US3920872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet-faced wallboard
Assignee: Armstrong World Industries Inc
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Filing: 1974-11-29
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Granted: 1975-11-18
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Expires: 1994-11-29
Abstract
Abstract A carpet material is applied to a fiberboard which has been provided with acoustical openings. The carpet is adhesively bonded to the fiberboard in such a manner as to prevent the obstruction of the entrances of the acoustical openings in the fiberboard. The carpet-covered fiberboard is utilized as a wallboard.
Inventors
- 👤 James C Ollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:06
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/10; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; B32B19/00; B32B19/06; B32B21/02; B32B3/00; B32B3/02; B32B3/26; B32B3/30; B32B7/00; B32B7/04; B32B7/12; B32B7/14; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/16; B32B2307/00; B32B2307/10; B32B2307/102; B32B2315/00; B32B2315/14; E04B2001/8457; E04B2001/8461; E04B2001/8476; E04B2001/848; E04B2/00; E04B2/74; E04B2002/7483; E04B2002/7485; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24802; Y10T428/2481; Y10T428/24826; Y10T428/24851
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
197 words
A WALLBOARD STRUCTURE WHICH IS COMPOSED OF A RIGID FIBERBOARD BASE HAVING ON ONE SURFACE THEREOF A PLURALITY OF PERFORATIONS THEREIN, AN ADHESIVE COATING APPLIED AT A VERY LOW APPLICATION RATE TO THE SURFACE OF THE FIBERBOARD IN SUCH A MANNER AS TO NOT CLOSE OVER ANY OF THE PERFORATION OPENINGS IN THE FIBERBOARD, AND A CARPET MATERIAL WHICH IS APPROXIMATELY 1/8 INCH THICK AND WHICH IS COMPOSED OF A PLUTALITY OF NEEDLE-BONDED FIBERS, THE BACK SURFACE OF THE CARPET MATERIAL, WHICH IS PLACED ADJACENT THE ADHESIVE-COATED SURFACE OF THE FIBERBOARD, BEING AN IRREGULAR SURFACE AND HAVING A DISCONTINUOUS COATING OF LATEX ADHESIVE APPLIED THERETO IN THE FORM OF DOTS OF ADHESIVE, SAID LATEX-COATED SURFACE OF THE CARPET MATEREAL BEING PLACED ADJACENT THE ADHESIVE COATING OF THE FIBERBOARD STRUCTURE WHEREBY THE LATEX COATING ON THE CARPET AND THE ADHESIVE COATING OF THE FIBERBOARD BOND THE CARPET MATERIAL TO THE FIBERBOARD, THE PERFORATIONS OF THE FIBERBOARD IN THE FIBERBOARD-CARPET MATERIAL COMBINATION NOT HAVING THEIR OPENINGS BRIDGED BY EITHER THE ADHESIVE COATING OF THE FIBERBOARD OR THE LATEX COATING OF THE CARPET SO AS TO CLOSE OFF THESE OPENINGS WHICH PROVIDE THE CARPET-COVERED FIBERBOARD STRUCTURE WITH GOOD ACOUSTICAL PROPERTIES.
Claim 2
Dependent Claim
197 words
A WALLBOARD STRUCTURE WHICH IS COMPOSED OF A RIGID FIBERBOARD BASE HAVING ON ONE SURFACE THEREOF A PLURALITY OF PERFORATIONS THEREIN, AN ADHESIVE COATING APPLIED AT A VERY LOW APPLICATION RATE TO THE SURFACE OF THE FIBERBOARD IN SUCH A MANNER AS TO NOT CLOSE OVER ANY OF THE PERFORATION OPENINGS IN THE FIBERBOARD, AND A CARPET MATERIAL WHICH IS APPROXIMATELY 1/8 INCH THICK AND WHICH IS COMPOSED OF A PLUTALITY OF NEEDLE-BONDED FIBERS, THE BACK SURFACE OF THE CARPET MATERIAL, WHICH IS PLACED ADJACENT THE ADHESIVE-COATED SURFACE OF THE FIBERBOARD, BEING AN IRREGULAR SURFACE AND HAVING A DISCONTINUOUS COATING OF LATEX ADHESIVE APPLIED THERETO IN THE FORM OF DOTS OF ADHESIVE, SAID LATEX-COATED SURFACE OF THE CARPET MATEREAL BEING PLACED ADJACENT THE ADHESIVE COATING OF THE FIBERBOARD STRUCTURE WHEREBY THE LATEX COATING ON THE CARPET AND THE ADHESIVE COATING OF THE FIBERBOARD BOND THE CARPET MATERIAL TO THE FIBERBOARD, THE PERFORATIONS OF THE FIBERBOARD IN THE FIBERBOARD-CARPET MATERIAL COMBINATION NOT HAVING THEIR OPENINGS BRIDGED BY EITHER THE ADHESIVE COATING OF THE FIBERBOARD OR THE LATEX COATING OF THE CARPET SO AS TO CLOSE OFF THESE OPENINGS WHICH PROVIDE THE CARPET-COVERED FIBERBOARD STRUCTURE WITH GOOD ACOUSTICAL PROPERTIES.
Claim 3
Dependent Claim
80 words
The structure of claim 1 wherein the composite structure is composed of a fiberboard base, a carpet material and therebetween an adhesive bond which is in two parts, the one part of the adhesive bond being dots of latex adhesive adhering to the irregular back of the carpet surface and the second part of the adhesive bond, and the second part of the adhesive bond being a film of adhesive fastening the rigid fiberboard to the dots of latex adhesive.
Claim 4
Dependent Claim
33 words
A wallboard structure as set forth in claim 2 wherein the perforations in one surface of the rigid fiberboard extend from one surface into the board structure, but not through the board structure.
Claim 5
Dependent Claim
20 words
The wallboard structure of claim 3 wherein the carpet material is wrapped partly around the end of the rigid fiberboard.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |