US4719730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical tack board
Assignee: National Gypsum Properties LLC
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Filing: 1986-12-19
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Granted: 1988-01-19
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Expires: 2006-12-19
Abstract
Abstract A demountable partition wall with laminated panels hung from a wall framework by clips applied to the back of the panel. The panels are sound absorbing tack boards, consisting essentially of a gypsum wallboard base board, a mineral fiber board core board and a porous decorative sheet of material adhered to the core board.
Inventors
- 👤 Daniel A. Winkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:03
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04B2/7411; E04B2002/7461; E04B2002/7466; E04B2002/7475
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
92 words
A laminated acoustical tack board panel comprising a gypsum board base board, a rigid, porous mineral fiber board core board, and a thin, porous, wall face surface laminate, adhesively affixed to said core board front surface and to the edges of said core board and said base board by an adhesive disposed on said wall face surface laminate, so disposed as to not substantially lessen the porosity thereof, said wall face surface laminate on said core board edges and said base board edges forming the sole edge framing element of said panel.
Claim 2
Dependent Claim
92 words
A laminated acoustical tack board panel comprising a gypsum board base board, a rigid, porous mineral fiber board core board, and a thin, porous, wall face surface laminate, adhesively affixed to said core board front surface and to the edges of said core board and said base board by an adhesive disposed on said wall face surface laminate, so disposed as to not substantially lessen the porosity thereof, said wall face surface laminate on said core board edges and said base board edges forming the sole edge framing element of said panel.
Claim 3
Dependent Claim
21 words
A laminated acoustical tack board panel as defined in claim 1 wherein said wall face surface laminate is a woven fabric.
Claim 4
Dependent Claim
22 words
A laminate acoustical tack board panel as defined in claim 1 wherein said wall face surface laminate is a perforated plastic sheet.
Claim 5
Dependent Claim
20 words
A laminated acoustical tack board panel as defined in claim 1 wherein said core board is formed of glass fibers.
Claim 6
Dependent Claim
30 words
A laminated acoustical tack board panel as defined in claim 4 wherein said glass fiber core board is about 1/4 inch thick and about 10 pounds per cubic foot density.
Claim 7
Dependent Claim
40 words
A laminated acoustical tack board panel as defined in claim 1 wherein said core board is adhered to said base board by a plurality of spaced apart parallel adhesive beads, of about 1/16 inch diameter located about every 1/4 inch.
Claim 8
Dependent Claim
29 words
A laminated acoustical tack board panel as defined in claim 1 wherein said base board is a paper covered gypsum core wallboard of about 3/8 to 5/8 inch thickness.
Claim 9
Dependent Claim
24 words
A laminated acoustical tack board panel as defined in claim 2 wherein said woven fabric is an acrylic latex backed fire retardant polyester fabric.
Claim 10
Dependent Claim
19 words
A laminated acoustical tack board panel as defined in claim 2 wherein said woven fabric is a fiberglass fabric.
Claim 11
Dependent Claim
23 words
A laminated acoustical tack board panel as defined in claim 3 wherein said perforated plastic sheet is a needle perforated polyvinyl chloride sheet.
Claim 12
Dependent Claim
88 words
A partition wall comprising a plurality of parallel spaced apart vertical metal studs, a plurality of horizontal channels extending through holes in the webs of said metal studs, and a plurality of panels mechanically attached to said horizontal channels, at least one of said panels being a laminated acoustical tack board panel as defined in claim 1, said panels being attached to said horizontal channels by suspension assemblies which include means for penetrating the backs of said panels and means for hanging the panels on said horizontal channels.
Claim 13
Dependent Claim
51 words
A partition wall as defined in claim 11 wherein said suspension assemblies each consisting of a pair of cooperative elements, one of said elements having said means for penetrating the backs of said panels and the other of said elements having said means for hanging the panels on said horizontal channels.
Claim 14
Dependent Claim
84 words
A partition wall as defined in claim 12 wherein said means for penetrating the backs of said panels consists of a plurality of short panel piercing tangs formed by partially severing small elongate sections of a plate-like clip, said plate-like clip further having a channel means to receive the upper portion of the element for hanging the panels on said horizontal channels, said element for hanging the panels on said horizontal channels further including a lower portion inclined outwardly to engage said horizontal channels.
Claim 15
Dependent Claim
23 words
A partition wall as defined in claim 11 wherein said laminated acoustical tack board panel has a woven fabric wall face surface laminate.
Claim 16
Dependent Claim
24 words
A partition wall as defined in claim 11 wherein said laminated acoustical tack board panel has a perforated plastic sheet wall face surface laminate.
Claim 17
Dependent Claim
31 words
A partition wall as defined in claim 11 wherein said core board is formed of glass fiber and is about 1/4 inch thick and about 10 pounds per cubic foot density.
Claim 18
Dependent Claim
27 words
A partition wall as defined in claim 11 wherein said base board is a paper covered gypsum core wallboard of about 3/8 to about 5/8 inch thickness.
Claim 19
Dependent Claim
21 words
A partition wall as defined in claim 14 wherein said woven fabric is an acrylic latex backed fire retardant polyester fabric.
Claim 20
Dependent Claim
16 words
A partition wall as defined in claim 14 wherein said woven fabric is a fiberglass fabric.
Claim 21
Dependent Claim
20 words
A partition wall as defined in claim 15 wherein said perforated plastic sheet is a needle perforated polyvinyl chloride sheet.
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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) | 1991-01-18 | 1991-07-20 | 1992-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-18 | 1995-07-20 | 1996-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-18 | 1999-07-20 | 2000-01-19 | $7700.00 | Window Closed / Lapsed |