1 to about 1 to 5.
Claim 8
Dependent Claim
31 words
An acoustic wall covering according to claim 1 and further characterized in that: a. the minimum dimension of each perforated or each imperforated area of the skin is about 2 feet.
Claim 9
Dependent Claim
33 words
An acoustic wall covering according to claim 1 and further characterized in that the number of holes in the perforated areas range from about 5 holes to about 60 holes per square inch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |