Thermally insulated panel
US4057944A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1977 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Mar 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24157
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermally insulated panel comprises a pair of spaced facing channels, preferably of metal, which are fixed together in a structurally secure manner by use of a serrated rigid plastic sheet disposed therebetween and by a closed-cell foamed polymeric material which fills the voids between the rigid sheet and the channels. The channels are bound together and the spacing between them is sealed by means on the rigid plastic sheet which, in addition to securing the channels together, is permanently and monolithically sealed in place by the closed-cell foamed polymeric material. A thermal break is formed to prevent loss of heat across the shell of the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.