US4119749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moulded light-weight framed panel
Assignee: Johnson Controls Roth SAS
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Filing: 1977-07-21
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Granted: 1978-10-10
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Expires: 1997-07-21
Abstract
Abstract The disclosure is of a moulded light-weight panel and its manufacture, the panel comprising sheets of foamed material and cardboard, which may be corrugated, impregnated with a solution of elastomer which becomes polymerized to bond all the components of the panel together in a mould. Reinforcing and fastening elements may be incorporated in the panel.
Inventors
- 👤 Jacques Roth
- 👤 Michel Roth
- 👤 Paul Seiler
- 👤 Roger Lavenir
- 👤 Alain Manigold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:21
CPC Classifications
B; B62; B62D; B62D29/00; B62D29/04; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/5636; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/088; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B32; B32B; B32B27/00; B32B3/00; B32B3/26; B32B3/28; B29K; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B29L2031/3011; B60; B60R; B60R13/00; B60R13/02; B60R13/0212; B60R13/0225; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/24; Y10T428/24008; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/249921; Y10T428/249953; Y10T428/249981
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A molded panel comprising in combination a sheet of corrugated cardboard, a sheet of polyurethane foam disposed on one side of said sheet of cardboard, a finishing cover sheet disposed on the side of said foam sheet which is opposite said cardboard, further polyurethane foam disposed on at least the marginal portions of said cardboard sheet on the side of said cardboard sheet opposite said foam sheet, and in-situ polymerized polyol and isocyanate securing said cover sheet and said foam sheet together and securing said foam sheet and said corrugated cardboard sheet together and securing said further foam and said corrugated cardboard sheet together, said panel being curved in the vicinity of said further foam.
Claim 2
Dependent Claim
115 words
A molded panel comprising in combination a sheet of corrugated cardboard, a sheet of polyurethane foam disposed on one side of said sheet of cardboard, a finishing cover sheet disposed on the side of said foam sheet which is opposite said cardboard, further polyurethane foam disposed on at least the marginal portions of said cardboard sheet on the side of said cardboard sheet opposite said foam sheet, and in-situ polymerized polyol and isocyanate securing said cover sheet and said foam sheet together and securing said foam sheet and said corrugated cardboard sheet together and securing said further foam and said corrugated cardboard sheet together, said panel being curved in the vicinity of said further foam.
Claim 3
Dependent Claim
14 words
A panel according to claim 1, in which said cardboard has two smooth surfaces.
Claim 4
Dependent Claim
31 words
A panel as claimed in claim 1, and fastening elements held between the cardboard and the foam and projecting from the margins of the panel to serve for fixing the panel.
References Cited (Backward Citations)
US3647588A
Cited
GB1132634A
Cited
US3867240A
Cited
US4005239A
Cited
US4020207A
Cited
US3856611A
Cited
US4042751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |