Title:
FLUID SHUTOFF TOOL
Document Type and Number:
Japanese Patent JP2005054842
Kind Code:
A
Abstract:
To surely shut off a conduit by heat, when a pipeline is in emergency, particularly, the pipeline is exposed to flame when the fire breaks out.
A tubular body 12 is made of thermal expansion material and disposed to an inner face of a central band of a tubular main body 10 whose both ends are detachably connected with pipes. The tubular body 12 is inserted so that fluid can flow therein, and inner cavity thereof is filled when the thermal expansion material is expanded by heat.
Inventors:
SHIBABUCHI TOSHIO
NAKAOKA MIKIO
TSURUGA YOSHIYUKI
NAKAOKA MIKIO
TSURUGA YOSHIYUKI
Application Number:
JP2003284594A
Publication Date:
March 03, 2005
Filing Date:
August 01, 2003
Export Citation:
Assignee:
SHINWA SANGYO KK
International Classes:
A62C2/04; F16L55/12; F16L55/24; (IPC1-7): F16L55/12; A62C2/04; F16L55/24
Attorney, Agent or Firm:
Takao Itagaki
Yoshihiro Morimoto
Yoshihiro Morimoto