发明名称 |
Apparatus for Retrofitting an Existing Door to Provide a Fire Rating to the Unrated Existing Door |
摘要 |
The present invention provides for an apparatus for retrofitting an existing wooden door to upgrade the fire rating of the existing door. The apparatus comprises a door cover steel sheet having a non-combustible insulating coating on an interior surface for covering at least one surface of the door and a lock set reinforcement bracket having a non-combustible insulating coating on an interior surface for surrounding the lock set opening on the opposite surface of the door, the apparatus providing at least a twenty minute fire rating to the retrofitted door. |
申请公布号 |
CA2164452(A1) |
申请公布日期 |
1997.03.26 |
申请号 |
CA19952164452 |
申请日期 |
1995.12.05 |
申请人 |
FRIDLYAND, SEMYON;PERLIN, GEORGE |
发明人 |
FRIDLYAND, SEMYON;PERLIN, GEORGE |
分类号 |
E06B5/16;(IPC1-7):E06B5/16 |
主分类号 |
E06B5/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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