Door
US4716700A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Dec 23, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2003/7071
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A thermal and moisture resistant door comprising a perimeter framework consisting of top and bottom rails and opposite vertical stiles and an interior framework secured to the stiles and rails. The interior framework consists of a series of panels fitted into the stiles and rails. The stiles and rails are a 9-ply structure consisting of a pine core having on the interior and exterior sides two cross-banding layers, a vapor barrier layer and an outer oak veneer. The panels consist of a 13-ply structure including a pine core having on the interior and exterior sides two cross-banding layers, a vapor barrier layer and inner and outer oak layer. Each edge of each panel is elongated in order to fit into a corresponding oak block on the associated stile or rail. Each panel is routed or moulded such that the inner wood layer is visible, while the remaining layers of the panel are substantially concealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.