Tongue and groove panel
US6772569B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Mar 23, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D13/1618
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A composite wood panel is disclosed, the wood panel having parallel first and second longitudinal edges, and parallel upper and lower faces, and comprising: a groove formed along the second longitudinal edge, a complementary shaped tongue formed along the first longitudinal edge, and a barrier layer. A first surface extends from the tongue to the upper surface and forms a generally obtuse angle, &agr;, with the upper surface, while a matching surface extends from the groove forming a generally acute angle, &bgr;, with the upper surface, and the sum of &agr; and &bgr; is from about 175° to less than about 180°. The composite wood panel allows for convenient and fast assembly, particularly in constructing roofs, and also provides resistance against the penetration of water through the structure formed by the panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.