Patent US4140824A successfully refreshed from Google Patents.
US4140824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated wall panel
Assignee: Hunter Douglas International NV
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Filing: 1976-11-17
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Granted: 1979-02-20
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Expires: 1996-11-17
Abstract
Abstract The invention discloses a prefabricated partition having high acoustical insulation value and comprising two parts which are symmetrical on either side of a plane parallel to and between the outer facings. The frame members of one part being adhered to the frame members of the opposite part by an adhesive over at least a portion of the adjoining frame surfaces. To reduce the area of contact between the rigid frames they may be recessed along a portion of their adjoining surfaces and the recesses filled with an elastic foam. The frames are preferably of a rigid foam material.
Inventors
- 👤 Adrianus J. C. Gaillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:49
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; B; B32; B32B; B32B5/00; B32B5/18; B32B15/00; B32B15/04; B32B15/046; B32B3/00; B32B3/02; B32B3/06; B32B3/26; B32B3/30; B32B5/22; B32B7/00; B32B7/04; B32B7/12; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; B32B2305/00; B32B2305/02; B32B2305/028; B32B2307/00; B32B2307/10; B32B2307/102; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2307/50; B32B2307/56; B32B2311/00; B32B2607/00; E04B2001/8423; E04B2001/8442; E04B2001/8447; E04B2001/8452; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24653; Y10T428/24744; Y10T428/249921; Y10T428/249953; Y10T428/249981
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
143 words
A prefabricated wall panel comprising two parts, each of said parts having a facing of sheet material, each of said parts also having a frame to which said facing is secured, the frames of said parts being of a rigid foam material, the frame of one of said parts being joined to the frame of the other of said parts at a parting surface positioned between said facings of the panel, said parting surface being a plane substantially parallel to the planes of said facings, portions of the frame of each of said parts being positioned adjacent to and parallel with each of the two lateral edges of its associated facing, each of said frame portions being of lesser extent in the lateral direction of said panel than its associated facing, said facings and said frames defining an interior space between said facings.
Claim 2
Dependent Claim
143 words
A prefabricated wall panel comprising two parts, each of said parts having a facing of sheet material, each of said parts also having a frame to which said facing is secured, the frames of said parts being of a rigid foam material, the frame of one of said parts being joined to the frame of the other of said parts at a parting surface positioned between said facings of the panel, said parting surface being a plane substantially parallel to the planes of said facings, portions of the frame of each of said parts being positioned adjacent to and parallel with each of the two lateral edges of its associated facing, each of said frame portions being of lesser extent in the lateral direction of said panel than its associated facing, said facings and said frames defining an interior space between said facings.
Claim 3
Dependent Claim
18 words
The panel of claim 1 in which the interior space between said facings contains an acoustic filler material.
Claim 4
Dependent Claim
56 words
The panel of claim 1 in which the frame of one of said parts is adhered to the frame of the other of said parts over at least a portion of the width of said frames by a material having greater elasticity than the foam material, said frames being connected together only by such elastic bond.
Claim 5
Dependent Claim
65 words
The panel of claim 1 in which the frame of one of said parts is bonded directly to the frame of the other of said parts over a portion of the width of said frames only and the remainder of the width of said frames being joined by an elastic material, each of said frames having a recess therein for receipt of said elastic material.
Claim 6
Dependent Claim
21 words
The panel according to claim 4 in which at least one of said facings has a lining of high specific weight.
Claim 7
Dependent Claim
13 words
The panel of claim 4 in which said facings are of different thicknesses.
Claim 8
Dependent Claim
55 words
The panel of claim 1 in which the lateral edges of said panel have a tongue and groove arrangement for engagement by a like panel and in which the tongue and groove are dimensioned after engagement to permit the location of a stud within said groove as well as the tongue of an adjacent panel.
Claim 9
Dependent Claim
91 words
The panel of claim 1 in which the lateral edges of said panel have a tongue and groove, said groove is provided with two substantially "U" shaped intermediate members, said intermediate members being spaced apart, a strip of fireproof material arranged in the space between said intermediate members and extending outwardly beyond the lateral edge of said panel, and a recess within the tongue on the opposite side of said panel for receipt of the extending portion of fireproof material and portions of the intermediate members of a like adjacent panel.
Claim 10
Dependent Claim
39 words
The panel of claim 8 in which said fireproof material extends into the frame of said parts beyond the base of the groove whereby said frames of said two parts are bonded together along only a relatively narrow area.
Claim 11
Dependent Claim
21 words
The panel of claim 9 in which said strip of fireproof material is subdivided into two parts at the parting surface.
Claim 12
Dependent Claim
32 words
The panel according to claim 2 in which the margin of said frame that faces the space between the facings when viewed from the facing toward the parting surface are beveled outwardly.
Claim 13
Dependent Claim
22 words
The panel of claim 1 in which said two parts are mirror images of each other with respect to the parting surface.
References Cited (Backward Citations)
CA825661A
Cited
US3262136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |