Metal door assembly and method of production
US3987588A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/88
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A formed sheet metal rectangular-shaped frame is positioned between two sheet metal side panels which may be embossed to provide the appearance of small wood panels. The frame includes an elongated frame member for each edge of the door, and each frame member has two outwardly facing parallel spaced channel portions integrally connected by a center web portion. Extruded plastic trim members cover the top and side frame members and include longitudinally extending hook-shaped leg portions which project into the channel portions and snap-fit onto inwardly formed edge portions of the side panels. A foam insulation material is expanded between the side panels and also serves to space the side panels laterally from the frame to form a thermal barrier. The side trim members are interrupted or notched to receive the door hinges and a latch bolt housing which seat on the web portions of the corresponding frame members. A generally U-shaped elongated door seal is secured to the frame member which extends along the bottom of the door. The frame is preferably constructed in two opposing generally C-shaped sections which are expanded to receive the edge portions of the side panels before the f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.