Prehung fire door unit with one or two swing door leaf or leaves
US9376855B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2010 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2003/7094
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A prehung fire door unit with one or two swing door leaf or leaves intended to be mounted in an opening made in a stonework construction, rising up substantially vertically in a building. The prehung door unit includes a fixed frame and at least one door leaf, the fixed frame being able to be fitted, at least in part, into a recess made in the opening. The prehung door unit made of an assembly of profiled elements fitted end to end and each made from an elongate flat element made of rigid material having temperature and fire resistance properties and that can be applied, either directly or indirectly, against at least one of the closed end faces of the recess so as to create, in the closed end of the recess, an additional finishing and/or supporting thickness for each door leaf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.