US5009043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic panel
Assignee: MillerKnoll Inc
•
Filing: 1990-07-12
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Granted: 1991-04-23
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Expires: 2010-07-12
Abstract
Abstract An acoustic panel having highly desirable sound absorption characteristics. The panel is preferably formed of an open frame, there being at least one septum centrally located within the frame opening and in contact with the frame members. On each side of the septum are expanded fiberglass batts. Both sides of the frame are faced with perforated hardboard sheets which, in turn, are covered by an open-cell foam layer and a layer of scrim material comprising metal foil and a tear-resistant backing. The panels can be covered with a decorative fascia such as fabric or synthetic sheet materials.
Inventors
- 👤 Andrew J. Kurrasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:28
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/045; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8227; E04B1/84; E04B1/86; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2001/8423; E04B2001/8452; E04B2002/7479
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
98 words
In an acoustic wall panel comprising a peripheral frame having opposed sides and defining an opening, a septum mounted in said opening to restrict sound transmission therethrough, an inner sound-absorbing filling received within said opening, a rigid perforated facing secured to each side of said peripheral frame to permit sound to pass therethrough and to rigidify said frame, and an outer decorative fascia secured to said frame, the improvement which comprises: a sound-transmitting spacer layer overlying each facing and a thin gas impervious foil layer overlying said sound-transmitting spacer layer layer to provide fire retardancy to said panel.
Claim 2
Dependent Claim
98 words
In an acoustic wall panel comprising a peripheral frame having opposed sides and defining an opening, a septum mounted in said opening to restrict sound transmission therethrough, an inner sound-absorbing filling received within said opening, a rigid perforated facing secured to each side of said peripheral frame to permit sound to pass therethrough and to rigidify said frame, and an outer decorative fascia secured to said frame, the improvement which comprises: a sound-transmitting spacer layer overlying each facing and a thin gas impervious foil layer overlying said sound-transmitting spacer layer layer to provide fire retardancy to said panel.
Claim 3
Dependent Claim
17 words
An acoustic wall panel according to claim 1 wherein said perforated facings are each formed of hardboard.
Claim 4
Dependent Claim
28 words
An acoustic wall panel according to claim 1 wherein said perforated facings are each formed of hardboard with perforations being on the order of 0.25-0.75 inch in diameter.
Claim 5
Dependent Claim
26 words
An acoustic wall panel according to claim 3 wherein said perforated facings are each formed of hardboard having an open area in the range of 15-30%.
Claim 6
Dependent Claim
26 words
An acoustic wall panel according to claim 1 wherein said perforated facings are each formed of hardboard having an open area in the range of 15-30%.
Claim 7
Dependent Claim
18 words
An acoustic wall panel according to claim 1 wherein said inner filling is formed of an expanded fiberglass.
Claim 8
Dependent Claim
31 words
An acoustic wall panel according to claim 1 wherein said inner filling is formed of an expanded fiberglass having a density on the order of at least 0.6 lb/ft 3 .
Claim 9
Dependent Claim
15 words
An acoustic wall panel according to claim 1 wherein said septum tightly engages said frame.
Claim 10
Dependent Claim
21 words
An acoustic wall panel according to claim 1 wherein said septum tightly engages said frame and is formed of solid hardboard.
Claim 11
Dependent Claim
18 words
An acoustic wall panel according to claim 1 wherein said sound-transmitting spacer layer comprises a thin foam layer.
Claim 12
Dependent Claim
16 words
An acoustic wall panel according to claim 10 wherein said foam layer is an open-cell foam.
Claim 13
Dependent Claim
25 words
An acoustic wall panel according to claim 10 wherein said foam layer is an open-cell foam having a thickness on the order of 0.06 inch.
Claim 14
Dependent Claim
27 words
An acoustic wall panel according to claim 10 wherein said foam layer is an open-cell foam having a density on the order of 1.2 lb/ft 3 .
Claim 15
Dependent Claim
25 words
Ah acoustic wall panel according to claim 10 wherein said foil layer includes an aluminum foil layer with a coating selected from fiberglass and vermiculite.
Claim 16
Dependent Claim
21 words
An acoustic wall panel according to claim 14 wherein said aluminum foil layer is in facing contact with said foam layer.
Claim 17
Dependent Claim
17 words
An acoustic wall panel according to claim 1 wherein said frame is formed of pressed particle board.
Claim 18
Dependent Claim
45 words
An acoustic wall panel according to claim 16 wherein said particle board members have pressed surfaces which face outwardly and said decorative fascia and at least one of said fascia and foil layers is mechanically fastened to said outwardly facing pressed surfaces of said frame.
Claim 19
Dependent Claim
26 words
An acoustic wall panel according to claim 1 wherein said foil layer has a thickness in the range of 2 to 25 thousands of an inch.
Claim 20
Dependent Claim
44 words
An acoustic wall panel comprising a peripheral frame, sound absorbing means and soundtransmission reduction means within said frame, and an outer decorative fascia, the improvement which comprises a thin foam layer and a metal foil layer between said foam layer and said decorative fascia.
Claim 21
Dependent Claim
44 words
An acoustic wall panel comprising a peripheral frame, sound absorbing means and soundtransmission reduction means within said frame, and an outer decorative fascia, the improvement which comprises a thin foam layer and a metal foil layer between said foam layer and said decorative fascia.
Claim 22
Dependent Claim
27 words
An acoustic wall panel according to claim 19 wherein said foam layer is an open-cell foam having a density on the order of 1.2 lb/ft 3 .
Claim 23
Dependent Claim
31 words
An acoustic wall panel according to claim 20 wherein said foil layer includes an aluminum foil layer with a coating selected from fiberglass and vermiculite, said coating being adjacent said fascia.
Claim 24
Dependent Claim
26 words
An acoustic wall panel according to claim 21 wherein said foil layer has a thickness in the range of 2 to 25 thousands of an inch.
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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) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |