Title:
FIRE-RESISTANT CLOSURE
Document Type and Number:
Japanese Patent JP2011166985
Kind Code:
A
Abstract:
To provide a thermally-expansible fire-resistant closure that is prevented from falling with expansion when a thermal expansion material used in the fire-resistant closure is expanded by heat.
A pipe line is completely closed by efficiently filling a space caused by a reduction of volume of a resin pipe or the like by heat by making it less likely for a thermally-expansible member 3 expanded by heat to leak out of a noncombustible cylinder in large amount or to fall from the inside of the noncombustible cylinder 2 by causing the noncombustible cylinder to be deformed such that folded portions are unfolded to an original state.
Inventors:
ITO NAOTADA
TOFUKU MAO
TOFUKU MAO
Application Number:
JP2010028702A
Publication Date:
August 25, 2011
Filing Date:
February 12, 2010
Export Citation:
Assignee:
CCI CORP
International Classes:
H02G3/22; A62C3/16; E04B1/94; F16L5/04
Domestic Patent References:
| JPH05123757A | 1993-05-21 | |||
| JPH02192821A | 1990-07-30 | |||
| JPS5522468A | 1980-02-18 | |||
| JP2005214270A | 2005-08-11 | |||
| JPH0593458U | 1993-12-21 | |||
| JPH0915206A | 1997-01-17 |
Attorney, Agent or Firm:
Zentaro Hasebe
Sosuke Sato
Yasuyuki Yamada
Yoshihiro Kodama
Sosuke Sato
Yasuyuki Yamada
Yoshihiro Kodama