Title:
開口部の閉止装置及びその維持方法
Document Type and Number:
Japanese Patent JP5586675
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a closing device that can easily and reliably open/close an opening of a variety of facilities such as a plant, without bringing an operator closer to the opening, and an inspection method and a maintenance method for the same.SOLUTION: Gas flows into a bag body 4 with an air chamber 7 for being filled with the gas, and the bag body 4 is positioned in an opening by bag body maintaining means 6 to close the opening. Changes in air temperature, atmospheric pressure and internal pressure of the bag body 4 are measured so that the presence or absence of the leakage of the gas from the bag body 4 can be checked. The gas is continuously supplied into the air chamber 7 and pressurized to maintain a closed state of the opening.
Inventors:
Michio Obori
Takanobu Ito
Ichiji Fukuba
Takanobu Ito
Ichiji Fukuba
Application Number:
JP2012227916A
Publication Date:
September 10, 2014
Filing Date:
October 15, 2012
Export Citation:
Assignee:
SHIN NIPPON TECHNOLOGIES CO., LTD.
International Classes:
E04H5/02; G21C9/00; G21C13/028
Attorney, Agent or Firm:
Nobuyuki Iida
Kazuhiko Iida
Kazuhiko Iida
Previous Patent: JPS5586674
Next Patent: DISCRIMINATING METHOD FOR PRODUCT PART-CASTING PLAN PART OF CASTINGS
Next Patent: DISCRIMINATING METHOD FOR PRODUCT PART-CASTING PLAN PART OF CASTINGS