Title:
FIREPROOF DOOR
Document Type and Number:
Japanese Patent JP2001220963
Kind Code:
A
Abstract:
To provide a fireproof door securing aeration and ventilation at ordinary time and capable of preventing the expansion of the spread of a fire at fire occurring time.
This fireproof door is arranged in an electric room held in a positive pressure state. A louver 6 for aeration is arranged in a part of the door, and thermally expanding members 11 are installed on upper surfaces of blades 9 of the louver 6.
Inventors:
SHIGA KOJI
Application Number:
JP2000031539A
Publication Date:
August 17, 2001
Filing Date:
February 09, 2000
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
E06B5/16; H02B1/28; H02B1/38; H05K5/06; (IPC1-7): E06B5/16; H02B1/28; H02B1/38; H05K5/06
Attorney, Agent or Firm:
Tetsuya Mori (2 others)