Door panel and method of forming same
US6622449B2 · kind B2 · utility
18Cited by
46References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jan 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2003/7076
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door panel is disclosed that includes first and second doorskins each formed from two metal stile elements including a longitudinal flange and two rail elements including a pair of U-shaped projections defining narrow grooves, wherein the rail elements are connected to the stile elements by placing the stile element flanges into the rail element grooves and, piercing the U-shaped projections to form a permanent mechanical bond between the stile and rail elements. A method of forming such a door panel is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.