Fireproof frame structure in a building opening portion
US4993203A · kind A · utility
11Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Oct 30, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B5/164
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A structure of a fireproof frame for building opening portions wherein a groove is formed over the entire circumference of a wood frame, which is disposed to a building opening portion, at the surface abutted against an opening member. A non-combustible heat forming sealing material is filled in the groove and the surface of the sealing material is covered with a thin film, which is excellent in heat conductivity, by means of the self bondability of said sealing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.